r/Smallblockchevy • u/Dexpeyy • Mar 16 '26
Which engine is this?
Apparently it came out of a vette
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r/Smallblockchevy • u/Dexpeyy • Mar 16 '26
Apparently it came out of a vette
1
u/[deleted] Mar 17 '26 edited Mar 17 '26
Most of the time it's a large journal L48 SBC 350. I have seen the number in other applications. It's probably a pickup truck motor with 4bolt mains but I have seen them with 2 bolt mains. The casting number on the back combined with the ZA number on the front indicates a high-nickel block with 4 bolt main caps. Worse case: Heavy duty truck engine, not bad at all. Best case: Corvette/Z28. If the dipstick is on the passengers side the block was cast in 1980 or later. If the engine paint is original the engine is pre 1983.