CHEVROLET Chevy big block Mark IV PRW Power Engines & Components

Harmonic Balancer Bolt, 12-point, 180,000 PSI, 1/2-20 in., 1.550 in. UHL, Each

Part Number: PQX-1042396

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Rocker Arms, Pro Series, Stud Mount, Full Roller, Stainless Steel, Natural, 1.65 Ratio, Fits 7/16 in. Stud, Chevy, Small Block, Each

Part Number: PQX-0235018-01

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Estimated Ship Date: Today

Rocker Arms, Sportsman Steel Roller Tip, Stud Mount, Chromoly Steel, Natural, 1.6 Ratio, Fits 7/16 in. Stud, Chevy, Small Block, Each

Part Number: PQX-0835021-01

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Estimated Ship Date: Feb 9, 2026 if ordered today

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Valve Cover Bolt Kit

Part Number: PQX-4145410

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Harmonic Balancer Component, Counterweight, 15.20 oz. Total, External Engine Balance, Chevrolet, Excalibur, GMC, Each

Part Number: PQX-2391005

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Estimated Ship Date: Feb 9, 2026 if ordered today

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