Description
ARP Big Block Chevy OEM Stainless Steel 12-Point Head Bolt Kit – Outer Row Only
Upgrade the outer-row cylinder head hardware on your Big Block Chevrolet engine with the ARP OEM Stainless Steel 12-Point Head Bolt Kit. Designed specifically for the outer row of cylinder head fasteners, this kit provides high-quality ARP stainless steel hardware for performance engine builds, rebuilds, restorations and custom applications.
ARP part number 135-3704 is specifically identified as the Big Block Chevy OEM Outer Row Only Stainless Steel 12-Point Head Bolt Kit. This is an application-specific supplemental head bolt kit intended for the outer row only and should not be considered a complete cylinder head bolt kit.
Product Features:
- ARP Cylinder Head Bolt Kit
- Designed for Big Block Chevrolet Engines
- Outer Row Cylinder Head Bolts Only
- OEM-Style Application
- Stainless Steel Construction
- 12-Point Fastener Head Design
- High-Quality ARP Fastener Construction
- Designed for Cylinder Head Retention
- Ideal for Performance Engine Builds, Rebuilds and Restorations
Specifications:
| Manufacturer | ARP (Automotive Racing Products) |
| Part Number | 135-3704 |
| Product Type | Cylinder Head Bolt Kit |
| Fastener Type | Bolt |
| Head Style | 12-Point |
| Material | Stainless Steel |
| Configuration | Outer Row Only |
| Engine Family | Chevrolet Big Block |
| Fastener Location | Cylinder Head |
ARP Engine Applications:
- Chevrolet – Generic – Big Block
- Chevrolet – Big Block – 396
- Chevrolet – Big Block – 402
- Chevrolet – Big Block – 409
- Chevrolet – Big Block – 427
- Chevrolet – Big Block – 454
- Chevrolet – Big Block – 496
- Chevrolet – Big Block – 502
- Chevrolet – Big Block – 572
- Chevrolet – Big Block – Generic
Fitment Notes:
- Designed for OEM-style Big Block Chevrolet cylinder head applications.
- ARP lists 396, 402, 409, 427, 454, 496, 502 and 572 Big Block Chevrolet applications.
- ARP also lists generic Big Block Chevrolet applications.
- This kit contains hardware for the outer row only and is not a complete cylinder head bolt set.
- Features stainless steel construction and 12-point fastener heads.
- Designed for the cylinder head fastening location.
- Verify cylinder head and engine block configuration before installation.





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