Engines & Engine Parts

Rocker Arm Nut, Long Polylock, with Set Screw, Each

Part Number: BRO-BR6455

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Rocker Arm Stud Girdle, Solid Bar, Polylock, Aluminum, Natural, Ford, Trick Flow Heads, Kit

Part Number: PQX-1546000

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Estimated Ship Date: Jun 29, 2026 if ordered today

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Rocker Arm Nut; Rocker Arm Components; Rocker Arm Adjusting Nuts; Hi-Tech Polylock for Aluminum; Stainless; Pr

Part Number: CCA-4600-8

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Jun 17, 2026 if ordered today

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3/8 Race Series Polylock Single

Part Number: SCC-SCPPL38-1

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Rocker Arm Nut, Short Polylock, with Set Screw, Each

Part Number: BRO-BR6452

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Polylock, 3/8-24 in., Use with Small Block Chevy and Small Block Ford AFR Stud Girdles, Each

Part Number: AFR-6216-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

1.7 SBC 3/8 Narrow Body Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1076-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 27, 2026 if ordered today

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Rocker Arm Stud Girdle, Solid Bar, Polylock, Aluminum, Natural, Pontiac, Edelbrock Heads, Kit

Part Number: PQX-1545501

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

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PolyLocks, 7/16 -24 in. Thread, Set of 4

Part Number: SCC-SCPVTS716S-4

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Rocker Arm Stud Girdle Nuts, Polylock, 7/16-20 in., 2.000 in. Length, 0.600 in. Minimum Slot Width, Each

Part Number: DRT-64210220

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

1.73F BBF 7/16 Blue Endurance Single Rocker Arm w/ Polylock

Part Number: SCC-SCP3023-1

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Estimated Ship Date: May 28, 2026 if ordered today

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Rocker Arm Stud Girdle, Solid Bar, Polylock, Aluminum, Blue Anodized, Ford, Stock Heads, Kit

Part Number: PQX-1530201

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 29, 2026 if ordered today

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1.65 Pontiac 7/16 Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1053-1

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

1.6 SBC 3/8 Narrow Body Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1038-1

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

3/8 STUD GIRDLE POLYLOCK 2.100 OL .600 SLOT WIDTH

Part Number: EW1-36-8

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

Rocker Arm Nut; Rocker Arm Components; Rocker Arm Adjusting Nuts; Magnum Polylock; Stud Size 3/8 in.; 1 pc.

Part Number: CCA-4602-1

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

Polylocks Stud Girdle BB Ford Threaded Through Full Length 7/16"

Part Number: CCA-4511-16

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 16, 2026 if ordered today

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1.65 SBC3/8 .150 Right Offset Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1031R-1

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Estimated Ship Date: May 28, 2026 if ordered today

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1.6 Olds 7/16 Blue Races Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1051-1

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Estimated Ship Date: May 28, 2026 if ordered today

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Rocker Arm Stud Girdle, Solid Bar, Polylock, Aluminum, Natural, Chevrolet, Stock Heads, Kit

Part Number: PQX-1535003

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 29, 2026 if ordered today

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Rocker Arm Nuts, Stud Girdle Replacement Nuts, Full Roller, Polylock, 7/16-20 in., 2.60 in. Overall Length, Each

Part Number: AFR-6215-1

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/27/2026 if shipped by air

7/16 Endurance Series Polylock Short-Set of 4

Part Number: SCC-PL716SH-4

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Estimated Ship Date: Monday 4/27/2026 if shipped by air

1.65 SBC 3/8 .150 Left Offset Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1031L-1

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Estimated Ship Date: May 28, 2026 if ordered today

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1.5 BBC 7/16 Blue Race Single Rocker Arm w/ Polylock

Part Number: SCC-SCP1039-1

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Estimated Ship Date: May 28, 2026 if ordered today

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Rocker Arm Nut, Full Roller, 1/2-20 in. Thread, Polylock, Ultra Pro Manngum, Ultra Pro Magnum XD, Set of 16

Part Number: CCA-4657-16

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Estimated Ship Date: Jun 17, 2026 if ordered today

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