Block: Dart Big M Sportsman, 4.500" Bore, 9.800" Deck Height
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.250" Stroke
Rods: Smeding 4340 Forged Steel H-Beam with 7/16" Bolts, 6.385" Length
Pistons: Icon 4032 Forged Aluminum, 10.0:1 Compression, Coated Skirts
Rings: Plasma-Moly Top, Std Friction Oil, 1/16" x 1/16" x 3/16" 
Rocker Arms: Scorpion 1.7 Ratio, 7/16" Stud, Full-Roller
Cylinder Heads: Smeding 315cc Intake Port, 2.30"/1.88" Valves, 120cc Chambers
Warranty: 3 Year, Unlimited Miles

Cam Specs:
620hp: .614"/.614" Lift, 239°/249° Duration @ .050", 112 LSA
700hp: .614"/.614" Lift, 253°/263° Duration @ .050", 110 LSA

Torque Converter: 2,200-2,600rpm Stall w/ 620hp Cam, 2,600-3,000rpm Stall w/ 700hp 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.