Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

LT1 head casting number swap

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Old 03-24-2013, 12:17 PM
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Default LT1 head casting number swap

Are lt1 aluminum heads with different casting numbers interchangeable. Any help is appreciated.
Old 04-21-2013, 03:35 PM
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im on the same topic. can you put aluminum lt1 heads on a run of the mill carburated sbc 350 ???
Old 04-21-2013, 06:45 PM
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"Are lt1 aluminum heads with different casting numbers interchangeable. Any help is appreciated."

Yes.

"im on the same topic. can you put aluminum lt1 heads on a run of the mill carburated sbc 350 ???"

Not without making some major modifications. Water passages do not mate at all. It's typically not worth the effort.
Old 04-25-2013, 04:49 PM
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sweet ! thanks for the quick reply . saved me lots of seat time tryin to figure it out .



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