"559" CASTING SB2 GM HEADS CNC PORTED. 38CC CHAMBERS, 276 RUNNERS, 2.15 INT. 1.625 EXH. TITANIUM VALVES, SUPER 7 RETAINERS, NEW DOUBLE SPRINGS GOOD TO .750 LIFT. JESEL PRO SERIES INTAKE ROCKERS AND STANDS FOR ALL ROCKERS. I DONT HAVE EXHAUST ROCKERS. NEW CONDITION. ALSO INCLUDED A SET OF SMITH BROS. PUSHRODS FOR THE HEADS..THESE HEADS SHOULD FLOW IN THE 380-90 CFM RANGE.

i'm asking 2200$ for them its what i got into them.they do take special parts,intake,headers,intake valley,pistons,lifters these heads are almost the same type that nascar uses..they should make over 800hp on pump gas.