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I see LS engines get close need a mopar to show them up. Very risky on the block but some hard block should help.

How much power are you going for the 3rd Gen Hemi have made 700HP NA. The LS engine have there limits must don't uses stock blocks they use the LSX block the stock ALum block can't handle much power the the LQ "stock Iron truck block" has its limits too. We do have a Alum. block out for the 3rd gen hemi if the stock block can't handle your goals and the new apache head is a great head and guys are just starting to dig into it.