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Dave D · 07-03-2014, 02:44 AM

I installed a four inch crank into one of my 21 stud motors and can honestly say the performance increase did not offset the cost. I wouldn't do it again.

07-03-2014, 02:44 AM	#14
Dave D Senior Member Join Date: May 2010 Posts: 290	Re: Merc crank in 36LB block I installed a four inch crank into one of my 21 stud motors and can honestly say the performance increase did not offset the cost. I wouldn't do it again.