Thread: Ford Racing Crate Big Blocks - What oil viscosity to use?
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Old 05-04-2003, 05:12 AM
jgrice jgrice is offline
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Location: Harrison Township, MI
Cobra Make, Engine: Superformance, 460/560hp
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I have a 460 565 hp crate in my SPF.

I am using 20-50w Valvoline Racing Oil (non-synthetic).

IMO 10-30w is too light.

Jeff
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