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 Post subject: sbc stock replacement heads
PostPosted: Thu Nov 21, 2013 6:26 pm 
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Joined: Mon Jul 27, 2009 9:06 am
Posts: 214
Are stock over-the-counter replacement heads allowed? Asking if the replacement 370 heads can be used in place of the 186 heads on a small block chevy. Thanks, John


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 Post subject: Re: sbc stock replacement heads
PostPosted: Fri Nov 22, 2013 10:00 am 
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Joined: Fri Jul 25, 2008 12:26 am
Posts: 6720
Location: Bristol CT
We are looking into this for you. We will get you an answer shortly

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SUPERCAR LEGAL

66 Belvedere I HP2 Hemi Auto 11.13 @ 124MPH 1.68 60' S/A

70 RoadRunner 440+6 Auto 11.21 @ 124MPH 1.72 60' S/A

70 RoadRunner Hemi Auto 12.39 @ 113MPH 1.90 60' S/A

71 GTX 440+6 Auto 11.35 @ 123MPH 1.79 60' S/A

71 RoadRunner 440+6 4Spd 13.61 @ 101MPH 1.99 60' P/S

72 Demon GSS 340 S/A 11.81 @ 118MPH 1.91 60' S/A


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 1:59 pm 
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Joined: Fri Jul 25, 2008 12:26 am
Posts: 6720
Location: Bristol CT
The 370 heads are allowed and a legal replacemnet for the 186 in SuperCars

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SUPERCAR LEGAL

66 Belvedere I HP2 Hemi Auto 11.13 @ 124MPH 1.68 60' S/A

70 RoadRunner 440+6 Auto 11.21 @ 124MPH 1.72 60' S/A

70 RoadRunner Hemi Auto 12.39 @ 113MPH 1.90 60' S/A

71 GTX 440+6 Auto 11.35 @ 123MPH 1.79 60' S/A

71 RoadRunner 440+6 4Spd 13.61 @ 101MPH 1.99 60' P/S

72 Demon GSS 340 S/A 11.81 @ 118MPH 1.91 60' S/A


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 4:11 pm 
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Joined: Mon Jul 27, 2009 9:06 am
Posts: 214
Great news, thanks. :beer


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 5:15 pm 
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Joined: Sun Dec 26, 2010 11:42 am
Posts: 515
Location: Florida
:pop Whatcha building? :stir

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1972 Chevelle SS 454 4 speed
1969 Malibu 2dr hardtop L48/4 speed


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 8:03 pm 
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Joined: Mon Jul 27, 2009 9:06 am
Posts: 214
Attachment:
69z.jpg
69z.jpg [ 52.43 KiB | Viewed 1789 times ]


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 9:09 pm 
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Joined: Sun Dec 26, 2010 11:42 am
Posts: 515
Location: Florida
COOL! :aok I was thinking that's what it was, or possibly a 70.5

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1972 Chevelle SS 454 4 speed
1969 Malibu 2dr hardtop L48/4 speed


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 10:48 pm 
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Joined: Tue Jul 12, 2011 11:48 pm
Posts: 81
how about an aftermarket block? i'm considering buying a car to build for my son. is there a Dart or World block that could be Legalized? Trying to build a chevy small block over 400 inches reguires using a 40 yr old 400 block


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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 11:20 pm 
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Joined: Fri Jul 25, 2008 6:12 pm
Posts: 2455
Location: North Salem NY
You have to find a peice that fits your build and the criteria outlined in the rules and bring it up for approval! If it looks stock or you have a good case we will review it! This goes for all marques!

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69 Nova SS 396 L89
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 Post subject: Re: sbc stock replacement heads
PostPosted: Mon Nov 25, 2013 11:31 pm 
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Joined: Sun Dec 26, 2010 11:42 am
Posts: 515
Location: Florida
Maybe a bowtie block?

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1972 Chevelle SS 454 4 speed
1969 Malibu 2dr hardtop L48/4 speed


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 Post subject: Re: sbc stock replacement heads
PostPosted: Tue Nov 26, 2013 1:50 am 
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Joined: Mon Jul 27, 2009 9:06 am
Posts: 214
World block 84030 is a 400 sbc and is NHRA approved as a replacement.


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 Post subject: Re: sbc stock replacement heads
PostPosted: Tue Nov 26, 2013 3:15 pm 
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Joined: Sun Dec 26, 2010 11:42 am
Posts: 515
Location: Florida
:aok "Max bore 4.2" :rock

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1969 Malibu 2dr hardtop L48/4 speed


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