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406" Long Block – Smeding Performance

406" Long Block

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Utilizing a big bore engine block and a medium stroke forged crankshaft, this engine loves to rev! Using only top of the line components like a fully forged rotating assembly, hydraulic roller camshaft and aluminum heads, the 406" Eliminator 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/External Balance, 3.800" Stroke
Rods: Smeding 5140 Forged Steel I-Beam with 3/8" Bolts, 5.700" Length
Pistons: JE Forged Aluminum, Reverse Dome, 10.0:1 Compression
Rings: Stainless Steel Top, Napier 2nd, Low Friction Oil, 1.2/1.2/3.0
Rocker Arms: Smeding 1/5 Ratio, Full-Roller
Cylinder Heads: Smeding Aluminum, 180 or 195cc Intake Port, 2.02”/1.60” Valves, 65cc Chambers
Warranty: 3 Year, Unlimited Miles

Cam Specs:
500hp: .510”/.521” Lift, 231°/236° Duration @ .050”, 111 LSA
540hp: .544”/.543” Lift, 236°/244° Duration @ .050”, 110 LSA

Torque Converter: 2,400-2,800rpm Stall w/ 470hp Cam, 2,600-3,000 Stall w/ 520hp 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.

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