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Old 12-21-2017, 07:00 PM   #31
Nmbr1GMfan
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Default Re: End of year HP

Can someone enlighten me on this?
"Chev 62-79 added SBC replacement heads for Stock"
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Old 12-21-2017, 07:32 PM   #32
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Default Re: End of year HP

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Can someone enlighten me on this?
"Chev 62-79 added SBC replacement heads for Stock"
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,
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Old 12-21-2017, 07:51 PM   #33
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Default Re: End of year HP

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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,
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.
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Old 12-21-2017, 08:36 PM   #34
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Default Re: End of year HP

Me thinks a smell a crate motor near bye.
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Old 12-21-2017, 10:17 PM   #35
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Default Re: End of year HP

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Me thinks a smell a crate motor near bye.
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.....
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Old 12-22-2017, 09:50 AM   #36
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Default Re: End of year HP

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Originally Posted by Nmbr1GMfan View Post
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.
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?
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Old 12-22-2017, 10:25 AM   #37
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Default Re: End of year HP

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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?
I noticed that too, the 60637 and 60887.
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Old 12-22-2017, 10:34 AM   #38
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Default 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.
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Old 12-22-2017, 10:34 AM   #39
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Default Re: End of year HP

I'd say not a chance. With the way things have gone,"who knows" is a smarter reply.
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Old 12-22-2017, 11:24 AM   #40
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Default Re: End of year HP

Chevrolet 350 255 271 267 1969 Kingswood


I`m very Happy !!!!!!
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