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Old 11-18-2021, 07:45 PM   #106
Efi69Cam
 
Drives: 2016 Camaro SS 2017 Yukon Denali
Join Date: Jan 2020
Location: Colorado
Posts: 116
Quote:
Originally Posted by redcoats1976 View Post
lets see...400 c.i.,hand assembled motor by master mechanic,GTO judge carb and intake,healthy cam,worked turbo 400 trans,headers,duals.did i mention i spanked my share of GTOs with this car?only problem was 8 mpg...i did leave the 326 badges on the fenders though.
GTO was a 15 sec car on a good day. Stock ls1 4th gens ran low 13s all day long.

Chances are your 6th gen v6 would put the hurt on your old car.

I owned my share of Pontiac and Chevy 400+ cid motors, including a RA IV headed 428 in a 69 Firebird and while I look back fondly on it, I know it would have had a hard time with a ls1 4th gen.
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