Re: End of year HP
 

Can someone enlighten me on this?
"Chev 62-79 added SBC replacement heads for Stock"

Re: End of year HP
 

NHRA has approved 4 aftermarket cylinder heads for SBC stock engines for 2018. It's up to you to look up your engine in the guide and choose the ones listed for your combo,

Re: End of year HP
 

RHS Cast Iron heads # 12400 & 12402 accepted as replacement head

Edelbrock heads # 60887, 60637 accepted as replacement head

Dart Cast Iron heads with cast # 10021070, 100220010 accepted as replacement head

World Products Cast Iron heads with cast #'s 043600 & 043610 accepted as replacement heads

Got it thank you, I see a +5hp goes with these too.

Re: End of year HP
 

Me thinks a smell a crate motor near bye.

Re: End of year HP
 

Yeah, those small block Chevy heads are so hard to find....gimme a freakin break.....for 2019 I guess we can all run holleys since the q jets are so hard to find....CRATE MOTORS.........My sincerest APOLOGY to any IHRA crate motor racer that I ever offended.....

Re: End of year HP
 

It looks like the Edelbrocks are an aluminum casting and come with 2.02 intakes instead of the 1.94. Would this still be a legal replacement but + 5 hp?

Re: End of year HP
 

I noticed that too, the 60637 and 60887.

Re: End of year HP
 

Keep in mind these heads still have to CC and have the same valve size as the head you're replacing.

Re: End of year HP
 

I'd say not a chance. With the way things have gone,"who knows" is a smarter reply.
Pete

Re: End of year HP
 

Chevrolet 350 255 271 267 1969 Kingswood


I`m very Happy !!!!!!