Pair of 1957-1985 cast iron 350 SBC heads (GM 10239906 Castings). No specs, springs may need switched out.
3 x SBC steel 1 piece rear main seal oil pans (max stroke: 4.000 in.).
2 bags of cylinder head bolts.
5 x stamped steel SBC timing covers.
4 x polished plain stamped steel valve covers.
4 x black plain stamped steel valve covers.
5 x steel dipsticks with tubes (polished/chrome).
1 x COMP Cams 12-240-4 Xtreme Marine Camshaft SB Chevy Hydraulic Flat Tappet.
i. Camshaft Use: Marine
ii. Basic Operating RPM Range: 1,600-5,800
iii. Intake Duration at 050 inch Lift: 226
iv. Exhaust Duration at 050 inch Lift: 236
v. Duration at 050 inch Lift: 226 intake / 236 exhaust
vi. Advertised Intake Duration: 270
vii. Advertised Exhaust Duration: 286
viii. Advertised Duration: 270 intake / 286 exhaust
ix. Intake Valve Lift with Factory Rocker Arm Ratio: 0.480 in.
x. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.489 in.
xi. Valve Lift with Factory Rocker Arm Ratio: 0.480 intake / 0.489 exhaust
xii. Lobe Separation: 112 degrees
xiii. Remanufactured: No
xiv. Computer-Controlled Compatible: No
xv. Grind Number: XM270H
xvi. Valve Springs Required: Yes
Note: Seller states all the parts in this lot may not all work as one unit.