Chevrolet Other Block

I Got Old One Out And When I Put In New 1,i Hit It In Too Far Now It Wont Come Out. Would It Be Ok To Leave It In Place Or Do I Need To Take...

Heats Up--new Radiator Shuts Off And Won't Start Until Cools Off 1967 350 Sm. Block Just Had Head Gaskets Changed Also Block Was Checked...

I Have A 1999 Chevy Silverado Extended Cab 4x4 With 100,000 Miles. I Bought It Used And I Noticed That The Factory Block Heater Is Not...