406" Short Block

Block: Smeding Heavy Duty 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal/External Balance, 3.800" Stroke
Rods: Smeding 5140 Forged Steel I-Beam with 3/8" Bolts, 5.700" Length
Pistons: JE Custom 2618 Forged Aluminum, 18cc Dish, Coated Skirts
Rings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0
Compression Ratio: 10.0:1 w/ 64cc Heads, 9.3:1 w/ 72cc Heads
Warranty: 3 Year, Unlimited Miles

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

Cam Specs:
440hp: .495”/.502” Lift, 220°/224° Duration @ .050”, 112 LSA
500hp: .510”/.521” Lift, 231°/236° Duration @ .050”, 111 LSA
540hp: .544”/.543” Lift, 236°/244° Duration @ .050”, 110 LSA
550hp: .549”/.546” Lift, 242°/250° Duration @ .050”, 110 LSA

Sealed-Up Kit includes oil pump, welded pump pick-up, hardened driveshaft, black timing cover & black oil pan—Installed

Torque Converter: 1,800-2,000rpm Stall w/ 440hp Cam, 2,000-2,400 Stall w/ 500hp Cam, 2,400-2,600 Stall w/ 540hp Cam & 2,600-3,000 Stall w/ 550hp 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.