Thread Cleaning Chaser M16 x 2 Gator Fasteners LLY A machined groove for the

A machined groove for the o-ring gasket ensures a leak-free seal

The XDP Performance Valve Springs and Retainer Kit XD386 are a perfect upgrade for your modified 2001-2016 GM 6

Core and crate return required - all paperwork and instructions for return included with the new cylinder head

They displace 285cc of fuel and we pair these with 75%-150% nozzles

The XD328 Duramax Radiator Drain Pipe helps you keep things clean and controlled during routine maintenance

Thread Cleaning Chaser M16 x 2 Gator Fasteners LLY A machined groove for theThread Cleaning Chaser M16 x 2 Gator Fasteners Thread Cleaning Chasers are necessary to ensure fasteners are properly torqued and to the correct depth. Details: Diesel Steel Powdercoat Black Each