Skip to main content
Skip to main content
List Menu

User account menu

  • Log in
Home
  • Home
  • Shop All
  • Brands
  • Categories
    • Performance
      • Exhaust
    • Tools
    • Brakes
      • Brake Fluid
      • Brake Master Cylinder
      • Brake Proportioning Valve
      • Brake Rotors
      • Brake Pads
      • Brake Caliper Seal Kit
    • Tire & Wheels
      • Tire & Wheel Accessories
    • Air & Fuel
      • Fuel
  • Contact Us
Home

Main navigation

  • Home
  • Shop All
  • Brands
  • Categories
  • Contact Us

Social

  • Catalog
  • Home

FIND YOUR PARTS

Filter Results

3/8 Rocker Arm Nut Polylock NB SA Self Aligning and Narrow Body Sold as 1 Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock NB SA Self Aligning and Narrow Body Sold as 1 Scorpion Racing Products
$3.97
View
3/8 Rocker Arm Nut Polylock RS  Sold As 4 Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock RS Sold As 4 Scorpion Racing Products
$15.83
View
3/8 Rocker Arm Nut Polylock Sold as 1 Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock Sold as 1 Scorpion Racing Products
$3.97
View
3/8 Rocker Arm Nut Polylock NB SA Self Aligning and Narrow Body Sold a 4 Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock NB SA Self Aligning and Narrow Body Sold a 4 Scorpion Racing Products
$15.83
View
7/16 Rocker Arm Nut Polylock Race Series Sold as 11 Scorpion Racing Products
Quick View Eye-fill
7/16 Rocker Arm Nut Polylock Race Series Sold as 11 Scorpion Racing Products
$3.97
View
7/16 Rocker Arm Nut Polylock Short Endurance Series Sold As 1 Scorpion Racing Products
Quick View Eye-fill
7/16 Rocker Arm Nut Polylock Short Endurance Series Sold As 1 Scorpion Racing Products
$3.97
View
7/16 Rocker Arm Nut Polylock Race Series Set of 4 Scorpion Racing Products
Quick View Eye-fill
7/16 Rocker Arm Nut Polylock Race Series Set of 4 Scorpion Racing Products
$15.83
View
3/8 Rocker Arm Nut Polylock Short Endurance Series 1 Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock Short Endurance Series 1 Scorpion Racing Products
$3.97
View
3/8 Rocker Arm Nut Polylock Short Endurance Series Scorpion Racing Products
Quick View Eye-fill
3/8 Rocker Arm Nut Polylock Short Endurance Series Scorpion Racing Products
$15.83
View
Rocker Arm Nut Polylock Outside Diameter .600 inch Scorpion Racing Products
Quick View Eye-fill
Rocker Arm Nut Polylock Outside Diameter .600 inch Scorpion Racing Products
$15.83
View
Rocker Arm Nuts; 7/16 Polylock Howards Cams 92141
Quick View Eye-fill
Rocker Arm Nuts 7/16 Polylock Howards Cams
$45.99
View
Rocker Arm Nuts; 3/8 Polylock Howards Cams 92140
Quick View Eye-fill
Rocker Arm Nuts 3/8 Howards Cams
$54.12
View
Rocker Arm Nuts; 7/16-20 Stud Girdle Polylock Howards Cams 90126-1
Quick View Eye-fill
Rocker Arm Nuts; 7/16-20 Stud Girdle Polylock Howards Cams
$6.12
View
Engine Rocker Arm Poly-Locks 3/8 Thread Fits Most Extruded Roller Rocker Arms Proform
Quick View Eye-fill
Engine Rocker Arm Poly-Locks 3/8 Thread Fits Most Extruded Roller Rocker Arms Proform
$29.42
View
Engine Rocker Arm Poly-Locks 7/16 Thread Fits Most Extruded Roller Rocker Arms Proform
Quick View Eye-fill
Engine Rocker Arm Poly-Locks 7/16 Thread Fits Most Extruded Roller Rocker Arms Proform
$32.50
View
Rocker Arm Nuts with Locks Fits Big Block Chevrolet & Pontiac V8 Using Aluminum Rocker Arms Mr Gasket
Quick View Eye-fill
Rocker Arm Nuts with Locks Fits Big Block Chevrolet & Pontiac V8 Using Aluminum Rocker Arms Mr Gasket
$112.95
View
Rocker Arm Nuts with Locks Fits Small Block Chevrolet 283-400, Pontiac 326/400/455, Ford 289/302/351W with aluminum Rocker Arms Mr Gasket
Quick View Eye-fill
Rocker Arm Nuts with Locks Fits Small Block Chevrolet 283-400, Pontiac 326/400/455, Ford 289/302/351W with aluminum Rocker Arms Mr Gasket
$99.95
View
Sure Lock Rocker Arm Nuts Fits Small Block Chevrolet 283-400, Pontiac 326/400/455, Ford 289/302/351W with stock rocker arms Mr Gasket
Quick View Eye-fill
Sure Lock Rocker Arm Nuts Fits Small Block Chevrolet 283-400, Pontiac 326/400/455, Ford 289/302/351W with stock rocker arms Mr Gasket
$47.96
View

Brand

  • Howards Cams
  • Mr Gasket
  • ProForm
  • Scorpion Racing Products

Category

  • Engine and Components
    • Engine Rocker Arm
      • (-) Engine Rocker Arm Nut

Color

  • Gold
Filters

Brand

  • Howards Cams
  • Mr Gasket
  • ProForm
  • Scorpion Racing Products

Category

  • Engine and Components
    • Engine Rocker Arm
      • (-) Engine Rocker Arm Nut

Color

  • Gold

Company

  • Shop Brands
  • Shop Categories
  • About Us
  • Contact Us
  • Customer Showcase
  • Privacy Policy
  • Shipping Policy
  • Terms & Services

 

aer

ps

 

Contact Us

Text

Let's Chat

 508-808-8627
 Support@opmustang.com 
 

 

We're Open!

Store Hours

Monday to Friday: 9:00 AM - 6:00 PM
Saturday: 9:00 AM - 4:00 PM
Sunday: Closed

© 2026 Optimum Performance

Powered by Complete Web Solutions