Block: Dart Big M Sportsman, 4.500" Bore, 9.8" Deck Height
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.250" Stroke - Dual Key
Rods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.385" Length
Pistons: JE 2618 Forged Aluminum, Coated Skirts, 9.0:1 Comp w/ 120cc Chambers
Rings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16"
Warranty: 3 Year, Unlimited Miles

Camshaft Kit Includes: camshaft, hydraulic roller lifters, roller timing set, & thrust plate - Installed

Cam Specs: .614”/.614” Lift, 239°/249° Duration @ .050”, 112 LSA + 4

Sealed-Up Kit Includes: M-77HV oil pump, pick-up tube, hardened driveshaft, black timing cover & black Moroso 7qt oil pan - Installed

Torque Converter: 2,200-2,600rpm Stall 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.