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post #1 of 3 (permalink) Old 03-14-18, 08:14 AM Thread Starter
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4.0L SOHC Heads.

Hello everyone. I was wondering, are the 4.0L SOHC heads aluminum or cast-iron? I'd like to get one for a build I'm doing but just thought I would find out before hand. Thanks for your time

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post #2 of 3 (permalink) Old 03-14-18, 08:19 AM
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I believe they are aluminum.

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post #3 of 3 (permalink) Old 03-15-18, 04:00 PM
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Re: 4.0L SOHC Heads.

Went looking, only thing I can find is that there were at least 2 different castings, one of them is 1L2E and the other(s) is\are not compatible.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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