The 146-HSP also known as the HSP Billet Valve Covers for the 2001-2004 LB7 Duramax-equipped Chevrolet and GMC trucks. These HSP Billet Valve Covers are a work of art and will truly set you apart from the next guy at the track or at the show. Why Would you need the HSP Billet Valve Covers? The HSP Billet Valve Covers are never a requirement. However, they are something that should be viewed as a step to taking things to the next level. Now what we mean by that is the factory upper valve covers really look plain and just don't do justice to what many of you have done to the LB7 engine. With there being so many HSP Diesel options to cleaning up the engine bay and adding more power you need to show off the rest of that engine. That is where the HSP Billet Valve Covers come into play and we think it will be your favorite part of the engine bay. What do the HSP Billet Valve Covers do Differently? The LB7 engine is a great engine and with minimal changes, it is ready for whatever you throw at it. However, as we said before it's plain-looking. It just doesn't catch your eyes and HSP Diesel wanted to do something about that. The HSP Billet Valve Covers are the world's first full Billett upper valve cover. Made from 6061 T6 Aluminum that is CNC machined for a perfect fit and unreal look. The HSP Billet Valve Covers also include the fuel line support bracket, provisions that allow the factory fuel FICM location, and works with our ventilation kit if wanted. With the ability to have the HSP Billet Valve Covers powder coated in a large lineup of colors this will truly set you apart from the crowd as soon as you pop the hood. What comes with the HSP Billet Valve Covers? (1) Drivers side Billet Upper Valve Cover (1) Passenger side Billet Upper Valve Cover (22) M6x1.0x16mm Socket Cap Bolts (1) M8x60 Double End Black Stud (2) M8x50 Double End Black Stud (3) M8x40 Double End Black Stud (6) M8 - 1.25 Zinc Finish Steel Jam Nut (2) Aluminum Spacer (5/8 OD, .382 ID, 1-1/16 Long) (1) Aluminum Spacer (5/8 OD, .382 ID, 1-1/2 Long) (2) Aluminum Spacer (5/8 OD, .382 ID, 3/4 Long) (1) Aluminum Spacer (5/8 OD, .382 ID, 3/4 Long) (4) 3/8 Inch - 16 x 7/8 Inch Yellow Zinc Bolt What Does the HSP Billet Valve Covers Fit? LB7: 01-04 VIN Code 1 How do people know the VIN code? Engine code is dictated by the 8th character of the VIN number. The 10th character is the year of the truck. Overview Billet 6061 T6 Aluminum CNC Machined Powder coat options to stand out All new Hardware Fits better than the factory Our Warranty HSP No BS Limited Lifetime Warranty At HSP we believe in our products and we stand firmly behind every single one that leaves our facility. For years we have taken care of almost everything and anything that our customers had issues with, but we didn't have a set in stone warranty. We have always gone above and beyond for our customers which set us apart from the rest. We will continue that same standard, but now we are taking things to the next level.
