TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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I have a set of used '86 vette heads(casting number 462624) i just bought from a friend for $100. i am building a 355 tpi engine and was wondering if they would be any good with a set of domed pistons. i was planning on rebuilding them, new valves, springs, studs, etc.... should i keep these heads and rebuild them and have some minor machine work done to them or should i buy a new set for a few hundred. i am trying to save money here but heads are very important. i can rebuild them for 200-250 or should i spend 300-350 on a cheap, but new set????
well it depends, in 86 the corvette came with iron heads, with a switch to aluminum later during the year. but the 86 aluminum heads are NOT the good corvette d-port heads. those came in 88 i think. i belive the iron vette heads were 76cc and the aluminums were 58cc. i would run flat tops with the aluminums, and i would sell the iron heads to a metal scrap yard, they are useless to modify, the design isnt too great for flow, thats why they changed and thats why the fbody L98 heads were new designed 64cc heads.
Last edited by u r sofa king we tah did; 01-24-2002 at 04:34 PM.
i'm pretty sure then are the iron ones with 76 cc chambers. i also have my set of heads from my 87 305 tpi i could use. would i be better just buying some cheaper heads for like 350 a pair???
if you can find a good set of heads for ~350, then thats what i would do. i wouldnt go with the iron vette heads. you might get average results with major port work and having them milled to 64cc