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Old 05-04-2011, 01:55 AM
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Thrall Thrall is offline
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Join Date: Jul 2004
Boat: '06 X2 MCX
Location: Eagle River, AK!
Posts: 3,783
Unless it's a rare? (not sure if they were even offered) big block, it's a 5.7L Chevy TBI or LT-1. TBI looks like a truck motor, LT-1 is a Corvette engine, says Corvette.
Either way 15W-40 and a Napa/WWix 1069 filter for either small block. ATF in the trans, don't remember if it was Dexron III or type F, but the trans aren't too finicky.

FWIW, I used 10W40 most of the time in my LT1 with no issues. More important how often you service the engine/trans than brand or oil weight IMO.
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