Description
ARP Big Block Chevy w/ Brodix Aluminum Block & Dart Pro 1 or 360 Heads Head Stud Kit
Upgrade the cylinder head hardware on your Big Block Chevrolet engine equipped with a Brodix aluminum block and Dart Pro 1 or 360 cylinder heads with the ARP Head Stud Kit. Designed specifically for this aftermarket Big Block Chevy combination, this kit provides high-strength ARP studs for secure and consistent cylinder head clamping in high-performance and racing engine builds.
ARP part number 135-4303 is specifically identified as the Big Block Chevy with Brodix Aluminum Block with Dart Pro 1 or 360 Heads Head Stud Kit. ARP specifies 200,000 PSI, 7/16″ diameter head studs for this kit. When installed using ARP Ultra-Torque Fastener Assembly Lubricant, ARP specifies tightening the nuts in three equal steps to a final torque of 80 ft-lbs.
Product Features:
- ARP Cylinder Head Stud Kit
- Designed for Big Block Chevrolet Engines
- Designed for Brodix Aluminum Engine Blocks
- Designed for Dart Pro 1 or Dart 360 Cylinder Heads
- 7/16″ Diameter Head Studs
- 200,000 PSI Fastener Rating
- Stud-Style Cylinder Head Fasteners
- High-Strength ARP Fastener Construction
- Designed for Secure and Consistent Cylinder Head Clamping
- Ideal for High-Performance and Racing Engine Builds
Specifications:
| Manufacturer | ARP (Automotive Racing Products) |
| Part Number | 135-4303 |
| Product Type | Cylinder Head Stud Kit |
| Fastener Type | Stud |
| Stud Diameter | 7/16″ |
| Fastener Rating | 200,000 PSI |
| Block Manufacturer | Brodix |
| Block Material | Aluminum |
| Cylinder Head Manufacturer | Dart |
| Cylinder Head Type | Pro 1 / 360 |
| Recommended Torque | 80 ft-lbs with ARP Ultra-Torque |
| Engine Family | Chevrolet Big Block |
| Fastener Location | Cylinder Head |
ARP Engine Applications:
- Chevrolet – Big Block – Brodix
- Chevrolet – Big Block – Dart
- 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 specifically for Big Block Chevrolet applications using a Brodix aluminum engine block with Dart Pro 1 or Dart 360 cylinder heads.
- ARP lists Chevrolet Big Block Brodix and Dart applications.
- ARP also lists 396, 402, 409, 427, 454, 496, 502 and 572 Big Block Chevrolet engine applications.
- Uses 7/16″ diameter cylinder head studs rated at 200,000 PSI.
- ARP specifies installing the studs into the block hand tight only.
- If the cylinder head studs protrude into a water jacket, ARP specifies using ARP Thread Sealer on the block-side threads.
- ARP specifies a final torque of 80 ft-lbs with ARP Ultra-Torque, reached in three equal steps using the manufacturer’s recommended torque sequence.
- This kit should not be treated as a universal Big Block Chevy head stud kit because it is specifically configured for a Brodix aluminum block with Dart Pro 1 or 360 cylinder heads.
- Verify the exact Brodix block and Dart cylinder head combination before installation.





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