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View Full Version : 409 piston size?



dkripper911
10-02-2008, 08:57 PM
i need no know the piston size and compretion raito for a 409 bore i need a new piston and i cant find it any were HELP!!!!!!

smorris1
10-02-2008, 09:02 PM
never heard of a 409. There is only a 406, 416, 426, 440 or 460 stroker. There is no way of anybody knowing the compression ratio. Its either stock, 10:1, 11:1 or 12:1.

10-02-2008, 09:31 PM
stock is i think between 100 and 125 to be in spec.