4.25 stroke cranksaft ?

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Re: 4.25 stroke cranksaft ? [Re: Streetwize] #169928 12/18/08 02:51 PM 12/18/08 02:51 PM
Joined: Mar 2005 Posts: 3,144 Central NC gch OP master
gch OP master Joined: Mar 2005 Posts: 3,144 Central NC	Quote: George...yes you can but typically you need to either relieve the Pump pick up and quite a bit of the pick-up boss...roughly .050 more than with a 4.15 crank. It often makes sense to offset drill the factory pump boss to allow more room or just use a 3/8 pick up to start. the 4.25/2.200 fits in there with LESS work that a 4.15/2.375....that plus the more cubes and lighter bob is a big reason why it has become so popular. As for the crank itself, you could do like I did and find a good used 4.15" 2.375 Crank with a wasted rod journal and offset grind it to 4.25 or up to 4.315. Thanks Bobby.I'm trying to put something together with the rods and pistons I have.It may be more trouble than it's worth.

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