4-bolt block,G.M. forged steel crank,Manley 6.535 H-Beam rods,JE 13-1 dome open chamber pistons,plasma rings,all balanced.coated bearings.All machine work on block is new .Bore & hone w/plate,line hone,decked....This a short block only but I have heads,cam,etc. to finish if you want .............$1750..........580-591-1947.........Victor @ Penrod Racing Services