SKU: 151-4702 | UPC: 672036003401
ARP Cylinder Head Stud Kit for 1979-1980 Ford Pinto 2300cc 2.3L
This ARP Pro Series cylinder head stud kit upgrades engines in 1979-1980 Ford Pinto and Mercury Bobcat 2.3L models. Precision studs provide consistent clamping force to seal cylinder heads under high boost or RPM. Engine builders choose ARP for fatigue-resistant construction that handles competition demands.
Key Features
- 8740 Chrome Moly Material: Heat-treated to 190,000 PSI for strength that withstands extreme cylinder pressures
- Post-Heat-Treat Thread Rolling: Delivers 2000% higher fatigue strength compared to pre-heat-treat threading
- Centerless Ground: Ensures concentricity so heads and gaskets align perfectly without binding
- Undercut Stud Design: Equalizes stretch on shorter studs for uniform clamping and gasket compression resistance
- Black Oxide Finish: Provides corrosion resistance with ARP stamping for authenticity, made in USA
Product Notes
- ARP stamped on each stud confirms genuine quality trusted by racing engine builders
- Compatible with multi-layer steel or copper head gaskets for performance builds
- Box dimensions 6 x 6 x 2 inches for secure storage and shipping
Installation Notes
- Professional installation recommended.
- Torque to ARP specifications using ARP Ultra-Torque assembly lube for accurate clamping load
- Fits stock cylinder heads and blocks. reuse stock washers if undamaged
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1979-1980 | Ford | Pinto | 2.3L |
| 1979-1980 | Ford | Pinto | Base |
| 1979 | Ford | Pinto | Pony |
| 1979-1980 | Mercury | Bobcat | 2.3L |
| 1979-1980 | Mercury | Bobcat | Base |
Why Choose ARP?
- Professional engine builders rely on ARP for all-out competition engines
- Premium alloys and heat treatment outperform standard head fasteners
- Exact tolerances from centerless grinding and thread rolling ensure straight studs
Frequently Asked Questions
-
Q: Which engines does ARP 151-4702 fit?
A: Designed for 1979-1980 Ford Pinto and Mercury Bobcat 2300cc 2.3L SOHC engines exclusively -
Q: What material and finish are used?
A: 8740 chrome moly alloy with black oxide finish, heat-treated to 190,000 PSI -
Q: What warranty applies and installation tips?
A: Limited warranty against manufacturing defects. clean threads, use ARP lube, torque in sequence to spec
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box 6 x 6 x 2 inches
- Weight: 1.85 lbs
ARP
ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
View ARP Products
ARP Head Studs
ARP head studs replace factory head bolts with precision-machined threaded studs that provide more consistent and repeatable clamping force on the cylinder head gasket. Unlike head bolts that apply torque through both rotational and tensile forces, head studs allow the nut to be torqued concentrically on a stud that is already stationary, producing more even clamping load across the entire head gasket surface. Popular ARP Head Stud Applications ARP head studs are available for a wide range of performance and turbocharged engines including the Subaru EJ series, Honda K series and B series, Mitsubishi 4G63 and 4B11, Honda Civic and Integra, Toyota 2JZ-GTE, Nissan SR20DET and RB series, GM LS series, Ford Coyote and 5.0, and Dodge/Chrysler HEMI applications. ARP offers both 8740 chromoly and ARP2000 alloy head stud kits, with the ARP2000 material providing approximately 20 percent higher tensile strength for high-boost applications above 30 psi. Why are head studs preferred over head b...
View ARP Head Studs Products
Head Components
This collection covers cylinder head components including head gaskets, head studs, and complete head assemblies for performance engine builds and high-output applications, serving vehicle owners and builders who need reliable components for maintenance, restoration, or performance enhancement. Arp head studs, cometic head gaskets, and edelbrock or afr cylinder heads are foundational brands in performance cylinder head work, providing buyers with the confidence that comes from sourcing from recognized suppliers with documented fitment data. Proper head bolt torque sequence and head gasket compression thickness selection directly affect combustion sealing integrity and engine longevity, and selecting the correct specification for the specific application is the most important step before any installation. Whether the goal is restoring OEM function, addressing a worn component, or improving beyond factory performance, this collection addresses each need with confirmed-fit parts. Popul...
View Head Components Products
Head Stud & Bolt Kits
This collection covers cylinder head components including head gaskets, head studs, and complete head assemblies for performance engine builds and high-output applications, serving vehicle owners and builders who need reliable components for maintenance, restoration, or performance enhancement. Arp head studs, cometic head gaskets, and edelbrock or afr cylinder heads are foundational brands in performance cylinder head work, providing buyers with the confidence that comes from sourcing from recognized suppliers with documented fitment data. Proper head bolt torque sequence and head gasket compression thickness selection directly affect combustion sealing integrity and engine longevity, and selecting the correct specification for the specific application is the most important step before any installation. Whether the goal is restoring OEM function, addressing a worn component, or improving beyond factory performance, this collection addresses each need with confirmed-fit parts. Popul...
View Head Stud & Bolt Kits Products


