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Discussion Starter · #1 ·
Just got my first Buick last week and I just started to teardown the eng. and I pulled the oil pan off w/the motor in the car. I have 5 rods with "SPS" stamped on the capscrews and one with a "U" stamped on it. Are the sps stock or both? I thought sps was aftermarket.By the way the knock was #1 and #4 rod bearings spun,rod journals look ok to turn.Mains looked real good. It does have the rolled fillets. GM std. bearings. The pistons say "hepolite 21422" are these the original GM ? Also my car is the maroon metallic color w/ blackout trim , is this
color one of the rarer colors?
Thanks for any input.
 
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