1978 Chevrolet Pro Street Pick Up Truck 383 Ci Small Block Chevrolet Motor. Heads Are 202 Camel Double Hump Heads With 202-194 Roller Rocker Competition Valve Assembly,a Scat Crank,5.7 Rods,60 Over Bore,9 1/2 To 1 Compression,high Lift Cam,trans Has ...