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With 882 heads (76cc chambers) it ran low 14's in the 1/4 mile with speeds in the low 90's. 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. With a swap to the XE268H cam and some tuning, I eventually went 13.0's at 101-102 MPH with the Dart IE180 heads in out-of-the ...Hemicrania continua headaches affect either the right or the left side of the head, but not both, and chronic migraine headaches affect either just one side of the head or both, ac...May 30, 2006 · THose heads (882) are not very thick or strong castings and typically crack between the valves. I agree with Bill if they need any work or $$$ to make them work I would buy a different set of heads. I did manage to run in the 12's with a set of 882's on a 383 but, I had a lot of time and wasted money into them. Made a head change and went to ...NKB 200cc/64cc ULTRA HIGH FLOW CYLINDER HEADS, STRAIGHT PLUG, FOR SBC CHEVY 327 350, 355, 383 ENGINES. Setup for hydraulic flat tappet cams. 200cc RUNNERS, 64cc COMBUSTION CHAMBERS. *** IMPORTANT NOTE *** You may add items into your shopping cart but in order to check out you will have to call us.The most common dimension include: 3 5/8" between the top 2 drivers side holes, 3 1/2" between the top 2 passenger side holes, and 4 3/16" between the top left …Spread Port. AFR's 220cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. This is AFR's largest, best flowing head for use with conventional rocker arms. Recommended for race applications or radical "Pro Street" style builds. Included Components.The Vortecs not only out flow the '882 head below 0.400" valve lift but that smaller combustion chamber is heart shaped not wedge shaped which improves the mixture swirl to promote a fast, even flame front. It is the result of 35 years of engineering refinement to the SBC head.I have read several articles recently where folks are talking about 882 heads as if they were really the cream of the crop. I assume that the 882 refers to the serial number 333882. But,from the Chevy mania website that has sbc serial numbers, they say these heads are extremely crack prone.Posts: 27. Re: Any info on 883 heads? They are "993" castings. 3998993 is the full casting number. These are the castings that would have come on a '72 350 engine and came on the truck engines. If you check you will see they have May 18th 72 date code on one, and it looks like March 21st 72 on the other.Head gasket repair can be an expensive, but necessary repair for your vehicle. Knowing the average cost of a head gasket repair can help you budget and plan for this important main...sbc swapping 882 heads. Discussion in 'The Hokey Ass Message Board' started by vintage_car, Oct 24, 2011. Joined: Jul 4, 2010 Posts: 71. Profile Page. vintage_car. Member. from Nashville, TN. I have the stock 882 heads with an rv cam sbc. the head on the passenger side is failing and soaking plugs in oil and producing a nice blue fog from the ...This is because inside the exhaust retainer is a mechanism that lets the valve rotate as it is doing its thing. The Shield is the metal skirt that covers the upper part of the valve spring. You should remove the rotator on higher lift street cams and race cams. It just adds weight to the assembly and has a nasty habit of comming apart at high rpm.You can raise the exhaust port just like an intake port, but the overall port shape is waht matters. most race heads have a vey large radius in the overall port shape on the exhaust unlike the old dog leg shape. 67 camaro. girly rollers on pumpgas: 420 - 641hp BretBauerCam, 1.39, 9.79 @ 137.5. 383 - 490hp 224/224, 1.56, 10.77 @ 124.6.The Chevy 193 Heads are the 1987-1995 TBI 350 cylinder heads Grumpy. I have the Heads off the 1994 K1500 Suburban. I am not impressed how thin the cylinder head decks are. About 10 times thinner than a Pontiac 400-455 Engine, Olds 425-455 & 366-427 Tall Deck, & Musclecar era 1965-1974 BBC engines.The 441 has a reputation for being a smooth-running head among production 76cc chambered heads. In this particular case it lost out to the 882 head, but overall it's a decent head that responds well to pocket port work and the larger 2.02/1.94 valves…. GM 882 IRON Port: 151 cc Valve Sizes: 1.94/1.50 L Flow at 0.400: 203 cfm.Installing new valve seals on a SBC 882 cylinder head and then installing the valve springs. Intake Seal PN: SS 72527Exhaust Seal PN: SS 72526This final head and cam package consisted of a setof Air Flow Research 195 aluminum performance heads and a healthy XtremeEnergy XR294HR cam. The hydraulic roller cam offered 0.540 intake lift,0. ...What cylinder heads do you want to see on the SBC 355?The time has come to pick the heads! I went into my stash of heads and picked a few sets that match our...1/4 of 1.5" = .375". "441" - 3932441. This head was found on the 1969-1970 350 engines (255hp 350), it was a decent flowing large chamber head. It had 1.94/1.50" valves, 76CC combustion chambers, DO have accessory holes, intake port volume should be 161CC's, exhaust port volume should be 61CC's.21011 posts · Joined 2009. #5 · Mar 20, 2009 (Edited) The rotators look like a thick retainer. They were used extensively during the smog years on the SBC. Heads like many of the 305ci, 882, 883 all used them. Look at your valves, spring side of head.

SBC head ? General engine tech -- Drag Racing to Circle Track. Moderator: Team. 10 posts • Page 1 of 1. 88bluestar Pro Posts: 378 Joined: Sun May 21, 2017 11:39 pm ... Now the 882 heads I had measured pretty large on the intake runners. I want to say stock they were in the 170cc area. Top. 88bluestar Pro Posts: 378Here's my input on a MILD street 383 with an honest 400+ HP: TFS 23* heads 64cc chambers. 10.3:1 compression KB -12cc dish pistons (or -18cc pistons for 9.5:1 if you want a cam that is less than 270* on the seat) Performer RPM intake. Reuse your 650 cfm carb.A quick test of eight pairs of small block Chevy heads priced at less than $1,000 to find the best small block Chevy heads on a budget.I'm getting ready to rebuild my 400 sbc and am on a tight budget. It has the original 882 heads on it. I was wondering if these heads would be decent or if they are …

The 041's have 1.94 intakes and 1.50 exhausts and 64 cc chambers with a fresh 3 angle valve job. They should give a 10.0 compression ratio with a .015 " head gasket. The 882's have 2.02 intakes and 1.60 exhausts. The chamber size is 76cc. They are pocket ported on the exhaust side and have a fresh 3 angle valve job.Al Covin 's book CHEVY BY THE NUMBERS notes/verifies this oddity of the 881 & 882 Castings being excactly the same late in the 1974 year . Just sold an extra set of the good 2.02 /882 cast heads . Many times the nicer HP 882 heads can be picked up cheap as people don't realize which version they have."it is common to use up to .480 lift cams with 882 heads, use the Z-28 type valve springs, watch for retainer to guide clearance, most will clear if you use an umbrella or o-ring type seal, do not use the tin shields or valve rotators on the springs. You will have to shim the exhaust spring seats,Check for stock rocker to stud clearance, most ...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Ok, 355 ci small block, running 8:1 trw turbo pistons, stock rods, Ea. Possible cause: Z15CAM. 3934 posts · Joined 2006. #10 · Oct 22, 2009 (Edited) The 67 and 68 302 used the 2.