I'm in the process of building a 408C and need a little advice on cam selection. I've received cam grinds from Comp, Crane, Bullett, Howard's, and Lunati. All of which vary a bit. Here's the motor specs so far:
408c
CHI 228 4v heads
10.5 cr
YT 1.73 roller rockers
Crane hyd roller lifters
Wydendorf lifter bushings
Hall 4V IR Intake manifold
8x 50mm Throttle Bodies
42lb injectors
FAST EFI
Big Throat Headers/mufflers
The specs are for Hyd Roller:
Comp- fc3634f / 3636f hr112+2
Gross valve lift .612int / .622exh
Duration @.050 232int / 240exh
112 lobe sep
Crane -Hr 224/339 2s-14
Gross valve lift .586int / .609exh
Duration @ .050 224int/ 232exh
114 lobe sep
Howard's - hrs-231175-12
Gross valve lift .593int / .611exh
Duration @ .050 233int / 241exh
112 lobe sep
Bullett - fc297/301 hr112+4
Gross valve lift .636int / .636exh
Duration @ .050 240int / 245exh
112 lobe sep
Lunati - 20320711
Gross valve lift .593int / .611exh
Duration @ .050 221int / 229exh
112 lobe sep
Thanks for any input,
Toby
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