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41 Results Found For "polylocks"

Over 50 years of research and design has made Howards Cams a trusted name in performance. The company’s legendary American-made camshafts are just the beginning of the...

Over 50 years of research and design has made Howards Cams a trusted name in performance. The company’s legendary American-made camshafts are just the beginning of the performance product line. Howards also manufactures an extensive line of crankshafts, rocker arms, stud girdles, pistons, connecting rods, valve springs, retainers, and locks for everything from daily drivers to dragsters. All Howards Cams products are manufactured to exacting tolerances to guarantee superior performance. Summit Racing Equipment is your one-stop shop for Howards Cams components.

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Results 1 - 25 of 41

Howards Cams Stud Girdle Adjustment Nuts 90126-1

Howards Cams Stud Girdle Adjustment Nuts 90126-1

Rocker Arm Nuts, Polylock, Stud Girdle Replacement, Full Roller, 7/16 in.-20 Thread, 0.550 in. Shank Diameter, 2.00 Length, Each

Part Number: HRS-90126-1

5.0 out of 5 stars ( 2 )

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

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

Howards Cams Stud Girdle Adjustment Nuts 90127-1

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 4/27/2026 if shipped by air

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

Howards Cams Rocker Arm Nuts 90034

Rocker Arm Nuts, Polylock, Full Roller, 3/8 in.-24 Thread, 0.600 in. Shank Diameter, 1.190 in. Length, Each

Part Number: HRS-90034

Not Yet Reviewed

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

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

Howards Cams Rocker Arm Nuts 90036

Rocker Arm Nuts, Polylock, Full Roller, 7/16 in.-20 Thread, 0.600 in. Shank Diameter, 1.190 in. Length, Each

Part Number: HRS-90036

Not Yet Reviewed

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

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

Howards Cams Rocker Arm Nuts 92140

Rocker Arm Nuts, Polylock, Stamped Steel Style, Full Roller, 3/8 in.-24 Thread, 0.600 in. Shank Diameter, 1.190 in. Length, , Set of 16

Part Number: HRS-92140

5.0 out of 5 stars ( 1 )

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

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

Howards Cams Stud Girdle Adjustment Nuts 90125-1

Rocker Arm Nuts, Polylock, Stud Girdle Replacement, Full Roller, 3/8 in.-24 Thread, 0.550 in. Shank Diameter, 2.00 Length, Each

Part Number: HRS-90125-1

Not Yet Reviewed

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

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

Howards Cams Billet Aluminum Rocker Arms 90075

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.7 Ratio, Fits 7/16 in. Stud, Chevy, 396-454, V8, Set of 16

Part Number: HRS-90075

4.89 out of 5 stars ( 9 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90072

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.5 Ratio, Fits 7/16 in. Stud, Chevy, 262-400, V8, Set of 16

Part Number: HRS-90072

4.2 out of 5 stars ( 5 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90070

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.5 Ratio, Fits 3/8 in. Stud, Chevy, 262-400, V8, Set of 16

Part Number: HRS-90070

5.0 out of 5 stars ( 5 )

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

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

Howards Cams Maximum Effort Stud Girdle Kits 90121

Rocker Arm Stud Girdle, Aluminum, Purple, 7/16 in.-20 Thread, Chevy, Big Block, Dart, Brodix, AFR and RHS, Kit

Part Number: HRS-90121

4.82 out of 5 stars ( 11 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90081

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.6 Ratio, Fits 7/16 in. Stud, Ford, 289-351, V8, Set of 16

Part Number: HRS-90081

5.0 out of 5 stars ( 6 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90079

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.8 Ratio, Fits 7/16 in. Stud, Chevy, 396-454, V8, Set of 16

Part Number: HRS-90079

Not Yet Reviewed

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

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

Howards Cams Billet Aluminum Rocker Arms 90083

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.73 Ratio, Fits 7/16 in. Stud, Ford, V8, Set of 16

Part Number: HRS-90083

5.0 out of 5 stars ( 3 )

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

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

Howards Cams Maximum Effort Stud Girdle Kits 90101

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

Part Number: HRS-90101

5.0 out of 5 stars ( 2 )

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

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

Howards Cams Maximum Effort Stud Girdle Kits 90201

Stud Girdle Kit, 7/16 in.-20 Thread, Ford, 221-302, 351W, Kit

Part Number: HRS-90201

5.0 out of 5 stars ( 4 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90073

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.6 Ratio, Fits 7/16 in. Stud, Chevy, 262-400, V8, Set of 16

Part Number: HRS-90073

4.33 out of 5 stars ( 3 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90083F

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.73 Ratio, Fits 7/16 in. Stud, Ford, 351C/429-460, V8, Set of 16

Part Number: HRS-90083F

Not Yet Reviewed

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

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

Howards Cams Billet Aluminum Rocker Arms 90082

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.72 Ratio, Fits 7/16 in. Stud, Ford, 289-351, V8, Set of 16

Part Number: HRS-90082

5.0 out of 5 stars ( 5 )

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

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

Howards Cams Maximum Effort Stud Girdle Kits 90100

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

Part Number: HRS-90100

5.0 out of 5 stars ( 6 )

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

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

Howards Cams Billet Aluminum Rocker Arms 90090

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.65 Ratio, Fits 7/16 in. Stud, Pontiac, V8, Set of 16

Part Number: HRS-90090

Not Yet Reviewed

Estimated Ship Date: Jun 18, 2026 if ordered today

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Estimated Ship Date: Jun 18, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Proform Super-Street Roller Rocker Arms 66913

1 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/27/2026

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Howards Cams Maximum Effort Stud Girdle Kits 90120

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 4/27/2026 if shipped by air

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

Howards Cams Billet Aluminum Rocker Arms 90075-1

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.7 Ratio, Fits 7/16 in. Stud, Chevy, 396-454, V8, Each

Part Number: HRS-90075-1

Not Yet Reviewed

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

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

Howards Cams Billet Aluminum Rocker Arms 90077

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.55 Ratio, Fits 7/16 in. Stud, Chevy, 262-400, V8, Set of 16

Part Number: HRS-90077

Not Yet Reviewed

Estimated Ship Date: Jun 16, 2026 if ordered today

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Estimated Ship Date: Jun 16, 2026 if ordered today

Howards Cams Billet Aluminum Rocker Arms 90087

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: Jun 16, 2026 if ordered today

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Estimated Ship Date: Jun 16, 2026 if ordered today

Howards Cams Billet Aluminum Rocker Arms 90077-1

Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.55 Ratio, Fits 7/16 in. Stud, Chevy, 262-400, V8, Each

Part Number: HRS-90077-1

Not Yet Reviewed

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

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

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