rods 3.9 versus 3.5

Started by rocketsci2001, March 14, 2014, 08:20:51 PM

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rocketsci2001

I am building a stroker engine for a discovery efi rover

I have a 4.0 block and heads, ford 255 pistons, and a 300 crank. is it just buick 215 rods or will 3.5/3.9 rods fit? same length?
thanks
Sean

mgb260