Quote:
Originally Posted by monsters5vz
I vote for 5vz all the way, 3vz has head problems that was fixed in the 5vz and for those that think the 5vz cant rev up to 8000 rpm you just need to regrind the cam profie, springs retainers rods pistons etc, There are guys in arizona racing them in the desert making over 600hp.
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I agree on the power and rev'ability but the 3vz-FE did not have the nasty head problems that the 3vz-E did...and the 3vz-E only had head problems because of cam/header design....stupid stupid toyota...