94.5-03 7.3L CNC Fabrication Stage 3 Cylinder Head Set - 421028 Husqvarna FE350W 2001-2004 GMC Sierra 2500/3500 6

2001-2004 GMC Sierra 2500/3500 6

USA Standard Gear driveshafts are built new from high-grade steel and many components have been upgraded from OEM to eliminate known issues

while the high misalignment spacers included with our chromoly rod end provide tons of flex and will not limit suspension travel

The stock valve springs in your Cummins engine are not designed to handle the increased engine RPM or higher boost levels that are common in modified applications

It also helps to reduce bump steer

94.5-03 7.3L CNC Fabrication Stage 3 Cylinder Head Set - 421028 Husqvarna FE350W 2001-2004 GMC Sierra 2500/3500 6CNC Fabrication Model 421028 Upgrade your 94. 5 03 7. 3L Powerstroke with these CNC Fabrication, LLC stage 3 performance cylinder heads. These heads are designed to be installed on engines in the 800hp + range. FEATURES: In house Machined on our Sunnen seat & guide machine to exceed OEM specifications using the latest tooling Mag particle inspection Pressure tested Inconel intake and exhaust valves CNC Fabrication Stage 2 155lb beehive valve spring