SBC Main Stud Kit Dart SHP Block

The ARP SBC Main Stud Kit Dart SHP Block (MPN 134-5605) is a chromoly main stud fastener set engineered for small block Chevy applications requiring high-strength bottom-end security. Designed for 4-bolt main configurations, this kit delivers the clamping force and material integrity needed to maintain crankshaft stability under sustained load—whether in street performance, engine rebuild, or competition service. The black oxide finish provides corrosion resistance in typical engine bay environments.

Chromoly construction offers superior tensile strength compared to standard steel studs, critical for applications where peak cylinder pressure and rotational forces demand precision fastening. The hex nut design ensures secure grip during installation and resists vibration-induced loosening over extended service intervals. ARP's Dart SHP specification confirms these studs meet the exact dimensional and material requirements for this block variant, eliminating guesswork during assembly. Proper torque sequencing with calibrated tools is essential—ARP specifications must be followed to achieve the engineered preload.

This kit suits rebuilders, engine builders, and performance enthusiasts restoring or upgrading small block Chevy platforms. Whether performing a stock rebuild or preparing an engine for higher output, main stud quality directly affects bottom-end durability and longevity. Serious builders specify ARP fasteners at this critical junction to eliminate main bearing cap movement and the failures that follow.

TacticalSurplusUSA stocks ARP fastener kits for engine builders and professionals who understand that superior materials in critical applications yield measurable reliability gains.