SKU: 230-7003 | UPC: 672036008390
ARP Chevrolet V8 High Volume Hex Oil Pump Stud Kit – Small Block 1955+ Big Block 1962+
ARP 230-7003 delivers replacement studs for Chevrolet V8 high volume hex oil pumps on small block 262-400ci engines from 1955 and big block Mark IV 396-454ci from 1962 plus Gen V/VI 454ci. Stud design secures the pump with even clamping to maintain oil pressure under high RPM. Built for racing and street performance with hardware that resists fatigue in demanding conditions.
Key Features
- Genuine ARP Fasteners: 8740 chrome moly steel construction rated at 200,000 psi tensile strength for dependable hold
- Stud Configuration: Eliminates thread wear in engine block and delivers repeatable torque values
- Hex Head Design: Allows precise wrenching without slipping during pump installation
- Matched Hardware: Includes 12-point nuts and hardened washers for complete assembly
- Corrosion Protection: Black oxide finish guards against rust in oil gallery environments
Product Notes
- Inspect oil pump pickup clearance after installation to avoid contact
- Re-check torque after first 100 miles or heat cycle
- Lightweight design ships fast with minimal handling fees
Installation Notes
- Professional installation recommended.
- Chase block threads with tap and apply ARP Ultra-Torque lubricant on studs
- Torque studs to 25 ft-lbs in crisscross pattern then nuts to 22 ft-lbs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955- | Chevrolet | Small Block V8 | 262-400ci |
| 1962-1990 | Chevrolet | Big Block Mark IV V8 | 396-454ci |
| 1991-2000 | Chevrolet | Big Block Gen V/VI V8 | 454ci |
Why Choose ARP?
- Proven in NHRA Top Fuel and NASCAR engines for decades
- Thru-hardened fasteners resist stretching under boost and heat
- Precision rolled threads for maximum grip in aluminum and iron blocks
Frequently Asked Questions
- Q: Will this fit Melling M-55HV high volume oil pump on SBC?
A: Yes fits all hex drive high volume pumps on Chevy small and big block V8s including Melling Milodon and Moroso - Q: What steel alloy and finish does ARP use?
A: 8740 chrome moly alloy heat treated to 200,000 psi with black oxide coating for corrosion resistance and lubricity - Q: What is the ARP warranty on this kit?
A: Lifetime warranty against breakage when installed and torqued per ARP instructions
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact ARP box 6 x 4 x 1 inches
- Weight: 0.13 lbs
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