Need oval port aluminum manifolds single or dual plane but matching (2). 2 sets of .030 - .060. or .120 pistons with compression around 10 to 1 with .049 heads. 2 camshafts and lifters for 2,000 to 6,000 RPM range. 2 sets of ratio roller rockers 1.7 preferably. 1 454 steel crank (NO CAST PLEASE) with damper .010-.010 is OK. Roller timing chain sets in good condition (2). Engines are std. 1983 454's. I have all the Mercruiser coolers and hoses for a Scarab I'm not using. Remote oil filter mounts and hoses for Mercruisers also. IF YOU ONLY HAVE ONE OF WHAT I NEED LET ME KNOW, OTHERS MAY HAVE MORE I NEED.