ARP 535-9601 Engine & Accessory Bolt Kit for CHEVROLET Big Block SS hex ymm_30 5/16-24 hex flanged nut

5/16-24 hex flanged nut

The optimized design improves exhaust gas flow

including the elimination of main cap walk and fretting

Air Filter Material: Non-woven Synthetic

Water pump bolts

ARP 535-9601 Engine & Accessory Bolt Kit for CHEVROLET Big Block SS hex ymm_30 5/16-24 hex flanged nutIts easy to assemble a show quality engine when you use ARPs handy Engine & Accessory Fastener Kit. Virtually everything you need comes completely organized in one convenient package (no need to deal with twelve different part numbers)! More importantly, each and every fastener is superior in strength to the OEM bolts, and also significantly better than hardware grades (even Grade 8). You have a choice of two premium quality materials and finishes.