this code was the one stamped on the block in front of the passenger side head. the code is C7A103588...there was another beside it 12UTB7. can anyone tell me if that means it is a 350 or a 305 and year model the engine is?
__________________ 95z28 A4, stock 3.23 gears, pacesetter longtubes, ory, Dynomax bullet(turned down), k&n cold air intake, 160* t-stat, tb bypass, 5% tint, chrome zr1 wheels (17x9.5, 17x11) sumitomo tires, silver face gauges, billet grill, slp manual fan switch, i guess thats it. the name's Corey btw. Impetuously saving
you need the casting number on the back of the engine. those numbers there dont mean much. just where and when i was made. the casting number will tell you more
chevy block suffix code help??? 
