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SKU: 207-4701 | UPC: 672036020071
ARP Mitsubishi 4G63 M12 Head Stud Kit 1990-1994 Eclipse GS/GSX Talon TSi Laser RS
ARP 207-4701 head stud kit upgrades 4G63 engines in 1990-1994 DSM vehicles like Mitsubishi Eclipse GS and GSX, Eagle Talon TSi, and Plymouth Laser RS. M12 studs replace stock bolts to secure the head under high boost and RPM for consistent cylinder pressure in performance builds. Engine builders choose ARP for dependable strength in boosted 4G63 applications.
Key Features
- 8740 Chromoly Steel Construction: Forged steel with 190,000 psi tensile strength resists stretching and fatigue at extreme boost levels
- M12 x 1.25 Threads: Rolled threads provide exact fit and consistent torque on 4G63 7-bolt heads with 10-stud pattern
- Black Oxide Finish: Resists corrosion and galling for reliable installation and extended service life
- Complete Kit Contents: 10 studs, 10 hardened parallel ground washers, 10 chrome moly 12-point nuts for full assembly
- Proven Performance: Supports high-horsepower 4G63 builds with ARP torque specs up to 65-70 ft-lbs using moly lube
Product Notes
- Verify 7-bolt head configuration before purchase common on 1990-1992 DSM models
- Clean threads thoroughly and use ARP Ultra-Torque lubricant for accurate torque
- Ships in protective packaging to prevent damage
Installation Notes
- Professional installation recommended.
- Torque in three stages to ARP specs: 30 ft-lbs 50 ft-lbs then 65-70 ft-lbs with moly
- Compatible with OEM head gasket ARP MLS gaskets and stock or aftermarket rods
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1990-1994 | Eagle | Talon | TSi |
| 1990-1994 | Mitsubishi | Eclipse | GS |
| 1990-1994 | Mitsubishi | Eclipse | GSX |
| 1990-1994 | Plymouth | Laser | RS |
Why Choose ARP?
- ARP fasteners power wins in NHRA Pro Stock and drag racing
- Every stud undergoes rigorous proof-load testing for zero defects
- Engineered tolerances match OEM specs while exceeding strength requirements
Frequently Asked Questions
-
Q: Does this fit 1993-1994 Eclipse GSX with 6-bolt 4G63?
A: Designed for 7-bolt 4G63 heads in 1990-1992 models. For 6-bolt use ARP 207-4301. Confirm your block casting before ordering. -
Q: What material are the studs made from?
A: High-grade 8740 chromoly steel heat-treated for maximum fatigue resistance and black oxide coated against rust. -
Q: What is the warranty and torque procedure?
A: Limited lifetime warranty on studs if installed and torqued per ARP instructions. Use ARP lube and angle torque method for best results.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact box measures 7.6 x 5.9 x 1.6 inches
- Weight: 1.9 lbs
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