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Sportsman Race Assembly, Chev SB, 350/400 Main, 4.125" Bore, 3.875" Stroke, 6.000" Rods, 3cc Dome, 1.5, 1.5, 3mm Rings |
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Sportsman Race Assembly
Designed for the sportsman racer. Features a forged 4340 steel crank with large radii journals. Also included are 4340 steel H-beam rods with ARP fasteners, HRC forged pistons, narrowed rod and main bearings, and file fit plasma moly rings.
Part Type: Rotating Assembly
Application: Chev SB (2-Piece Rear Seal)
Deck Height: 9.025"
Main Bearing Type: 350
Bore: 4.165"
Stroke: 3.875"
Actual Cubic Inch: 422
Crankshaft: 4340 Forged Steel
Pistons: Howards ProMax Forged Pistons
Piston Dome Type/Volume: 3cc Dome Top
Compression: 14.3 w/58cc, 13.1 w/64cc, 11.4 w/76cc
Piston Pins: Included
Connecting Rods: 6.000" 4340 H-Beam (Bushed) w/ARP Capscrews
Rings: Howards Plasma Moly Racing (File Fit) Metric
Rod Bearings: Clevite (H-Series)
Main Bearings: Clevite (H-Series)
Balanced: No
Flexplate Included: No
Harmonic Balancer Included: No
Manufacturer: Competition Products
Manufacturer's Part Number: SR421C
Quantity: Sold as Kit
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