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LM7 5.3 head questions.

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Old 11-22-2016, 12:16 PM
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Default LM7 5.3 head questions.
Hey everyone. New to the forum. Just finished up my 5.3 cam swap and rebuild. Only to find my bank 2 head has a crack starting at the front frost plug and working its way around the manifold. Its leaking coolant. Now i have a set of 243 heads id like to use. Considering having them milled. Has anyone done this? How much did you mill them? What gasket did you run? Anyone give me a run down how to measure for correct push rod length. My cam is .227 .239 @.50 .551 .551 with a 108 sep. Thanks 😊
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Old 11-22-2016, 01:33 PM
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https://www.performancetrucks.net/fo...-heads-546581/

Thread within a thread there Kyle.

Cody
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Old 11-22-2016, 09:21 PM
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What's the head casting number that's cracked?
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Old 11-28-2016, 11:10 AM
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862 casting, which is odd. From my knowledge the 706 castings had the issues. Just my luck haha
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