This 427ci/390 HP engine is a diamond in the rough but can complete your numbers matching Corvette, COPO Camaro, or full size Chevrolet rebuild.
-Engine assembly code: T0314LC. -Block casting number: 3963512.
-Cyl Heads: 3931063 (date code: B18 9 & C10 9).
-Oval Port, High Rise Intake: GM3931067, date code: B21 9)
Water pump and starter recently replaced. I took it to a reputable engine shop to have it checked out.
-Compression 180, 185, 185, 185, 185, 180,175, 180.
-Oil pressure 50psi at start up, no leaks.
Their opinion is it just needs some TLC to bring horsepower and torque back to specifications. Hot Rodders, this -512 block is highly sought after because it's among the thickest blocks around, allowing it to be be over-bored, if desired.
Above Added: Thu September 22, 2016, 10:13 pm EST
Chevy 427 cubic inch, 390 horsepower big block engine (L36). Dyno'd by local engine shop. Good oil pressure and compression. Recommended retuning with new carb & electronics to return HP/TQ to specifications. (Casting number 396512 for a Matching Numbers Corvette or full-size Chevrolet. Block & heads date coded March 1969.)