On 2005-01-22 21:59, crankshaft wrote:
a 351M is a 400,the 351W crank has a 3.500 stroke the 400/351M is 4.000 stroke 351M stroke is 1/2 inch longer than a 351W mains and rod journals are the same 2.310 on the rods and 3.000 on the mains
If I read that right, you are saying that the 351M and 400 are both 4.000" stroke, correct? WRONG. 351M 3.5" stroke. 400 4.000" stroke, both use 4.002" bore but the 400 uses different pistons...same rods as 351M (6.58&quot
the 351W and 351M have exactly the same bore/stroke dimensions. The W has shorter rods and a much shorter deck (9.5" vs. 10.22&quot
The main journals are both 3" dia.
Also, if you are using a 351M crank in a 351W block, it will be 363 cubic inches. Use a 400 (4.000" stroke) crank and it'll be 415". I don't think I'd trust a ground-down cast crank in a turbocharged motor. Been there, done that....learned a few expensive lessons along the way!
<font size=-1>[ This Message was edited by: mavman on 1/25/05 8:37am ]</font>
<font size=-1>[ This Message was edited by: mavman on 1/25/05 8:40am ]</font>