Old six cylinder stuff

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Termite_Delight

Full Access Member
Joined
Feb 17, 2018
Posts
677
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1,286
Location
Lanark Ontario Canada
First Name
Andy
Truck Year
1975
Truck Model
K2500
Engine Size
5.3 L33, 4l80e, NP241c
Not compatible. gmc engines had machined bearings and full pressure oil systems, unlike Chevy of the era, they had Babbitt bearings still.
1953 Chevrolet and newer 235 & 261 had full pressure, pre '53 194, 207, 216, 224, 235 were babbit.
 

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