Quote:
Originally Posted by Steve70GTO
Thanks for the info on the valve springs. The duration on the RAIV cam is really high. I am concerned about keeping the revs down in the 455.
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The RAIV camshaft/Crower 60919 is a perfectly fine street camshaft for a high compression pump gas 455 with 6x-4 heads,it doesn't need to rev high in the big 455. Also,it is a proven "FAST" street combination by Mr. Ruggles and Mr. Hand.... makes an exceptional running street 455 in this combination and still retains good street manners. I would use that cam with Rhodes lifters,Crower 68404/68405(depending on installed height) valve springs and 1.65 rockers..... easy 430-440 HP/ 500+ lb Torque with no port work with the right carb and tune-up
Brian