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3 Amazing LS Heads From Promaxx Get Reviewed With Real Flow Numbers

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Eric Weingartner

Flowing Promaxx Ls3 large bore, small bore, and 245cc cathedral port heads.

Edit: When I said small bore I meant 3.898bore which is 5.7. It is not for the 5.3l. Also I know 4.8 and 5.3 are same bore. Sorry for the confusion.

posted by axay6o

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