2001-2016 Duramax PPE Valve & Spring Kit (110090080)2001 2016 Duramax PPE Valve & Spring Kit (110090080) The intake exhaust valve, valve seal, spring, spring seat retainer keeper kit comes standard with each PPE Duramax Cast Iron Cylinder head. This kit is specially designed for the GM 6. 6L Duramax and contains the components for both driver and passenger side cylinder heads. The valves are fully nitridated and reinforced for superior durability and reliability. The tapered valve springs higher spring

When the mainline pressure is increased with upgrades such as a high-performance transmission kit

ARP main and head studs are a must have item

The up-pipes feature a bellowed design that allows for expansion and contraction without need to rely on a factory gasket

5-2005 Duramax LLY Dynomite Diesel Reman Injector 75HP 30% Over (DDPLLY-75)

45″ tappets

As boost pressure increases

The PPE Race Fuel Valve

EDT+ provides significantly increased ignition efficiency with all diesel fuels

9L Nozzle Set: Stage 1

then shut engine down

PPE OEM Up-Pipes are a direct bolt-on to your factory manifolds

9L Dynomite Diesel Reman Injector 200HP 60% Over (DDP325-200)