Powerstroke Products 6.0 20mm Head LOADED HD Valve springs 20 Inch Matched ports and a merged

Matched ports and a merged runner design reduces exhaust backpressure

1x 1/2" Pull Wire (RFB-777-RFAB)

Premium Quality AC Delco REMAN starter motor assembly

Stop dealing with wires

6L Duramax LLY LBZ

Powerstroke Products 6.0 20mm Head LOADED HD Valve springs 20 Inch Matched ports and a mergedPowerstroke Products 6. 0 Head, Sold Each. These heads with the heavy duty 100# valve springs are an excellent choice for upgraded Turbo and mild tuning. More control over valve train means more useable power. No Core all new parts. Heads come with new valves, Iron valve guides , valve seats, valve stem seals and of course the Springs. Ready to install with injector cups already pressed in. These heads carry a one year unlimited mileage warranty from