Thanks for all the responses. i brought the 400 YX block and heads to the machine shop today. heads are 6X-8's going in my 66 GTO. i want a good drivable torquey street driver i will be running a holley sniper EFI, so next question is suggestions on the right pistons and camshaft to match this setup.
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1966 GTO convertible, 2nd owner, Dad was 1st, owned 30 years
1972 TA tribute clone current project LSX/T56
Last edited by noalibi; 07-07-2021 at 07:17 PM.
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