Engines & Components

ZR 4 1.500 TI EX VALVE 1/4 STEM

Part Number: JRC-ZRC-4200

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ZR 4 1.550 TI EX VALVE 1/4 STEM

Part Number: JRC-ZRC-4202

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ZR 4 1.750 TI INT VALVE 1/4 STEM

Part Number: JRC-ZRC-4205

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ZR 4 1.875 TI INT VALVE 1/4 STEM

Part Number: JRC-ZRC-4210

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ZR 4 CAMSHAFT 127

Part Number: JRC-ZRC-4ZR127

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ZR 4 CAMSHAFT 128

Part Number: JRC-ZRC-4ZR128

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ZR 4 CAMSHAFT 131

Part Number: JRC-ZRC-4ZR131

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ZR 2/3 CAMSHAFT 121

Part Number: JRC-ZRC-5ZR121

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ZR 2/3 CAMSHAFT 123

Part Number: JRC-ZRC-5ZR123

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ZR 2/3 CAMSHAFT 125

Part Number: JRC-ZRC-5ZR125

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ZR4 HEAD JR .530 DEEP CHAMBER

Part Number: JRC-ZRC-2510

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ZR4 HEAD JR .580 DEEP CHAMBER

Part Number: JRC-ZRC-2515

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ZR 1.100 HEAD 5/16 STEM LIFTERS

Part Number: JRC-ZRC-4000

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VALVE LOCKS

Part Number: JRC-588-GP642-2

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1.250 EXHAUST VALVE

Part Number: JRC-651-62091804

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Connecting Rod, ARC Stroker, I-beam, T-651 Billet Aluminum, Polished, 4.275 in, Jr Dragster Engines Only, Each

Part Number: JRC-685-6373

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 2, 2025 if ordered today

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STOCK STROKE ROD BOLTS

Part Number: JRC-685-6380

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400 CRANK ( 2.837 )

Part Number: JRC-700-2000

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26 TOOTH CRANK GEAR

Part Number: JRC-700-9000

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Connecting Rod, ARC Stroker, I-beam, T-651 Billet Aluminum, Polished, 4.425 in, Jr Dragster Engines Only, Each

Part Number: JRC-685-6367

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Connecting Rod, ARC Stroker, I-beam, T-651 Billet Aluminum, Polished, 4.475 in, Jr Dragster Engines Only, Each

Part Number: JRC-685-6369

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HEAD STUD KIT W/ O-RING

Part Number: JRC-322-3458

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HEAD STUD KIT W/O O-RING

Part Number: JRC-322-3459

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HEAD STUD O-RING KIT

Part Number: JRC-322-3571

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HEAD STUD SPACER & O-RING KIT

Part Number: JRC-322-3572

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