Engine Rotating Kits - 4.030 in. Bore (in.) - 4.125 in. Engine Stroke (in.) - Free Shipping on Orders Over $109 at Summit Racing

Scat Modern Muscle Engine Rotating Assemblies 1-44405BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44405BI

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Engine Rotating Assemblies 1-44504BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-144504BI

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44505

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44505

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44605

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44605

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44604BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44604BI

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44504

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44504

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44605BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44605BI

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44604

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44604

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44704

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44704

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44705

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44705

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44404

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44404

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44405

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44405

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Engine Rotating Assemblies 1-44404BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, I-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-144404BI

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2025 if ordered today

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Estimated Ship Date: Jun 24, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44505BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44505BI

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44704BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44704BI

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today

Scat Modern Muscle Engine Rotating Assemblies 1-44705BI

Engine Rotating Assembly, Competition, Steel Crank, Forged Pistons, H-Beam Rods, Chevy, 421 Small Block, Kit

Part Number: SCA-1-44705BI

Not Yet Reviewed

Estimated Ship Date: Jul 2, 2025 if ordered today

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Estimated Ship Date: Jul 2, 2025 if ordered today