PRW Industries 1045442 BBC Main Stud Kit for 1965–2000 Big Block Chevy 4-Bolt Mains

Upgrade the foundation of your Big Block Chevy engine with the PRW Industries 1045442 Main Stud Kit. Designed for 4-bolt main applications from 1965 through 2000, this kit provides a strong, reliable fastening solution for performance engine builds, rebuilds, and high-load applications. The stud-style design helps maintain consistent clamping force while supporting proper main cap alignment and installation.
The PRW Industries 1045442 kit includes 12-point nuts and chromoly studs finished in black oxide for added surface protection and a professional appearance. Chromoly construction delivers the strength required for demanding engine environments, while the 12-point nut profile allows convenient wrench access during assembly. This kit is intended for Big Block Chevy applications using compatible 4-bolt main blocks and should be installed according to the engine builder’s specifications.
Whether you are assembling a street-driven performance engine, a race-oriented powerplant, or a heavy-duty restoration, the PRW Industries 1045442 Main Stud Kit helps provide dependable main cap retention and consistent hardware performance. Verify block compatibility, thread engagement, clearances, and torque requirements before installation. The kit is not air restricted and does not require truck freight shipping.

Features:

• Application: Fits compatible 1965–2000 Big Block Chevy 4-bolt main applications

• Hardware Type: Main stud kit with 12-point nuts

• Material: High-strength chromoly construction

• Finish: Black oxide coating for surface protection and a clean appearance

• Engine Compatibility: Designed for Big Block Chevy performance and replacement builds

• Installation: Supports consistent clamping force and secure main cap retention

• Shipping Classification: Not air restricted and not truck freight only