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Old 09-22-2021, 04:15 PM   #1
e vassar
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Default NHRA changes to engine BP spec 9/20/21

G.M. 05-10 Added replacement throttle body
seems a little vauge
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Old 09-23-2021, 08:10 AM   #2
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Default Re: NHRA changes to engine BP spec 9/20/21

Vague?.
Right out of the 2010 Chevy NHRA blueprint specs.
Holley Sniper 90 mm (3.545”) Throttle Body accepted
High lighted in yellow
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Old 09-23-2021, 04:32 PM   #3
e vassar
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Default Re: NHRA changes to engine BP spec 9/20/21

So any car or truck mfd by GM from 2005 to 2010 can use the Holley T.B.?
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Old 09-23-2021, 09:50 PM   #4
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Default Re: NHRA changes to engine BP spec 9/20/21

If it uses a 90 mm TB.
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Old 09-24-2021, 01:52 AM   #5
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Default Re: NHRA changes to engine BP spec 9/20/21

And is listed in the specs
Looks like the Holley is an approved replacement part/throttle body
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Last edited by Adger Smith; 09-24-2021 at 01:54 AM. Reason: add
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Old 09-24-2021, 11:16 AM   #6
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Default Re: NHRA changes to engine BP spec 9/20/21

This is most likely so they can run a cable driven throttle body and not a drive by wire.
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Old 09-25-2021, 08:52 AM   #7
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Default Re: NHRA changes to engine BP spec 9/20/21

Quote:
Originally Posted by e vassar View Post
So any car or truck mfd by GM from 2005 to 2010 can use the Holley T.B.?
No. Only those engines where the replacement TB is allowed. It is a replacement for the OEM Bosch 12570790 TB in 2005-08 and the OEM Bosch 12605109 TB in 2010. The Holley part number is 860008-1.
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