Late Model Engines Billet Valve Covers:
- Clears factory GM rockers as well as most popular roller rocker systems
- Dual -10 AN breather bosses
- Includes two -10 AN male end fittings and two -10 AN cap-off fittings
- Includes/uses factory GM gasket
- Includes Stainless hardware w/ O-ring washers
C8 LT2 engines do not have an open crankcase like the LS and Gen V LT's Using the breather on our covers only works when we have built your engine and modified the valley to let the crankcase breathe correctly. These covers will still work on factory engines, but you can not expect your engine to breathe correctly unless it has been modified to do so.