Engines & Engine Parts

Rocker Arm Nuts, Stud Girdle Replacement Nuts, Polylock, 3/8-24 in., Use with Small Block Chevy and Small Block Ford AFR Stud Girdles, Set of 16

Part Number: AFR-6216-16

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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ROCKER ARMS, PRO SERIES ALUM, Ford Boss 351C-M, 400, 429, 460 1968-97, 1.73 X 7/16"

Part Number: PQX-6542902

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arms, Shaft Mount, 1.5 Ratio, Aluminum, Roller Rockers, Shafts, Spacers, Mopar, Big Block B/RB, Set of 16

Part Number: PRO-440-868

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm, Non-roller, Stud Mount, Steel, Natural, 0.486 in. Slot Width, Each

Part Number: MEL-MRK-405

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arm Stud, M8 x 1.25mm Base Thread, 3/8-24 in. Rocker Arm Nut Thread Size, Chevy, Small Block LS, Each

Part Number: CCA-4554-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arms, Elite Series, Stud Mount, Full Roller, Stainless Steel, 1.73 Ratio, Fits 7/16 in. Stud, Ford, Boss, Modified, 385 Series, Set of16

Part Number: PQX-62460773

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arms, Pedestal-Shaft Style, Full Roller, Aluminum, 1.50 Ratio, AFR Heads, Kit

Part Number: PQX-3535031

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 18, 2026 if ordered today

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Rocker Arm Shafts, Heavy-Duty, Steel, Ford, 427/428, FE, Pair

Part Number: CSP-PR4006S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm Nuts, 7/16 in.-20 Thread, For Stud Girdles, Chevy, Small Block, Set of 16

Part Number: AAF-ALL90207

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.65 Ratio, Fits 7/16 in. Stud, Chevy, 262-400, V8, Set of 16

Part Number: HRS-90087

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 7, 2026 if ordered today

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Rocker Arms, Stud Mount, Full Roller, 1.73 Ratio, Designed for Cobra Jet Style Heads Only, Ford, 429, 460, Kit

Part Number: CSP-S4073

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arms, Sportsman Series, Stud Mount, Roller Tip, Self-Aligning, 1.5/1.6 Split Ratio, Fits 3/8 in. Stud, With Oil Deflector, Chevy, Set of 16

Part Number: PQX-68327356

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Rocker Arm Trunnion Upgrade Kit, Needle Bearing Style, Chevy, Small Block LS, Set of 16

Part Number: PQX-1213462

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm Stud Girdle, Aluminum, Purple, 7/16 in.-20 Thread, Chevy, Big Block, Kit

Part Number: HRS-90120

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Shaft Hold Down, Steel, Big Block Mopar, Kit

Part Number: PQX-9544005

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm, Stud Mount, Roller Tip, Steel, 1.60 Ratio, Fits 3/8 in. Stud, Ford, Oldsmobile, Each

Part Number: CCA-1442-1

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.73 Ratio, 7/16 in. Stud, Ford, Bigl Block, Cleveland, Modified, Set of 16

Part Number: SCC-SCP1023

4.57 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm Studs, 7/16-20 in. Thread, 1.925 in. Effective Stud Length, Chevy, Ford, Set of 16

Part Number: EW1-17527

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arm Stud Girdle, Aluminum, 3/8 in.-24 Thread, Chevy, Small Block, Kit

Part Number: PRO-66950

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Studs, Screw In, Rocker Arm, 7/16 in., 3/8 in.-24 Thread x 1.75 in. Long Top, 7/16 in-14 Bottom Thread, Set of 16

Part Number: MRG-1075

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm, 1.6 Ratio, 7/16 in. Stud, Full Roller Design, Aluminum, Small Chevy, Each

Part Number: TFS-31400521-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arms, Long Slot, Stud Mounting Style, Non-roller, 1.6 Ratio, Steel, Chevy, Small Block, Set of 16

Part Number: HRS-90006

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Rocker Arm Stud Girdle Nuts, Roller Rockers, 7/16 in.-20 Thread, .750 in. Outside Diameter, 2.515 in. Height, Set of 8

Part Number: CCA-4510-8

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arm Nuts, Polylock, Stud Girdle Replacement, Full Roller, 7/16 in.-20 Thread, 0.550 in. Shank Diameter, 2.50 Length, Each

Part Number: HRS-90127-1

Not Yet Reviewed

Estimated Ship Date: Monday 3/16/2026 if shipped by air

Rocker Arms, Stamped Steel, 1.50 Ratio, 3/8 in. Stud, Chevy, Small Block, Set of 8

Part Number: MAN-43140

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air