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Hi Guys!

Has anyone taken a look at all the applications for the 4.3L and determined which GM cylinder heads are the best for high performance use? What year/make/model of car/truck were they available on.

I am thinking that my vavle guides may be in need of attention. So when I go junkyard crawling to get a new set of heads to send to the machine shop for a rebuild, I want to make sure that I'm starting with the best cores that I can get.

Thanks for the input!

Rick
Chesapeake, VA
'92 S-10 4.3L bone stock!
 

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Try to find 92 thru 95 CPI heads i'm not sure of the casting number but the Engine code is W or X , just make sure they are not the TBI heads
The cpi heads flow real good and with some slight port and polish flow really well and when combined with a mild cam or a high lift cam really bring out some power

Hope this helps
 
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