[doorslammer71]

I believe it to be a 360hp motor (1970 spec) because of the 64cc cylinder heads. I think the 71-72 LT1 had a 76cc head (casting #487 is the most likely). As far as the 360hp/370hp goes, 1970 LT1 'vette or Z28 motor were identical except for accessory drive, water pump, exhaust manifolds and oil pan/windage tray. This motor has a Z28 type pan but could easily be exchanged for a 'vette pan. Obviously, I did a little research into this motor before I bought it. It has screw in studs, quide plates, solid camshaft, big damper, steel crank, etc. With the intake & VC off, I used as many external identifiers as possible. If any one has questions or would like pics, please feel free to contact me. thanks, JJ