***Price Is per side, will need 2 for a complete set.***
- Reduced bore distortion
- Improved engine performance
- Reduced oil consumption
- Improved durability
- Black Diamond head gaskets
If your truck motor was built between 2003-1/10/2006 you have the 18mm Dowel.
If your truck motor was built after 1/11/2006 you will have the 20mm Dowel.