10 - 454 cu in / 7.4 l Chevrolet / GM V-8 gasoline engines. Which do you need for your boat, bus, RV, hot rod or truck ? All Mark IV blocks with mechanical fuel pump mounting pads 5 - 4 bolt main blocks, 5 - 2 bolt main blocks Block Castings 14015445, 861959, 3999289 Some original bore, others .020 and .030 over - see list in last photo Suitable for Chris-Craft, Volvo, MerCruiser, Crusader, etc. as well as trucks, RVs, buses, or hot rods. Blocks, crankshafts, camshafts, pistons & rods, manifolds, oil pans, cylinder heads, bell housings, starters, etc. - all parts needed to rebuild. Email your needs or to arrange a visit and we will match with what we have.