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Forged Race Assemblies
These complete kits feature Mahle PowerPak pistons with anti-friction coating. They include a forged 4340 steel crankshaft and Competition Series I-Beam connecting rods with ARP2000 fasteners. The rings supplied by Mahle, are a low-drag plasma moly metric set. Finishing these assemblies are King's HP-Series rod and main bearings. All at an unbeatable price.
• Mahle PowerPak Forged Pistons
Grafal Anti-Friction Coating on Skirts
Phosphate Coating on Exterior & Pin Bores
• Mahle Plasma Moly Low Drag Metric Rings
• 4340 Forged Steel Crankshaft
• 4340 Competition Series I-Beam rods w/ARP2000 cap screws
• King HP Series rod & main bearings
Part Type: Rotating Assembly
Application: Chevrolet Small Block 421, 2-Piece Rear Seal
Deck Height: 9.025"
Main Bearing Type: 350
Bore: 4.155"
Stroke: 3.875"
Actual Cubic Inch: 422
Crankshaft: 4340 Forged Steel
Pistons: Mahle PowerPak Forged Pistons
Piston Dome Type/Volume: 4cc Dome
Compression: 14.7 w/58cc, 13.5 w/64cc, 12.5 w/70cc
Piston Pins: Included
Connecting Rods: 6.000" 4340 I-Beam (Bushed) w/ARP2000 Capscrews
Rings: Mahle Low Drag Plasma Moly Metric Rings
Rod Bearings: King HP Series
Main Bearings: King HP Series
Balanced: No
Flexplate Included: No
Harmonic Balancer Included: No
Manufacturer: Competition Products
Manufacturer's Part Number: RA421D
Quantity: Sold as Kit |