SKU: 150-4069 | UPC: 672036003227
ARP 1983-1987 Ford F-150 F-250 F-350 6.9L Diesel Head Stud Kit
ARP Head Stud Kit 150-4069 upgrades Ford International 6.9L diesel cylinder heads in 1983-1987 F-Series trucks. This kit replaces stock bolts with studs for better head gasket sealing and engine stability. It maintains clamp load under high boost and heat for diesel enthusiasts building reliable power.
Key Features
- ARP 8740 Chromoly Construction: High-tensile steel withstands extreme cylinder pressures in 6.9L diesel applications
- Stud Design: Minimizes block thread damage compared to bolts and allows accurate torque retention
- Rolled Threads: Increases fatigue strength by 25% over cut threads for repeated torque cycles
- Complete Kit Contents: Includes studs, hardened washers, 12-point nuts, and lube instructions for full assembly
- Multi-Use Durability: Handles daily street use, towing loads, or racing demands without failure
Product Notes
- Inspect head and block surfaces flatness before assembly for optimal sealing
- Apply ARP Ultra-Torque to studs and washers to achieve specified preload
- Packed in protective tube to arrive ready for immediate use
Installation Notes
- Professional installation recommended.
- Torque in ARP-specified sequence starting at 60 ft-lbs, then 110 ft-lbs with moly lube
- Works with OEM or aftermarket MLS head gaskets and diesel hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1984 | Ford | F-150 | Base |
| 1984 | Ford | F-150 | XL |
| 1984 | Ford | F-150 | XLT |
| 1983-1986 | Ford | F-250 | Base |
| 1987 | Ford | F-250 | Custom |
| 1983-1987 | Ford | F-250 | XL |
| 1983 | Ford | F-250 | XLS |
| 1983-1984 | Ford | F-250 | XLT |
| 1985-1987 | Ford | F-250 | XLT Lariat |
| 1983-1986 | Ford | F-350 | Base |
| 1987 | Ford | F-350 | Custom |
| 1983-1987 | Ford | F-350 | XL |
| 1983 | Ford | F-350 | XLS |
| 1983-1984 | Ford | F-350 | XLT |
| 1985-1987 | Ford | F-350 | XLT Lariat |
Why Choose ARP?
- ARP fasteners power NHRA and NASCAR engines for proven reliability
- Heat-treated 8740 alloy steel rated over 200,000 psi tensile strength
- CNC-machined for exact fit and repeatable performance results
Frequently Asked Questions
- Q: Does this fit 1985 F-250 6.9L diesel engines?
A: Yes, ARP 150-4069 fits all 1983-1987 Ford F-250 F-350 with factory 6.9L International IDI diesel, including XL and XLT trims - Q: What material and finish do the studs have?
A: Forged 8740 chromoly steel, heat-treated to 200,000 psi, with rolled threads and black oxide finish for corrosion resistance - Q: What warranty covers this kit?
A: ARP offers a one-year warranty from purchase date against defects in materials or workmanship when installed per instructions
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure ARP tube in box, 12 x 8 x 3 inches
- Weight: 5 lbs
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