427 10.3:1 vs 408 11.5:1

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01-12-2019, 08:52 AM

fastlt1

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427 10.3:1 vs 408 11.5:1

Same heads. NA and nitrous. Drag racing. Which one and why

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01-12-2019, 10:06 AM

Mavn

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427 with 12:1

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01-12-2019, 10:12 AM

99 Black Bird T/A

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Quote:

Originally Posted by fastlt1

Same heads. NA and nitrous. Drag racing. Which one and why

More cubes and more compression are good combination for NA drag racing. 427 and 12 to 1, sounds a good plan.

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01-12-2019, 10:22 AM

01CamaroSSTx

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What heads and what fuel? But hands down the 427 with 12:1 will make more power N/A than the others.

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01-12-2019, 11:05 AM

KCS

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Quote:

Originally Posted by fastlt1

Same heads. NA and nitrous. Drag racing. Which one and why

With limited details, I would probably go with the 427 and the lower compression. The 4.125” bore in the 427 would likely be able to fit a better head and the lower compression will be a little safer with a given shot of nitrous and fuel.

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01-12-2019, 11:56 AM

Darth_V8r

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Either way take the cubic inches

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