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77 Trans Am 400 to 455 engine swap
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10-21-2025, 04:03 PM
aladinslamp
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Join Date: Oct 2025
Posts: 2
I have heard the motor is most likely 7.6=8.0 compression on the 400will the 400 6X8 heads on the 455 result in around 9-1 compression
whats a good cam option with that without going for MAX a good street option? thax
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