® rule series ford crankshafts lunati engineers designed the nascar series cranks to ... number mga12dn stroke 3.500 main size 2.250 pin size 2.100 minimum rod length 6.000 ... hooters® cup series ford crankshafts enginekits lunati engineers designed this ... series the stroke is 3.500 with 2.00 chevy rod journals and 302 mains the leading ... number mga43dn stroke 3.500 main size 2.250 pin size 2.000 minimum rod length 6.000 ...