Don't waste money on any engine parts till you've dissembled the one you have. Measure every bore-size, piston ring end gaps, valve guide clearance, crankshaft, inspect bearings for unusual wear, camshaft lobes, lifters, push-rods, valve springs and rocker arms. Unless you have designated measuring instruments and a complete knowledge around a small block Chevrolet an overhaul kit is worthless. Lean toward a complete - new #12499529 motor from your Chevrolet dealer -or field strip yours and have it professionally done an an engine shop.
Interiors aren't my game.
