This 1975 Pontiac 455 Engine Block has a .030 overbore.
It should bolt into any 1965 - 1980 Pontiac Tempest, Lemans, GTO, Firebird, Trans Am, Grand Prix, Etc.
It’s in good shape, stored in a garage and has no cracks.

Here are the specs:
Unit Number: 0348651
Block casting number: 485428 
Stamped 75 (Model year)
Block Code: YW
B245 Casting date B = February, 24=24th day, 5=1975
Circle with dots Time cast = 4pm
Foundry casting line: 9
Block ID Casting Numbers Driver’s Side: 455 = 455
Block ID Casting Numbers Passenger’s Side: 455 = 455
.030’’ Overbore

The 485428 casting was used for 1971-1974 455 and is the most common production block. This one is dated 1975.

The item pictured is the item you’ll receive.

The engine stand is not included. Engine block only.

This is local pick up only.