LS Camshafts – NOW IN STOCK!

427" Short Block – Smeding Performance

427" Short Block


Block: New Heavy Duty w/ Billet 4 Bolt Mains, 9.500" Deck Height, 4.125" Bore
Crankshaft: 4340 Forged Steel, Internal Balance, 4.000" Stroke
Rods: 4340 Forged Steel H-Beam with 7/16" Bolts, 6.200" Length
Pistons: Custom Forged Aluminum, Reverse Dome, 10.2:1 Compression w/ 58cc Heads
Rings: Plasma-Moly Top, Low Friction Oil, 1/16" x 1/16" x 3/16"

Camshaft Kit includes camshaft, hydraulic roller lifters, roller timing set, thrust plate, lifter dog bones & spring tray.

Cam Specs:
460hp: .508”/.532” Lift, 222°/232° Duration @ .050”, 112 LSA
560hp: .544”/.573” Lift, 238°/248° Duration @ .050”, 112 LSA
600hp: .568”/.580” Lift, 242°/248° Duration @ .050”, 112 LSA

Sealed-Up Kit includes, oil pump, pump pick-up, hardened driveshaft, timing cover & oil pan.

Torque Converter: 2,000-2,200rpm Stall w/ 460hp Cam, 2,400-2,600 Stall w/ 560hp Cam, 2,600-3,000 Stall w/ 600hp Cam Recommended

Final assembly & tuning of this partial engine must be completed by an experienced engine assembler/builder. Smeding Performance is not responsible for damaged caused by user installed parts.

All of our engine packages are extremely flexible and can be customized! If there is an option you would like and do not see, please call us at 210-446-0960.

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