comparing bottom ends...

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Junior Member
im doing a head swap on my y7(stock motor) to a y8. what is the difference on the bottom end of these motors if any? do i need to worry about overall motor life when doing this swap? let it be known that i am not going for 400 at the wheel here...i just want to make it go a LITTLE bit more than it does intake, header-back, and possibly a cam down the road. drop the knowledge.