Street 455 cam choice

Old December 14th, 2013, 06:38 AM
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Street 455 cam choice

I am building a very low mileage (45K) 1970 455 high compression engine out of a Hearst. The engine will be driven on the street frequently, with 1 or 2 trips to a track a year. While the stock cam is fine, I was wondering if a more modern cam would improve both power and mileage. Any suggestions on the cam, and would I be able to keep the stock non-adjustable rockers and such, or would that need to be converted as well. Other info, the car is an 85 Cutlass, I will be running a fresh turbo 350 transmission (built for the torque), and, for now...the stock rear...or at least until it goes. The rear will eventually be replaced with a 3.08ish rear, type to be determined.
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Old December 14th, 2013, 06:47 AM
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Almost forgot...E-heads.

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Old December 14th, 2013, 06:52 AM
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Erson Hi Flow 1. 228/[email protected] with .504 lift.
It'll work with the stock rocker setup but seriously consider replacing the springs no matter what. It may only have 45k on it but that means its been sitting with same valves open for more time than the others and they're still 43 years old.

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Old December 21st, 2013, 06:05 PM
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mondello grind JM-20-22 (i think) was great in my low compression 66, pulled like a tugboat from any rpm
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