CNC-Motorsports offers an endless variety of Big Block Chevy 604-632 rotating assembly kits. We offer everything from mild pump gas piston kits to wild fully forged rotating assembly kits to meet your racing needs. We offer quality name brands such as; Eagle, Scat, Callies, Lunati, Crower, JE/SRP, Diamond, Mahle, CP, Keith Black, and Manley to name a few. CNC-Motorsports can customize any stroker kit to meet your specific needs. All balanced rotating assembly kits are completed in house by CNC-Motorsports. If you don’t see the BBC kit you're wanting feel free to call or email our experienced staff today.
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CS-5902-JE PART NUMBER
Compstar BB Chevy 632 Rotating Assembly 10.41 JE Pistons$3,435.95
BB Chevy 604 612 621 632 634 638 Rotating Kit, Compstar Crankshaft 4.750, Compstar H Beam Rods 6.700", H Series Bearings, JE Pistons -5cc Flat Top, Total Seal Rings, 2 Piece Rear Main Seal
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CS-5903-JE PART NUMBER
Compstar BB Chevy 632 Rotating Assembly 15.0 JE Pistons$3,435.95
BB Chevy 604 612 621 632 638 rotating Kit, Compstar Crankshaft 4.750, Compstar H Beam Rods 6.700", H Series Bearings, JE Pistons +40cc Dome, File Fit Rings, 2 Piece Rear Main Seal,
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CS-5904-JE PART NUMBER
Compstar BB Chevy 632 Rotating Assembly 13.8:1 Nitrous JE Pistons$3,795.95
BB Chevy 604 612 621 632 638 Stroker Kit, Compstar Crankshaft 4.750, Compstar H Beam Rods 6.700", H Series Bearings, JE Pistons +29.5cc Nitrous Dome, File Fit Rings, 2 Piece Rear Main Seal
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CS-5905-JE PART NUMBER
Compstar BB Chevy 632 Rotating Assembly, Head Hunter 13.8:1 Nitrous JE Pistons$3,816.95
BB Chevy 604 612 621 632 638 Stroker Kit, Compstar Crankshaft 4.750, Compstar H Beam Rods 6.700", H Series Bearings, JE Pistons +29.5cc Nitrous Dome, File Fit Rings, 2 Piece Rear Main Seal, Fits Head Hunter Heads
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CS-5906-JE PART NUMBER
Compstar BB Chevy 632 Rotating Assembly 16.2:1 JE Pistons - Gas Ported$3,795.95
BB Chevy 604 612 621 632 638 Rotating Kit, Compstar Crankshaft 4.750, Compstar H Beam Rods 6.700", H Series Bearings, JE Pistons +46cc Dome, Gas Ported, File Fit Rings, 2 Piece Rear Main Seal
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CNC-6041-MRJE PART NUMBER
BB Chevy 604/638 Balanced Rotating Assembly 15.2:1 JE FSR Dome Pistons, Molnar$3,899.95
Big Block Chevy 604 612 621 632 634 638 Stroker Kit, Molnar Crankshaft 4.750, Molnar H Beam Rods 6.700, H Series Rod and Main Bearings, JE +42cc FSR Gas Ported Dome Pistons & Rings, 2 Piece Rear Main Seal, Balanced Assembly
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CNC-6042-MRJE PART NUMBER
BB Chevy 604/638 Balanced Rotating Assembly 16.4:1 JE FSR Dome Pistons, Molnar$3,899.95
Big Block Chevy 604 612 621 632 634 638 Stroker Kit, Molnar Crankshaft 4.750, Molnar H Beam Rods 6.700, H Series Rod and Main Bearings, JE +49cc FSR Gas Ported Dome Pistons & Rings, 2 Piece Rear Main Seal, Balanced Assembly
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LUN-6043-MRJE PART NUMBER
BB Chevy 604/638 Balanced Rotating Assembly 10.2:1 JE Flat Top Pistons, Molnar$3,600.95
Big Block Chevy 604 612 621 632 634 638 Stroker Kit, Molnar Crankshaft 4.750, Molnar H Beam Rods 6.700, H Series Rod and Main Bearings, JE -3cc Flat top Pistons & Rings, 2 Piece Rear Main Seal, Balanced Assembly
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CNC-6044-MRJE PART NUMBER
BB Chevy 604/638 Balanced Rotating Assembly 15.0:1 JE Dome Pistons, Molnar$3,550.95
Big Block Chevy 604 612 621 632 634 638 Stroker Kit, Molnar Crankshaft 4.750, Molnar H Beam Rods 6.700, H Series Rod and Main Bearings, JE +40cc Dome Pistons & Rings, 2 Piece Rear Main Seal, Balanced Assembly
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CNC-6045-MRJE PART NUMBER
BB Chevy 632/638 Balanced Rotating Assembly 13.8:1 JE Dome Nitrous Pistons, Molnar$3,899.95
Big Block Chevy 632 638 Nitrous Stroker Kit, Molnar Crankshaft 4.750, Molnar H Beam Rods 6.700, H Series Rod and Main Bearings, JE +29.9cc Nitrous Dome Pistons & Rings, 2 Piece Rear Main Seal, Balanced Assembly
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