ARP 430-6803 Lower Pulley Bolt Kit for Chevrolet Small Block. Big Block. 3-piece. ARP Stainless. 12pt ymm_30 High-quality sealed sensor housings are

High-quality sealed sensor housings are virtually impervious to automotive fluids (360-degree welded wetted area)

Specifications Overall Length 1

Evolution Link Pipe Set (Titanium) was tested and developed together with Slip-On Line (Titanium)

The system achieves over 45% weight reduction compared to the stock exhaust

Dual-character valve-controlled sound

ARP 430-6803 Lower Pulley Bolt Kit for Chevrolet Small Block. Big Block. 3-piece. ARP Stainless. 12pt ymm_30 High-quality sealed sensor housings areCHEVROLET Small Block, Big Block, 3 piece, ARP Stainless, 12pt lower pulley bolt kit Specifications Socket Size(s) 3 8 12pt High Performance 180,000psi UHL 0. 750 Thread Size 3 8 16 washers included Fits Following Engines: CHEVROLET Small Block, Big Block.