Identify pistons and rods

SketchyPete

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Hi All,

Working on my mystery box. The engine appears to have been rebuilt. ARP 2000 rod bolts which I assume are not stock and these pistons do no appear to be stock.

They numbers cast on them, 376ad and 103L37. I tried to Google these and seem to get conflicting results. They may be Mopar power pak pistons, I'm not sure.

The rods I'm not sure of either, they don't look like pics of stock rods I've seen before, but they also do not seem to be obviously aftermarket.

Any thoughts appreciated.
 

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MoparMap

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What year was this supposed to be again? The rods look like stock style rods to my eyes. They have a powdered metal cracked cap appearance as best I can tell, which I think is only really typical in stock pieces. Most aftermarket stuff would likely be forged. Pistons are harder to tell without having them out of the engine I'm guessing. I believe the gen 4 stuff shared parts with the 3g Hemi, so Mopar pistons could make some sense there if it was a gen 4. I think I have the rods and pistons I cooked on my car when the bearing spun sitting around in the garage. I can try to take a look and grab some pictures to see how they line up maybe.
 

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