ARP Rover 3.9L-4.6L V8 with 10 Bolt Heads – Head Stud Kit

SKU: 157-4301 | UPC: 672036041793

ARP Rover 3.9L-4.6L V8 with 10 Bolt Heads – Head Stud Kit

ARP head stud kit designed specifically for Land Rover vehicles with Rover 3.9L 4.0L 4.6L V8 engines and 10 bolt cylinder heads including Range Rover Discovery and Defender models from 1989 to 2004. These studs provide dependable clamping force to maintain gasket seal under high boost or high RPM conditions. Built for long-term reliability in demanding street and track use.

Key Features

• ARP Fasteners: Constructed from high-strength 8740 chromoly steel with 180,000-200,000 psi tensile strength for secure head retention
• Stud Design: Parallel threads reduce distortion and wear on block threads while enabling accurate repeatable torque values
• Precision Threads: Rolled before heat treatment for maximum fatigue strength and consistent engagement in aluminum heads
• Matched Hardware: Includes washers and twelve-point nuts for complete kit and simplified bolt-on assembly
• Versatile Application: Handles stock rebuilt or modified engines in Land Rover V8 swaps or performance builds

Product Notes

• Verify 10 bolt head configuration before purchase matches your engine
• Use ARP Ultra-Torque lubricant on threads and under nuts for correct preload
• Ships in protective ARP packaging ready for immediate install

Installation Notes

• Professional installation recommended.
• Clean cylinder block threads thoroughly and chase with ARP thread chaser tool
• Torque to ARP specs in three steps using correct sequence recheck after 500 miles

This Part Fits

Why Choose ARP?

• ARP fasteners power wins in NHRA Top Fuel and Pro Stock racing
• Each kit manufactured to exacting tolerances for zero defects
• Extensive testing ensures performance from 200hp daily drivers to 1000hp race motors

Frequently Asked Questions

• Q: Will this kit fit Land Rover Discovery Series II 4.0L V8?
  A: Yes fits 1999-2004 Discovery Series II models with 4.0L or 4.6L Rover V8 and 10 bolt heads confirm your head bolt count
• Q: What material and strength rating do these studs have?
  A: Made from ARP 8740 chromoly steel with minimum 180,000 psi tensile strength and rolled threads for fatigue resistance
• Q: What torque specs and lube should I use for installation?
  A: ARP provides torque sequence values in packaging use ARP Ultra-Torque on threads and nut faces never use motor oil

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Original ARP box 10in x 6in x 2.5in
• Weight: 2.8 lbs