Thread: Brad Penn 20/50 in a 428CJ OK???
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Old 05-14-2012, 02:36 AM
Silversmith Silversmith is offline
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Join Date: Dec 2011
Location: York Co. Maine USA, ME
Cobra Make, Engine: ERA 427 S/C W/Holmon Moody Original Nascar build #508 Iron Block/heads (C5AE-H) Bal/Blu 427 Sideoiler; 780 Holley Dbl. Pump; 4 Speed Top Loader; AP Racing Bks; IRS; 15" Trigo pins
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I used Brad Penn 20-50w with no problems. But after talking with Lee Holman, I now use Brad Penn 40w. However, I also have cast heads & block, not alum. The 40w is old school, no modern additives/syn. of any kind.
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