Quote:
Originally Posted by LMH
I like the 393 kit better for a production block. Less piston speed and better rod angle = better RPM potential.
Larry
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Since the 393 uses a windor rod of just under 6" and the 408 uses the 360 Dodge rod that is 6.2" the rod ratio of these two are almost identical at about 1.55.
The 4.10 stroke with a 6.2" rod drops the rod ratio to 1.51.
With the windsors 3" mains, some claim it should be limited to 6500 rpm anyway due to the oiling issue. Others claim it can still turn 8000 rpm if the
oil pressue stays above 60 psi. If only I new the trueth!