NHRA changes to engine BP spec 9/20/21

e vassar · 09-22-2021, 04:15 PM

G.M. 05-10 Added replacement throttle body
seems a little vauge

Adger Smith · 09-23-2021, 08:10 AM

Vague?.
Right out of the 2010 Chevy NHRA blueprint specs.
Holley Sniper 90 mm (3.545”) Throttle Body accepted
High lighted in yellow

e vassar · 09-23-2021, 04:32 PM

So any car or truck mfd by GM from 2005 to 2010 can use the Holley T.B.?

Dyno · 09-23-2021, 09:50 PM

If it uses a 90 mm TB.

Adger Smith · 09-24-2021, 01:52 AM

And is listed in the specs
Looks like the Holley is an approved replacement part/throttle body

Rat Raceway · 09-24-2021, 11:16 AM

This is most likely so they can run a cable driven throttle body and not a drive by wire.

Dwight Southerland · 09-25-2021, 08:52 AM

Quote:

Originally Posted by e vassar

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.

09-22-2021, 04:15 PM	#1
e vassar Member Join Date: Jul 2015 Posts: 374 Likes: 64 Liked 259 Times in 103 Posts	NHRA changes to engine BP spec 9/20/21 G.M. 05-10 Added replacement throttle body seems a little vauge

09-23-2021, 08:10 AM	#2
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	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 __________________ Adger Smith (Former SS)

09-23-2021, 04:32 PM	#3
e vassar Member Join Date: Jul 2015 Posts: 374 Likes: 64 Liked 259 Times in 103 Posts	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.?

09-23-2021, 09:50 PM	#4
Dyno Senior Member Join Date: Dec 2002 Posts: 905 Likes: 1,095 Liked 659 Times in 196 Posts	Re: NHRA changes to engine BP spec 9/20/21 If it uses a 90 mm TB.

09-24-2021, 01:52 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	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 __________________ Adger Smith (Former SS) Last edited by Adger Smith; 09-24-2021 at 01:54 AM. Reason: add

09-24-2021, 11:16 AM	#6
Rat Raceway Member Join Date: Nov 2012 Location: Denver Co Posts: 408 Likes: 282 Liked 35 Times in 17 Posts	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. __________________ Ross Gregory 5133 Stock,Super Stock 53 Top Dragster