I really like those black with red chevy bow tie valve covers made by GM Performance Parts. However, they are only available for perimeter bolt heads. I am building a 383 SuperRam engine for my 92 RS. My question: Do I have a choice between perimeter and center bolt heads...or do i HAVE to get center bolt heads since its a 87+ block? I was thinking maybe I could call AFR (want to get their aluminum heads) and ask if I could get 87+ heads with perimeter bolts. My only other option (that I know of) is to get center bolt to perimeter bolt adapters...but my ***...theyre like $150! Oh and one last question....will center bolt heads, c.b. to p.b. adapters, and the tall valve covers im talking about be ok with a superram...as far as clearance and install ease? How bout perimeter heads with the same valve covers? Thanks in advance.

 

Any typical SBC heads will bolt up to your block. The only differance is, with the center bolt heads, they are 87+ style, which means they need an intake with the center bolts alighned to fit them. If you wish to use parimater bolt heads, just get the manifold to match. Although if you are ordering from ARP, I'm sure you can request 87+ style heads, with the parimeter bolt pattern. Hell, I think they may even accept both, but I could be wrong on that.

 

AFR will setup the heads however you want them. If you need an 87-up intake pattern with perimeter bolts, you just need to ask. I'm sure like everything else there is some related charge, but I cant remember if they told me there was or not.