Summit Racing Engines & Components

Chevy LS 4340 Forged Steel Crankshaft, 4.000 stroke, 24X Reluctor, Lightened, Nitride Hardened, Narrowed Rod Bearings Req.

Part Number: SUM-180LS400024

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/5/2026

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Camshaft, Duramax Pro 1 Cam, 184/187 Duration @.050 in., 105.5 LSA, +2 advanced., Intake .389/Exhaust .392 Lift, Revised Firing Order, Each

Part Number: SUM-9001R1

Not Yet Reviewed

Estimated Ship Date: Monday 1/5/2026

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Mockup Block, Cummins 4BT, Long Block, Steel, Includes bolts, Each

Part Number: SUM-774006

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Estimated Ship Date: Monday 1/5/2026

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Camshaft, Duramax Pro 2 Cam, 187/189 Duration @.050 in., 106.5 LSA, +2 advanced, Intake .389/Exhaust .392 Lift, Revised Firing Order, Each

Part Number: SUM-9002R1

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Estimated Ship Date: Monday 1/5/2026

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Camshaft, Duramax Pro 3 Cam, 190/193 Duration @.050 in., 108.5 LSA, +2 advanced, Intake .389/Exhaust .392 Lift, Revised Firing Order, Each

Part Number: SUM-9003R1

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Estimated Ship Date: Monday 1/5/2026

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