427" Mighty Mouse 560hp – Smeding Performance

427" Mighty Mouse 560hp


Equipped with a 4.125" big bore engine block and a 4.000" stroke forged crankshaft, this engine packs a punch! Using only top of the line components like a fully forged rotating assembly, hydraulic roller camshaft and aluminum heads, the 427" Mighty Mouse is the engine your car needs. Check out our custom options and packages below to find your perfect combination!

Block: Dart SHP 4 Bolt Mains, 9.025" Deck Height, 1 Piece Seal, 4.125" Bore
Crankshaft: Smeding 4340 Forged Steel, Internal Balance, 4.000" Stroke
Rods: Molnar 4340 Forged Steel H-Beam with 7/16" Bolts, 6.000" Length
Pistons: Icon Premium 2618 Forged Aluminum, 10.7:1 Compression, Coated Skirts
Rings: Plasma-Moly Top, Low Friction Oil, 1/16” x 1/16” x 3/16”
Camshaft: Smeding Hydraulic Roller, .548”/.545” Lift, 242°/250° Duration @ .050”
Rocker Arms: Smeding 1.5 Ratio, 3/8" Stud, Full-Roller
Intake: Holley Strip Dominator Single Plane
Cylinder Heads: Smeding Aluminum, 210cc Intake Port, 2.08"/1.60" Valves, 65cc Chambers
Warranty: 3 Year, Unlimited Miles

Torque Converter: 2,600-3,000 Stall Recommended

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