Thread: 1970 454 4 Bolt Block and #291 Square Port Heads
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Old 07-11-2008, 09:39 PM
dlv4540 dlv4540 is offline
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Default Re: 1970 454 4 Bolt Block and #291 Square Port Heads
The block is 60 over with one sleeve and the heads are stock with no porting. No heli-coils or chips and the heads don't appear to have ever been shaved.
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Dennis Vugrinovich
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