Pontiac - Race The next Level

          
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Old 05-22-2003, 08:02 AM
Robert Williams's Avatar
Robert Williams Robert Williams is offline
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Going to build a 400" block with an Eagle stroker kit and 72cc Edelbrock heads. The question is what block to use, i have a 1968 GTO 400" block with the chamfers on both sides of the cylinders for the intake and exhaust valves. I have several early 70's 400" blocks with no chamfers on the cylinders. Will i gain anything by using the 68 block with the chamfers?

Robert Williams

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Old 05-22-2003, 08:02 AM
Robert Williams's Avatar
Robert Williams Robert Williams is offline
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Going to build a 400" block with an Eagle stroker kit and 72cc Edelbrock heads. The question is what block to use, i have a 1968 GTO 400" block with the chamfers on both sides of the cylinders for the intake and exhaust valves. I have several early 70's 400" blocks with no chamfers on the cylinders. Will i gain anything by using the 68 block with the chamfers?

Robert Williams

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Old 05-22-2003, 10:17 AM
Donovan Donovan is offline
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Yes. But the other blocks can be chamfered too. Just use a head gasket for a template.

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1968 Firebird Coupe
350 HO
TH350
3.23's
PS, PDB and Deluxe interior

GPE Starter MSD billet
Rodney Red Rad MSD 6a

Currently apart for suspension upgrades.

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1968 Firebird Coupe - 3665 lbs.
350 HO
Long Branch Manifolds
TH350
3.23 open BP axle
PS, PDB and Deluxe interior

GPE Starter ... Small body HEI ... 2.5" Pypes w/X-pipe ... Ruggles Qjet

14.1 @ 99.1
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