Availability
2017 Engine Kits & Rotating Assemblies
Pro LS 4340 Rotating Assembly, 364 Cid., 4.000 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R583600012
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R583600512
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS Rotating Assembly, 370 Cid., 4.030 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R58360302
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS 4340 Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 58x, 6.098 rod, 12cc dish, 9.8:1 @ 65cc, 9.3:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R583604012
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS Rotating Assembly, 371 Cid., 4.040 bore, 3.622 stroke, 58x, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R58360402
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS 4340 Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.098 rod,12cc dish, 9.6:1 @ 65cc, 9.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R243600512
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS Rotating Assembly, 365 Cid., 4.005 bore, 3.622 stroke, 24X, 6.098 rod, 2cc Flat Top, 10.8:1 @ 65cc, 10.2:1 @ 70cc, File-Fit Rings, H Bearings
Part Number: SUM-R24360052
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pro LS Piston and Rod Kit, 371 Cid., 4.040 bore, 3.622 stroke, 6.098 rod, 2cc Flat Top, 10.9:1 @ 65cc, 10.3:1 @ 70cc, File-Fit Rings
Part Number: SUM-PR360402
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
TOP END REPAIR KIT
Part Number: NTI-NA-10027-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NA-10090K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 66.370mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-CKA
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 89.98mm Bore, 9.90 to 1 Compression Ratio, for use on Honda®, Kit
Part Number: NTI-NA-10043-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit
Part Number: NTI-NX-40025-BKA
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70020-BK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70020-CK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70020K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70005-BK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40005-2K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-70007-BK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Repair Kit, Top End, 89.96mm Bore, 11.30 to 1 Compression Ratio, Arctic Cat, Kawasaki, Suzuki, Kit
Part Number: NTI-NA-30002K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40009-CK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
TOP END REPAIR KIT
Part Number: NTI-NX-40085-CK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-50012-BK
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-80005K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT
Part Number: NTI-NA-10012-4K
Not Yet Reviewed
Estimated Ship Date: Feb 25, 2026 if ordered today
Estimated Ship Date: Feb 25, 2026 if ordered today
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