882 vs 193 heads.

882 vs 193 heads 94 I and 1. 450" lift cam, 882 heads, 2 plane intake, I was just working on some 882 heads, and was looking for input from others that have worked on them. the 1. Not a Good Head for Hotrod or Race Use. 60 on motor. 72/1. Engine Mar 22, 2020 · The heads are casting 882. 5. 450" lift. After replacing the factory 882 heads with the 180cc RHS Mar 11, 2009 · 882 vs 492 heads (kinda long) Jump to Latest 21 - 31 of 31 Posts. 71- 76 76cc, best large-chamber head; 1. Good for a low rpm truck applicationand thats about it. Jan 20, 2005 · The ones I have have longer narrow holes which is why the intakes are better than the 882. It is a 39700010 so a good block, but it came with 882 heads on it. Swapping to a set of box-stock Dart IE 180's (72cc chambers) put me deep in the 13's at nearly 100mph with no other changes. 882 heads were designed by Chevy to be used in 350 ci and 400 ci engines. Oct 13, 2006 · I have a set of Chevy heads with a casting number of 333882, with 1. 8 hp 459. Text descriptions of the heads can also find text descriptions for each head type under the respective headings. 60 exhaust valves in them. On the plus side, the aluminum Corvette head offers a slightly better exhaust port than the older iron Jul 1, 2021 · 1985-earlier were pushrod guided, either by slots in the head casting itself or slotted steel guideplates. Jan 19, 2014 · i have some 193 heads [used] also a very used 1980 305,i can do all the work my self except boring of cylinders , have a . 1. I *believe* 210hp heads are about 70cc, and the 210hp 327's was only like 8. Cast #193 (14102193) , are they any good? The machine shop said they could installed stainless steel ferrea valves 2. www. May 26, 2014 · The 193's are TBI heads (1987-1995) and have intake runners of arund 150cc with swirl port design with a 67cc chamber - basically first generation Vortec. Jan 11, 2004 · While that is a good price on those heads, I don't think they would do you much good on a 327. Aug 26, 2014 · The Chevy 193 Heads are the 1987-1995 TBI 350 cylinder heads Grumpy. Jan 20, 2015 · i recently built an engine using the same rotating kit you have except with a 5. but on your budget i doubt you will see 500 hp. These heads also have 1. I don't have any rules to go by, but the topic fit what I have. 7 74. 07-03-02 04:09 PM - Post# 113461 Stock out of box 461x heads 1. 9 at 110 mph. Chevy Cylinder Head Pair SBC 5. '12. Those were great heads in their time, but pretty constricted flow compared to almost any SBC head today. 0 mustang gt's! but one did crack months later. 02 / screw in studs / guide plates / Z28 springs etc. I have a good 1980 K blazer engine, 3970010 4 bolt but I can't see wich heads are on it, they are the original from the truck, they are the ones with the sodium exhaust valves, are Aug 14, 2005 · The 882 head is the most produced chevy cylinder head over and above all other casting numbers. it is one of the worst flowing SBC heads ever made. After a couple of years of not working on it (saving up money for parts) I have started to work on it again. 400-inch valve lift to the 882 head but is better by 15 cfm at 0. 20 in a 2800 lb camaro. I am lookin for some 993 heads because my machine shop guy says thats the route I wanna go. 94/1. This also shows the original shape, and how it needs to be altered to m Jan 27, 2014 · Are these heads any good 3832441 i wanna no if thoese heads are good or should i go with some vortecs from pick and pull i have a 355 sbc hooker headers holly 650 carb holley fuel pump 350 turbo trans with 3. Mar 27, 2003 · I have read several articles recently where folks are talking about 882 heads as if they were really the cream of the crop. Are 193 heads good? 193 is typical of most TBI ’87’95 iron heads, with half the intake valve-bowl approach blocked off—not good for serious performance. I have the Heads off the 1994 K1500 Suburban. Nov 24, 2002 · if you have the 487 heads use them, they are old style castings, heavy, but watch the valve seats. 000 Bore fixture Sep 28, 2011 · 23 Degree Heads VS. 5 to 1 with a 64cc head. 400-inch lift are almost identical. If there is a difference, is it going to be $1500 worth of difference? Performer RPM Air-Gap Intake and CompCam Thumpr CCA-CL12-602-4 295/313 is the rest of the set-up. (I have both) The intakes are much straighter in on the sides as they don't have to curve around the pushrod holes like on the 882's. can my heads except this Dec 22, 2005 · The chamber is identical to the 350 iron heads that has casting suffix 193. May 24, 2012 · 14102193 heads are like 65 to 66 cc found in truck 350, while 14102187 (used in 305) heads were around 55 to 58 depending on the casting. Heads fit 1987 - 1995 only, TPI and TBI intakes. 8 hp - - - - 164. See full list on chevyguide. Sep 18, 2008 · Exhaust port shape on Chevy small block heads confuses me. 193 casting like this. I've only got $500 to spend to get this thing like I want it and into my 69 Camaro. Mar 28, 2008 · They are crack pronemore so than any of the earlier 76cc heads. They yield average flow numbers, but respond to modifications just like any other small block head. Sep 27, 2014 · The 193 heads are designed for lowend torque. Chris Sep 24, 2008 · This head is very similar to the 882 head tested earlier. Swirl Port Chevy Iron heads the 191's are. 94 valves and the 76cc chambers. 050'' Lift:218° Intake / 226° Exhaust, valve lift with 1. And the 113 castings have a revised exh port shape than the 083s so that explains the exh flow difference. I have two questions & I'd appreciate your input: 1 Jul 6, 2019 · I bought a set of brodix track 1 220 runner heads from summit. A good head for a 350 that is affordable is a dart 180cc iron eagle then go buy your own parts, manley street flow valves or your stock 2. Am I going to see the difference between the two? The flow numbers stock vs stock are obviously night and day difference but these 882 heads have been worked over. In addition to early heads, the 1986 and later Tuned Port Injected (TPI) 350 H. 67% 219/172 Jun 2, 2011 · OK, I bought a block today just for the heck of it. Oct 13, 2006 · Actually, similar results can be had from just about any small-valve(1. :lol: Currently have 268H cam with stock bottom end. Casting number is 191 or 193 on these heads. 60 valves available; latter machined for screw-in studs & guideplates: L: Right-facing bench 993: Common big-chamber head, not a lightweight casting; sim to 487; may have steam holes: M: One triangle: 882: Alternative marking for 882; see I, above: N: 2 triangles: 624 Mar 16, 2011 · Tech Help. So the 193 head actually makes good sense for a mild street build (low RPM torque). I think the reason this is common on both heads is that the 70s engines were set up with lean mixtures and retarded timing to get the exhaust temperatures higher for the early style catalytic converters. There are not many heads in the $1k price range that flow as well as the IK's except maybe profiler but I would not use the ready to run version. 94 valved 993 head, and can always add to my stash of 882's. It will make good power up til 4500 or so. 940/1. 94 Heads, i am hoping to make 350-375HP with them. Feb 12, 2008 · The 180 cc heads will most likely perform the best from idle to ~6000 RPM. 6 rockers on a #193 head is kind of a waste of time and money. Sep 3, 2004 · personally i would stick with the 441's, because like was mentioned 40 hrs worth of port work on 267/305 heads would cost a buttload of money if you can't do it yourself. Materials and Construction: Aluminum vs. #2) a 350 smogger with fresh v/v grind # 9889338, (very similar to the 882 casting,) and #3) a TPI/TBI 14102187 with 3 angle v/v grind. There are different variations of the 882 head, which has been stated already. p gain will feel much better seat of the pants wise. 480'' Exhaust, and 111 lobe separation. probably around 1250 to 1300. Let the vette restorers have the low po stuff. I'm happy with the heads. There's a company remaking 461 heads cast in aluminum, and with larger 180cc runners. 6k miles on them, they had a crack in one exhaust seat Like Class Action Lawsuit level of terrible. Both are great Mar 7, 2003 · C3 Tech/Performance - 882 vs. May 11, 2014 · But head replacement can get you into intake to head bolt up issues and rocker arm issues. 5 comp pistons Mar 1, 2021 · Types of GM Vortec Heads L31 Vortecs comes in two different casting numbers, 10239906 (#906) or 12558062 (#062). com Apr 1, 1999 · The torquer offers great airflow for a low price with virtually identical flow at 0. BUT I have in fact seen & owned them Cast as 882 exact same head as a 881 , late 74 882 issues had the good My opinion is to stay away from the 882. 7 hp 206/145 70. All flow numbers for CNC Heads UK come from their Web Site. This was due to the double heat riser passage. 02 etc they will be better than what you have now. can my heads except this Apr 18, 2013 · This finishes up the chambers, then goes into the "SCREW" or REAL vortec head design. Chevy '882 CCM 151/59 1. The heads you have now have big chambers and the tiny 1. Most flow numbers for DART heads were from DART or their Web Site updated Aug. 71% 204/143 70. com ] Jun 2, 2023 · In this video we do a head to head comparison and discuss the facts, and also the pros and cons between the 624, 193 Swirl Port, and the 062 Vortec small bl Jun 7, 2006 · The 882 heads are smog heads from '74 to '80 and not very well regarded, but neither are stock '85 heads - if you can find out more about the 882's they may be better than your stock '85 heads - ie not only polished & ported but if milled so they will give higher compression and if valves were changed to 2. Oct 18, 2012 · I have stock 193 heads that i will be porting. I assume that the 882 refers to the serial number 333882. We would like to show you a description here but the site won’t allow us. 60 valves reground and a set of valve springs that match your cam. 76 cc combustion chambers. 29% 125/109 87. Round push rod holes. 5-1 compression or so. The 083 were used in Fcars and the 193s were used in light- and medium-trucks and fullsize passenger cars. Jan 7, 2010 · Stock out of box 461x heads 1. 480/. Too bad shipping would be so crazy shipping those headsI need another 1. The issue is that everywhere I read says the 624 heads are absolute junk and not worth spending any money in them. True, Most early 882's were equipped with 1. Jan 13, 2009 · 882s could be called the best of the worst. These heads are very similar to the 441 and 493 400 small block head. AFR's two piece guides are a lot easier to deal with but a higher price point. 50) these are highly sought after and would give you a small performance boost over your 624 or 882 heads. 94 valves flow almost as well and were used in 300 Mar 23, 2012 · Thumper cam, street dominator intake, 882 heads and powerglide is a recipie for a car that is slow AND gets terrible gas mileage. Depending on the cam, intake, pistons, and headers you run, you might get up to 350 - 400 hp out of them -- maybe more if you heavily work the heads and rev the crap out of it. The bump in compression will help also probably a 20 to 30 h. They are more preferred over the 882 head due to their heavier casting. Unfortunately the 487 heads are very prone to cracking in the exhaust valve seats. Best I can find is a fairly consistent >200cfm rating in the garage is a well used 350 wearing some heads with casting 993. The 487 have 180cc runners, while the 461 has 160cc runners. Feb 20, 2011 · I hear a lot of mixed reviews on the 882s. First: What ports are in om my motor, a 1992 Chevy 350 gen 1 small block w/ swirl port heads from a Roadmaster? Judging from how they look, they are either oval or square I guess? Then: How does the the different port styles fit against Mar 11, 2003 · The only difference between the 487 and 487X is that the X has 10cc larger intake port volume. May 7, 2007 · this is what i found on the heads: the 882's were installed on Chevrolet engines from 1974-1980. 624, or 882. Retrieved from "https://www Jan 5, 2014 · 333882 heads {been called the best of the WORST (light weight castings)}. 461 vs. Heads have the center bolt through valve cover. The only problem that I see is that depending on the pistons you have, you compression ratio is probably only going to be around 8 1/2 to 1 Thats fine for a mostly stock engine but with a smaller chamber head like the ones that used to come on the 327's you would be up closer to 9 1/2 Nov 13, 2013 · the factory 882 cyl heads are about the worst small block chevy heads there are. the 624 SMOG era heads? which were lightened / thinned versions of the 882 heads based upon what I've heard I had a set of 624 heads taken off with 14. Jan 27, 2014 · My question is what heads would be better for my car 882 or 193 swirl ports? I hear 882 flow better but have a 70 something cc chamber so it has low compression but 193s have nice torque but suck after 4500rpm but will increase my compression. It will go faster. dont reuse the heads Re: 336 vs. It gives around 11. The "Chevrolet Small-Block V-8 Interchange manual" by David Lewis states as follows: a lighter cast head was released sporting 1. Both castings make two different part numbers one with the center intake bolt angle of 90 degrees to the port face these fit 55 through 86 intakes; then there is the 72 degree Aug 15, 2006 · I just bought a rebuilt 350 with a mild cam, 882 heads and a cast iron intake manifold for $1,000. The also Jan 13, 2009 · As to heads for a 400, for my money the Dart SS heads have been a better investment than rebuilding most old heads, especially if you want screw in studs and bigger valves. Updated July '10 — and were converted from 10" to 28". 02 intake valves, the small block Chevy engine made a respectable 355hp peak at about 5,000 rpm and a big, fat table of torque Username Post: 881 heads? good as 882s? (Topic#60580) davidh Senior Member Posts: 562 Loc: Oklahoma Reg: 02-17-01 Am I going to see the difference between the two? The flow numbers stock vs stock are obviously night and day difference but these 882 heads have been worked over. I want to run 350-375 hp on pump gas and keep C/R at 9. 480 lift with 230/230 Duration at 0. 60over bore 9. 75 lift cam. 191 castings; 1-ton used No. Car picked up 10-15 mph in the quarter mile and several mpg. What are the 882 flow numbers Jun 8, 2021 · To determine what type of heads are on your small block Chevy, take a look at the illustrations below for 'Early' or 'Late' Style, Aftermarket Aluminum SBC heads, Aftermarket Cast Iron heads, and other SBC cylinder heads. The reason that the earlier iterations of this engine cracked was due to the fact that they ran really hot. See All 19 Photos. 50-inch valves with either 67 or 76- cc combustion chambers. The 96 and up use the completley different L31 Vortec bolt pattern. This also shows the original shape, and how it needs to be altered to m Oct 18, 2012 · I have stock 193 heads that i will be porting. Jan 29, 2010 · i always heard the heads that came on the 400's were the worst 76cc head to use,, i don't think they came with a 882 head ,,, if u have to do any work at all on old stock heads ,, they can become a money pit real fast , check out the EQ stock replacement heads ,, it looks like a real value to me for stock replacement Jan 1, 2007 · Stock 882 vs. Apr 5, 2012 · The vane in the valve pocket of the 193 can be ported out; this makes what essentially is a cast iron L98 head which actually exists as castings 14096217 or 14101083. 5:1 compression ratio with these heads, comp cams . 4 hp - - - - - - GM LS-1 204/- 2. 84 valves. At 0. 72% 1. You will still be close to 10:1 SCR with those heads combined w/ flat top pistons'but'still a lot better than the 081 heads. Other than than the fact the 882's are crack prone, if you HAD to use one of the 3 which of the 3 castings would you use and why? Mar 8, 2007 · years ago i ran these 882's in high school and they worked good after a full comp port/polish, port match and 3 angle polished valves, they were good for 330hp , good enough to beat many 5. 7L 350 193 Slotted Push Rod Holes, Year:86-93 Mar 3, 2005 · The 882 head is your typical smog-era 70s head. 94 intake valves and low rpm valve train. unless you plan on going to high comp with racing fuel. be/q7unh0qkxey Nov 7, 2010 · option 2. 000 Bore fixture I say that for 3 reasons. To many people read to many magazines the fact is these heads were used in 2. 12% 339. 500-inch valve lift. 5 rockers . Not worth spending a dime on if you are shooting for more than 275 hp. May 13, 2009 · Spark plug position and chamber looks a little better than the early 64cc heads. I seems like they are the first design smog head. 5 CR if i remeber correctly. Feb 4, 2014 · "Not all late 882 heads were created equal. omniapartners. As for an estimate of power I can't say but if the vortec heads work well with the bottom end it has its a safe bet that it will have more power than it did. They are not exspensive heads. Apr 7, 2017 · Neither 991 or 193 heads are any good for performance. Cast Iron. They run out of breath by 4500 rpm,so,choose the rest of your combo to match that power band. 39% 423. YOU WILL NEED TO LET US KNOW IF YOU NEED THE ROUND OR SLOTTED PUSH ROD HOLES. Granted, they'll be small, like a performer or dart iron eagle 180, but still offer significant improvement over a stock head. Jun 7, 2004 · The 993 heads were used in 72-73 Chevy 350s, many of them were the 250 horsepower version. Feb 1, 2006 · I didn't post the original question. 7 rod. 73 posi trying to make least 400hp I flowed and give results on sbc 882,441,487,and 487x heads. 80% 180/147 81. I believe that 882's were used for a hsort while on L82's before they switched to the horrible 624 castings624's will crack if you look at them wrong. I am looking for an inexpenisve iron head to replace them with. com Jan 6, 2008 · I have to choose some heads before MONDAY My choices are some 993, 441, and 882 casting SBC heads(all the same price and valve size). to get 500 hp, you will prob need more cam than that. the 882 heads were installed on the 350ci and 400ci engines (400 heads had steam holes). 02 valve form up to 375 horse stock. 355", 9/1 comp flat tops, . Dec 19, 2005 · The aluminum L98 heads (113 casting) are equal to the iron L98 heads on the int, and much better on the exh side, and slightly better than the 193 exh as well. You may want to re-think this a bit. With that cam somewhere between 12-18 degrees initial timing with vacuum advance unhooked and 34 to 36 mechanical all in by 2500-3000 rpm would be ideal but all motors are different depending on other factors but that would be the ball park numbers anyways. The port flow numbers are roughly equivalent to a decent set of older iron heads like the 882 or 441 heads. The catch with performance engines is you can usually find ready to run, used aftermarket heads for $450-500. My set was originally on a early 1990s 300hp/350 GMPP crate the one that pre-dated the 330hp HO. Took the same heads bolted on a 434 still haven't check the heads bc well of course brand new set of heads right. Vortec - I've been told my '79 heads arent' going to cut it in terms of their power potential. /224 exh. Originally, the stock #906 casting head was available in two versions. Dec 31, 2006 · By ALL means, regardless of brand or type of plug, use anti-sieze on the threads every time on aluminum heads ! I did not use it awhile back when changing the plugs in my Harley bagger, and when I went to remove the rear plug, it peeled the threads right out of the head :sad: It was an expensive lesson, but a good excuse to replace the stock heads with a better breathing set of Screamin Nov 15, 2005 · 193 posts · I am using 882 heads that I had rebuilt and ported some years back before I knew about head cc. 000/1. The exhaust can be bumped up to really high flow numbers. run the 882 heads (please dont bash my 882's here - we all cant be running vortec heads)using long tube headers, hydraulic lifters, roller tip rockers and a comp cam 12-238-2 with the following specs: Duration at 050 inch Lift 218 int. 50 E valves. 50, 600cfm edelbrock carb, Performer Oct 9, 2017 · The vortec head is a better flowing head than the 882 although to be used with that cam they will have to be machined to handle over . Before that Chevrolet used the 993, 487, 336 and 997 castings used from 72 to 84 on the lower compression engines. SBC heads: Upgrade your engine's performance with Small Block Chevy Cylinder Heads. If you are set on the 882s, get your self a performer dual plane intake, ~210-215@0. Some books say model years of 1974-80 and other books say 1975-77. at a reasonable level for pump gas. Most of them have GMs first attempt at induction hardening of the exhaust seats. The heads make reasonable power as stock replacement heads, but there are certainly better heads available for a little more money. 364/2. The 991's are large chamber heads thus low compression without a lot of milling and or piston changes. There are other casting numbers but the 193/187 are very common. In this video I compare Blueprint Muscle Series H8002K aluminum cylinder heads to General Motors small-port Bowtie Vortec iron cylinder heads. 50 valves. zero decking the block is a good idea if your going to pull the engine down to change pistons. I've heard these are actually descent heads and they flow ok considering they are off a 305. Oct 23, 2021 · What are 882 Chevy Heads. 76cc 1. 500 but with very light 3-angle valve job tested on SF-600 FlowBench Flow tested at 28" on 4. _____ Dec 18, 2007 · I would not use the -896 heads on the 350, on the 283 yes. i guess what my question is. it would run a ton better by just putting the vortecs on with a steel shim gasket and a matching cam shaft. the Corvette L98 23 Degree Chevy Head The 23 Degree Street head uses a conventional 23 degree valve angle, making it a direct, emissions-legal swap for 1995 and earlier non-LT1 Chevy heads, has factory valvetrain geometry, and uses standard small block components. If both heads are 1. your building a budget small block chevy what heads should you be looking for and what to stay away fromsee part 2 http://youtu. I played with 492, 041, 186, 624, 882, 461, 462, 450,193, the list goes on and on and my favorite out of all is the #601 305 head that many machine shops and naysayers said will not breathe on the top and limited rpm potential and ping like crazy. Feb 15, 2008 · In my opinion the BowTie head is far above any of the other castings you have mentioned, but to put it in perspective, it is still less of a head performance wise than a typical 200cc runner Dart/World style head, and maybe (in certain aspects- chamber design- port height-etc) not as good of a street head as a typical Vortec. From Crankshaft Coalition Wiki. 462'' Intake / . 1st Hand I can say they do work nice in Chevy & GMC Trucks where you need lots of off idle torque & Midrange Power like for 4x4 & Towing duties. How do these heads compare to Vortecs? I am assuming that the Vortec head is much better, given GMs 30 hp rating difference when they changed heads. I installed them right out of the box on a 383 stroker. Enough to feel a difference but not enough to buy 100 octane Dec 19, 2021 · Normally you have play with the alignment some on pretty much all aftermarket heads. I suspect the 336's (they were for 1971 cars) have smaller ports as that aera of the smog laws were not nearly so bad as 1974 when the 882's came out. The 993's have a much straighter shot to the intake valves than the 882's and the intakes are considerably larger appearing. Jan 14, 2004 · Tech Help. Jul 12, 2009 · Robert, The heads are not "junk", but they are nothing special either. 440lift 214*@. and on that un-named auction site go for $625-$650 a pair. Jul 20, 2010 · C3 Tech/Performance - Best Iron heads for cheap? - Looking to spend around $250 or so for some good easy bolt on iron heads. The speed pro pistons were listed with a 9. The valves are larger and the flow numbers at 0. 60 valves Jan 1, 2023 · Beginning in '71, the 882 head was also used on the 330-hp 350 and the 400 small-block. 882's are a good head but you have to watch for the cracking problem [ November 24, 2002: Message edited by: BOBCRMAN@aol. Aluminum heads, like those bearing the 10134363 casting number, tend to be lighter and offer better heat dissipation, making them a staple for performance enthusiasts. Jul 11, 2005 · The 291's are the old double humps with 1. 50 & 2. Sep 15, 2021 · Are you thinking of the 882 heads vs. 000 Bore fixture The heads on my truck are of the 882 variety which need will need a good cleaning and re and re. 2/122. they are the preferred head to use out of the factory open chambered small block heads Description Professionally rebuilt pair of Small Block Chevrolet cylinder heads. 025 deck. i had a set of 441's that were 1972 models and they had 1. The 882 heads are also prone to cracking in the exhaust ports. There is no difference in deck surface between any of the lightweight castings including the vortec heads, the only difference I see is the 624's have a double exhaust crossover (may lead to excessive heat) and the Nov 10, 2021 · Original 461 camel hump heads have smaller runners than the 487 heads. May 13, 2004 · What do you guys think of these heads. 458 Chevy LB4 Syclone N/A - N/A - - - - 165/119 72. May 9, 2008 · 487x heads flow the best out of all the big chamber medium valve heads (1. Dec 28, 2007 · for a mild street engine wich heads would you choose 882 or 487 ? I have both and plan on a mild porting, the motor will end up in a t-bucket I'm planning to build. . PowerHeads purposely didn't go hog wild on the porting Turns out the mystery SBC EQ (Engine quest) heads flow quite well as cast! 600 HP Potential!Some Flow bench results comparing them to Vortecs and Iron eagles Jan 11, 2005 · edelbrock heads edelbrock heads are much cheaper than 1700 dollars. I've heard the 882's perform well if you can keep them from cracking. 02 valves. r. Jan 27, 2015 · What GVX stated is the same thing that people stated about the 305 heads. Dec 11, 2011 · With 882 heads (76cc chambers) it ran low 14's in the 1/4 mile with speeds in the low 90's. niether heads has 2. The choice between aluminum and cast iron cylinder heads largely affects performance and durability. The flow numbers on 882s are not much less than small valve hump heads. my personal experience with 882 heads was with a 1977 olds Delta 88 with a chevy 350. Swapping to a set of box-stock Dart IE 180's (72cc chambers) put me deep Jun 10, 2005 · Scoggin-Dickey sells these heads already modified, or if you have the stock heads already, you can modify them yourself. Bascially here are my options. If you went with the 180cc heads, I think the XE274H cam would be best. Do you guys think these heads are worth all this effort? I'm I better off looking for another set of heads? Thanks In this video Robert discusses all the details about the 193 and 192 (Swirl Port) Small Block Chevy Heads!Remember to LIKE and SUBSCRIBE!Follow us on social Apr 3, 2013 · Brown's '90 12-ton truck heads should be a No. The 200cc heads with the 64cc chamber. 50), big chamber (76cc), cast iron factory cylinder head. the engine is a 350 Steel crank, 4 bolt main, 9. 94 valves flow almost as well and were used in 300 www. but they max out at with a 5. 1st your thinner casting 350 heads tend to crack easily and probably are already cracked. Do I just keep the heads Sep 18, 2013 · On this day of testing back in 06 I flowed 3 heads, #1) a HO head # 14101081 in used condition and cleaned up for testing. The 193s use a swirl ramp under the intake valve so they flow slightly less that the 083s, but the 193s flow better on the exh side. Mar 21, 2011 · I have a set of gone threw 193 swirl port heads given to me they look jest like the vortec heads but there not iv been told there great ware torque is needed they have have 64cc combustion chambers because there swirl port heads i was told there only good up to 4,500rpm What do you guys think abo Dec 14, 2011 · With 882 heads (76cc chambers) it ran low 14's in the 1/4 mile with speeds in the low 90's. But,from the Chevy mania website that has sbc serial numbers, they say these heads are extremely crack prone. Three-quarter-ton heads had No. THIS IS FOR A PAIR OF CYLINDER HEADS. Lastly I have a set of 305 HO 601 heads with 1. Its not super big power but decent. Engine Apr 28, 2007 · Here we go again, Put the humps on if they are in good shape they are far better flowing than the 882 castings. 02/1. 3rd your 305 head has a smaller chamber 52-60cc vs 76cc smog era 350 ones. The World Products Torquer S/R is an affordable, iron stock replacement head offering a choice of 1. All flow numbers for CHW — Cylinder Head Works heads come from them Web Site updated April '10. Stock for stock, I swapped the 882's for 487 casting on a L82-77 vette. O. I want to put on a set of 462 64cc heads what i'm looking for is what is the compression ratio on the motor and if i change to the 64cc does anyone know of a site that can help me out. 94 valves. 20% 175/136 77. The head that is usually refered to as the "Vortec" is the 1996-1999 with 67cc fast burn chamber. The car has run 11. and would this be a direct replacement without modifying the computer. As far as the difference when you consider the application between the 1972 base engine and the LT-1: Base engine used 1. 60 valves, screw-in rocker studs with guide plates Sep 21, 2009 · I have a sbc 400 2 bolt main out of a 1977 chevy truck the heads on it are the 882 76cc chamber. Sep 28, 2011 · 23 Degree Heads VS. SBC cylinder head identification. 02in and 1. The 86 thorugh 95 heads use a different bolt angle alongside the plenum. 50. Some of these even had 2. The exhaust crossover was redesigned and may contribute to the cracking between the center exhaust ports that these heads are prone to do. With 86 comes self guided rockers so all of those heads lack push rod guides. L98 Heads Trick Flow's 23 Degree Chevy Head vs. 94 valves and unported probable only 20 to 30 hp difference. vortec heads are a great lower cost option. 455/406 Don't know about 336's but 882 flow pretty well. The 882's are actually a thick head casting, but are very prone to cracking between the valves in the 2 center cylinders. You can get 76cc / 2. /270 exh. Jump to: navigation, search. The 882s are quite similar to 84-86E 462624 heads. then went to low mile junk 82' vette heads because my 78' nova was my only car in HS and shortly went to Nov 17, 2009 · Using a set of 882 iron heads that had been modified with a set of 2. The factory 350 swirl port (casting 193 from a 1992 G30 Van) flow just a little less than the Iron L98 heads do on the intake, but better by a good margin on the exhaust. I'm afraid the heads might need alot of work. Many classes of dirt track racing are restricted to these large chamber heads and the racers are looking for this casting number specifically. 02 intake valves, the small block Chevy engine made a respectable 355hp peak at about 5,000 rpm and a big, fat table of torque Username Post: 881 heads? good as 882s? (Topic#60580) davidh Senior Member Posts: 562 Loc: Oklahoma Reg: 02-17-01 Jan 17, 2011 · Any idea if it is worth it to replace the stock "193" TBI heads with say a set of 487/993 heads from the early 70's without any other mods except opening the center intake holes to align with the old heads? Any real value here. When If you are just looking for a set of inexpensive aluminum heads to use on a street cruiser, the L-98 Corvette heads perform decently. 550 65 - 123/108 87. i will say, roller tipped 1. Many LATE 74 Z28 and Corvette L-82 applications used a Hi performance cast version of the 882 head . The 305 head will out-flow it on a smaller port=more HP and more TQ. 810. With the set up it should have run 6. Jan 4, 2008 · well, i dunno about flow numbers, as has been stated, CHP has those figures in a chart. Advertised Duration 262 int. I used the DART SHP heads. 500-Pipe 76 70/59 84. etc. i was looking at comp cams xtreme 4x4 cam with, 262° Intake / 270° Exhaust, Duration @ . Keep 882 heads (already have crane springs), add an aluminum intake manifold ($140), 8" harmonic balancer ($60), new gasket set Mar 10, 2018 · They are Chevy 305 & 350 TBI Throttle Body Injection cylinder heads 1987-1995. Jun 17, 2022 · I got my heads checked at the machine shop and one was cracked, so they gave me a replacement rebuilt head. With prices to rebuild stock heads increasing all the time these heads would probably be one of your better investments. I glanced at the cylinder heads and noticed one has a 191 casting number and the other is a 193. With a simple gasket match the 882 will flow better than either one of the others. 50 cam an lifters and access to z28 springs, what do you all think about this rebuild . In contrast, cast iron Just as a comparison it went much harder than an identical 350 running the more common 882 heads. May 30, 2006 · Not knowing the exact specs on your 383 its hard to be accurate but most 383s with flat top pistons will be around 10. 24% 421. Didn't run even close only a 7. so the edelbrocks might be worth looking into. RHS Pro Action 180cc-HPWhen you realize a gain of 65 hp from a single component, you know you've made the right choice. I compared these to a set of '96 vortec heads, '71 336x heads, a set of '74 993's, a set of '92 217's and a set of '92 193's. motors, such as the Pontiac Trans Am and Chevy Camaro, are worth having. 050" duration cam, and forget about a lumpy idle sound. 6ex, with a 3 angle valve job and some porting. They are 64 cc heads, so some provision will have to be made for dished pistons to run them on a 355 or 383 to keep c. The 493 head was most often used on the '71 400 small-block, Apr 18, 2013 · This finishes up the chambers, then goes into the "SCREW" or REAL vortec head design. I am not impressed how thin the cylinder head decks are. 6k miles on the engine and even with only 14. 50 valves, pressed rocker studs and softer (less tension) valve springs with exhaust valve rotator cups; LT-1 used 2. 500-inch lift the flow is up 15% over the 882 head. 882 heads 11-11-02 09:48 PM - Post# 135201 In response to IgorT. Just a set of decent small block heads. 7 hp 205/144 70. 50 or 2. I can pick up a rebuilt set of 624 heads for $100 through a private sale which I could then just throw on the truck and drive. Jun 11, 2001 · The 882's arent the greatest head but are the better choice of the 2if they arent cracked. 2nd your smog era 350 heads flow terribly. 10% 419. These heads have chambers that look like they’ve inherited some smog-head characteristics, but they’re sufficiently removed to fall well short of that category. preferably a torque engine. I also have a set of 993's off a 72 350. Jun 28, 2010 · I don't know what type of heads you got and I am assuming its a 350 sbc. They were produced in the millions and if you are rebuilding a 70's era 350, more than likely it will have a set of these heads on it. Furtherore, I am leaning towards on older pair of used 882 heads, w/ no work done to them. The 200cc heads will probably allow your motor to breathe to ~6500 RPM which has the capability of creating more peak hp, but it will take away from the bottom end power a little. It flows about 210 cfm on the intake side max An aftermarket head such as the AFR 180cc, Pro Topline 180cc, GM Vortec, Dart Iron Eagle (etc, etc) head will move much more air. Thats to much for a mild cam and pump gas. 1 Mar 28, 2008 · I know this post is a couple of years old but it has good info about spark plug selection for L-31 Vortec heads. gccbry fmvcgt fninud cvdemj oujty ceju jyqqu joujbsc ktdyi kurlh