My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

ARP 256-5701 Main Cap Stud Kit for Mains with Windage Tray - 4-Bolt

(Ford F-150 1997-2007, Mustang 1996-2004, Explorer 2002-05, Expedition 1997-99, 2001-04, Crown Victoria 1992-2007, F-250 Pickup 1997-99 + 5 more models)

Manufacturer

Picture for manufacturer ARP

Part Number

256-5701
11 reviews
Sale Price

$276.30

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 256-5701 main stud kit is engineered for high-performance and competition engines with 4-bolt main caps and windage tray provisions. This complete fastener system eliminates main cap walk and fretting while protecting critical engine block threads during high-stress operation.

Key Features:

  • Manufactured from premium 8740 chrome moly steel for exceptional strength and durability
  • Heat-treated in-house to 200,000 psi tensile strength for maximum clamping force
  • Precision J-form threads rolled after heat-treatment for 1000% greater strength than conventional fasteners
  • Specially designed standoff studs with serrated lock nuts for secure windage tray positioning
  • Includes hardened parallel-ground washers for even load distribution
  • High-quality nuts ensure consistent torque values and reliable installation

ARP's post-heat-treat thread rolling process creates fasteners with superior fatigue resistance compared to pre-heat-treat threading methods. The generous under-head radius design reduces stress concentrations, while the precision-ground components ensure proper clamping geometry. This complete kit provides professional engine builders with a reliable solution for securing main caps in demanding racing and performance applications.

Products specifications

Fits

Ford F-150 1997-2007, Mustang 1996-2004, Explorer 2002-05, Expedition 1997-99, 2001-04, Crown Victoria 1992-2007, F-250 Pickup 1997-99, E-150 2006-07, E-250 2006-07, E-150 Econoline 1999-2005, E-250 Econoline 2003-05, F-150 Heritage 2004

Fastener Nut Style

Standard hex

Fastener Style

Stud

Fastener Yield Strength (psi)

200,000 psi

Main Bolt Style

4-bolt

Notes

Designed to fit with windage tray.

Nuts Included

Yes

Quantity

Sold as a kit.

Washers Included

Yes

Works with Windage Tray

Yes

Good

It was quick and easy to place the order for my 1996 Pontiac Firebird. I would recommend & use your online ordering system again.

Great so far

Fast & easy

Best price. Website is easy to navigate, and tye check out process was quick and easy.

Was a good service thank you....

The website is easy on the eye and maneuverability is excellent.

Cheap cat, cheap shipping. We'll see when it gets here!

Fast shipping cheapest I could find, easy to deal with, great product

I bought a Bestop for my Samari and the service was great and the top fit perfect. The online site is easy to use and quick.

The item has not been delivered yet. But the email updates are great. And I found this much cheaper than elsewere.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy