Toggle menu
507-525-1321
  • LoginorSign Up
  • 0
Weir Racing
Reset Search ×
Reset Search ×
Reset Search ×
Reset Search ×
  • Main Menu

  • Shipping & Returns
  • Contact Us
  • Blog
  • Shop By Category

  • Clearance Sale
  • Ford
    • All Ford
    • 7.3L Godzilla Swap Parts
    • F-150
      • 2011-2014
      • 2015-2017
      • 2018
    • Focus
      • Exhaust
      • Interior
    • Mustang
      • 1979-1993
      • 1994-2004
      • 2005-2014
      • 2015+
    • Super Duty
  • Tesla
    • All Tesla
    • Model S
      • Suspension
    • Model 3
      • Exterior
      • Suspension
    • Model X
    • Model Y
      • Suspension
  • Dodge
    • All Dodge
    • Challenger
      • Engine
      • Exhaust
      • Intake
      • Supercharger
  • Fittings & Hose
  • Fluids
  • Tires
  • Tools
  • Weir Racing Merchandise
  • Shop by Product Manufacturer
    • All Shop by Product Manufacturer
    • Access
    • AEM
    • Aeromotive
    • AlphaRex
    • American Racing Headers
    • American Racing Solutions
    • AMP Research
    • Anderson Composites
    • Apex
    • Arcane
    • ARP
    • ATI
    • AWE Tuning
    • Baer
    • BAK
    • Belltech
    • Big Jon Racing
    • Billet Pro Shop
    • BMR
    • BOOSTane
    • Borla
    • Boundary
    • Bridgestone
    • Centerforce
    • Circle D
    • Continental
    • Corsa
    • DeatschWerks
    • Driveshaft Shop
    • Eaton
    • Eibach
    • Exedy
    • Falken Tire
    • Flaming River
    • Flowmaster
    • Ford Performance
    • Fore Innovations
    • Gates
    • Goodridge
    • Goodyear
    • Gorilla
    • H&R
    • Holley
    • Hoosier
    • Husky Liners
    • Injector Dynamics
    • J&M
    • JLT
    • King Engine Bearings
    • Kooks
    • LTH
    • Lund Racing
    • Magnaflow
    • Magnuson
    • Manley
    • Mantic
    • MBRP
    • McLeod
    • MFP
    • MGW
    • Michelin
    • Mickey Thompson
    • Mishimoto
    • MMR
    • Molnar
    • Motion Raceworks
    • Motive Gear
    • NGK
    • Nitto
    • PMAS
    • QA1
    • Race Ramps
    • Race Star
    • SCT
    • Seibon
    • SPL Parts
    • Stainless Works
    • Strange Engineering
    • TBM Brakes
    • TCS
    • The Ti Shop
    • Toyo
    • UPR Products
    • Vengeance Clutch
    • Vibrant
    • Viking
    • VMP
    • Walbro
    • Watson Racing
    • WeatherTech
    • Weld
    • Whipple Superchargers
    • Whiteline
    • Wilwood
    • ZPE Griptec
  • Shop By Brand

  • Vibrant
  • Husky Liners
  • BMR Suspension
  • Toyo
  • DeatschWerks
  • Ford Performance
  • Borla
  • Apex
  • Eibach
  • Stainless Works
  • View all Brands
  • Gift Certificates
  • Login or Sign Up
Reset Search ×
  • Main Menu

  • Shipping & Returns
  • Contact Us
  • Blog
  • Shop By Category

  • Clearance Sale
  • Ford
    • All Ford
    • 7.3L Godzilla Swap Parts
    • F-150
      • 2011-2014
      • 2015-2017
      • 2018
    • Focus
      • Exhaust
      • Interior
    • Mustang
      • 1979-1993
      • 1994-2004
      • 2005-2014
      • 2015+
    • Super Duty
  • Tesla
    • All Tesla
    • Model S
      • Suspension
    • Model 3
      • Exterior
      • Suspension
    • Model X
    • Model Y
      • Suspension
  • Dodge
    • All Dodge
    • Challenger
      • Engine
      • Exhaust
      • Intake
      • Supercharger
  • Fittings & Hose
  • Fluids
  • Tires
  • Tools
  • Weir Racing Merchandise
  • Shop by Product Manufacturer
    • All Shop by Product Manufacturer
    • Access
    • AEM
    • Aeromotive
    • AlphaRex
    • American Racing Headers
    • American Racing Solutions
    • AMP Research
    • Anderson Composites
    • Apex
    • Arcane
    • ARP
    • ATI
    • AWE Tuning
    • Baer
    • BAK
    • Belltech
    • Big Jon Racing
    • Billet Pro Shop
    • BMR
    • BOOSTane
    • Borla
    • Boundary
    • Bridgestone
    • Centerforce
    • Circle D
    • Continental
    • Corsa
    • DeatschWerks
    • Driveshaft Shop
    • Eaton
    • Eibach
    • Exedy
    • Falken Tire
    • Flaming River
    • Flowmaster
    • Ford Performance
    • Fore Innovations
    • Gates
    • Goodridge
    • Goodyear
    • Gorilla
    • H&R
    • Holley
    • Hoosier
    • Husky Liners
    • Injector Dynamics
    • J&M
    • JLT
    • King Engine Bearings
    • Kooks
    • LTH
    • Lund Racing
    • Magnaflow
    • Magnuson
    • Manley
    • Mantic
    • MBRP
    • McLeod
    • MFP
    • MGW
    • Michelin
    • Mickey Thompson
    • Mishimoto
    • MMR
    • Molnar
    • Motion Raceworks
    • Motive Gear
    • NGK
    • Nitto
    • PMAS
    • QA1
    • Race Ramps
    • Race Star
    • SCT
    • Seibon
    • SPL Parts
    • Stainless Works
    • Strange Engineering
    • TBM Brakes
    • TCS
    • The Ti Shop
    • Toyo
    • UPR Products
    • Vengeance Clutch
    • Vibrant
    • Viking
    • VMP
    • Walbro
    • Watson Racing
    • WeatherTech
    • Weld
    • Whipple Superchargers
    • Whiteline
    • Wilwood
    • ZPE Griptec
  • Shop By Brand

  • Vibrant
  • Husky Liners
  • BMR Suspension
  • Toyo
  • DeatschWerks
  • Ford Performance
  • Borla
  • Apex
  • Eibach
  • Stainless Works
  • View all Brands
  • Gift Certificates
  • Login or Sign Up

Shop by Category

  • Clearance Sale
  • Ford
    • 7.3L Godzilla Swap Parts
    • F-150
      • 2011-2014
      • 2015-2017
      • 2018
    • Focus
      • Exhaust
      • Interior
    • Mustang
      • 1979-1993
      • 1994-2004
      • 2005-2014
      • 2015+
    • Super Duty
  • Tesla
    • Model S
      • Suspension
    • Model 3
      • Exterior
      • Suspension
    • Model X
    • Model Y
      • Suspension
  • Dodge
    • Challenger
      • Engine
      • Exhaust
      • Intake
      • Supercharger
  • Fittings & Hose
  • Fluids
  • Tires
  • Tools
  • Weir Racing Merchandise
  • Shop by Product Manufacturer
    • Access
    • AEM
    • Aeromotive
    • AlphaRex
    • American Racing Headers
    • American Racing Solutions
    • AMP Research
    • Anderson Composites
    • Apex
    • Arcane
    • ARP
    • ATI
    • AWE Tuning
    • Baer
    • BAK
    • Belltech
    • Big Jon Racing
    • Billet Pro Shop
    • BMR
    • BOOSTane
    • Borla
    • Boundary
    • Bridgestone
    • Centerforce
    • Circle D
    • Continental
    • Corsa
    • DeatschWerks
    • Driveshaft Shop
    • Eaton
    • Eibach
    • Exedy
    • Falken Tire
    • Flaming River
    • Flowmaster
    • Ford Performance
    • Fore Innovations
    • Gates
    • Goodridge
    • Goodyear
    • Gorilla
    • H&R
    • Holley
    • Hoosier
    • Husky Liners
    • Injector Dynamics
    • J&M
    • JLT
    • King Engine Bearings
    • Kooks
    • LTH
    • Lund Racing
    • Magnaflow
    • Magnuson
    • Manley
    • Mantic
    • MBRP
    • McLeod
    • MFP
    • MGW
    • Michelin
    • Mickey Thompson
    • Mishimoto
    • MMR
    • Molnar
    • Motion Raceworks
    • Motive Gear
    • NGK
    • Nitto
    • PMAS
    • QA1
    • Race Ramps
    • Race Star
    • SCT
    • Seibon
    • SPL Parts
    • Stainless Works
    • Strange Engineering
    • TBM Brakes
    • TCS
    • The Ti Shop
    • Toyo
    • UPR Products
    • Vengeance Clutch
    • Vibrant
    • Viking
    • VMP
    • Walbro
    • Watson Racing
    • WeatherTech
    • Weld
    • Whipple Superchargers
    • Whiteline
    • Wilwood
    • ZPE Griptec
  • Shop by Brand

  • Vibrant
  • Husky Liners
  • BMR Suspension
  • Toyo
  • DeatschWerks
  • Ford Performance
  • Borla
  • Apex
  • Eibach
  • Stainless Works
  • View all Brands
    • Home
    • Ford
    • ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit
  • ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit (ARP 156-5203)
  • ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit (ARP 156-5203)

    ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit

    ARP

    $75.95
    (No reviews yet) Write a Review
    SKU:
    ARP-156-5203

    Wishlist

    Share This Article

    • Overview
    • Reviews

    Product Description

    ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit

    From ARP:

    Socket Size(s): 7/16 12pt
    Kit #: 156-5203

    *Main Studs*
    There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others.

    *Main Bolts*
    Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 1000% longer fatigue life than most main bolts, which are threaded prior to heat-treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 psi, is a premium replacement for OEM fasteners, or the 200,000 psi nominal rated Pro Series, application-specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel-ground, hardened washers are included with each kit.

    Product Videos

    Custom Field

    Product Reviews

    (No reviews yet) Write a Review

    Write a Review

    ×
    ARP
    ARP Ford Modular Boss 5.0L M9 Main Cap Side Bolt Kit

    Recommended

    ARP Ford Modular Boss V8 5.0L Main Stud Kit (ARP 156-5404) ARP 156-5404 Installation Instructions
    Quick view

    ARP Ford Modular Boss V8 5.0L Main Stud Kit

    $194.99
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Late Alum Block) M9 (ARP 156-5002)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Late Alum Block) M9

    $84.95
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Late Cast Iron Block) M9 (ARP 156-5202)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Late Cast Iron Block) M9

    $74.45
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Early Cast Iron Block) M8 Main Bolt Kit (ARP 156-5201)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Early Cast Iron Block) M8 Main Bolt Kit

    $74.45
    Add to Cart
    ×
    • Related Products
    ARP Ford Modular Boss V8 5.0L Main Stud Kit (ARP 156-5404) ARP 156-5404 Installation Instructions
    Quick view

    ARP Ford Modular Boss V8 5.0L Main Stud Kit

    $194.99
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Late Alum Block) M9 (ARP 156-5002)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Late Alum Block) M9

    $84.95
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Late Cast Iron Block) M9 (ARP 156-5202)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Late Cast Iron Block) M9

    $74.45
    Add to Cart
    ARP Ford Modular V8 Main Cap-Side Bolt (Early Cast Iron Block) M8 Main Bolt Kit (ARP 156-5201)
    Quick view

    ARP Ford Modular V8 Main Cap-Side Bolt (Early Cast Iron Block) M8 Main Bolt Kit

    $74.45
    Add to Cart
    ×
    Contact Us
    22090 400th Ave
    Winnebago, MN 56098
    Accounts & Orders
    • Wishlist
    • Login or Sign Up
    • Order Status
    • Shipping & Returns
    • Sitemap
    Quick Links
    • Shipping & Returns
    • Contact Us
    • Blog
    Recent Blog Posts
    • © Weir Racing
    • Sitemap
    • Premium BigCommerce Theme by Lone Star Templates