Quote:
Originally Posted by AG
What's the max lift your heads can accomodate?
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The engine shop did check,,, they said they might have to take just a little off the valve guide so the retainer doesn’t hit the seals for a .577 lift but it will work. It had .530 lift with the previous hft and cleared. On the head flow #’s the exhaust had peak flow at .600 lift. The intake only showed to .550 lift. The cam I will be using has .580 on the intake, .575 on the exhaust using my 1.60 rockers.
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72 lemans,455 e-head, UD 255/263 solid flat,3.73 gears,,,10" 4400 converter,, 6.68 at 101.8 mph,,1.44 60 ft.2007
(cam 271/278 roller)9"CC.4.11gear 6.41 at 106.32 mph 1.42 60 ft.(2009) SOLD,SOLD
1970 GTO 455 4 speed #matching,, 3.31 posi.Stock manifolds. # 64 heads.A factory mint tuquoise ,69' judge stripe car. 8.45 @ 88.1 mph on slippery street tires.Bad 2.19 60ft.Owned since 86'
Last edited by scott70; 01-24-2026 at 02:32 AM.
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