Allstar Performance's LS3 billet valley cover is machined from aluminum and finished in black anodize for a durable, corrosion resistant look. The cover comes complete with stainless hardware and an O-ring for a sealed installation. It is designed to fit Gen IV/LSX engine blocks, including LS2, LS3, LS4, LS7, LS9, LSA, L92, L94, L96, L99 and related Vortec 4.8L/5.3L/6.0L/6.2L truck engines from 2005 and newer.
- Material: Aluminum
- Finish: Black Anodized
- Hardware: Stainless hardware and O-ring included
- Engine Fit: Gen IV/LSX (LS2, LS3, LS4, LS7, LS9, LSA, L92, L94, L96, L99 and related Vortec 4.8L/5.3L/6.0L/6.2L truck engines, 2005+)
- Thickness: 0.25 in
Frequently Asked Questions
What engines does this valley cover fit?
This billet valley cover is designed for Gen IV/LSX engines, including LS2, LS3, LS4, LS7, LS9, LSA, L92, L94, L96, L99 and related Vortec 4.8L/5.3L/6.0L/6.2L truck engines from 2005 and newer.
What is the cover made from and how is it finished?
It is machined from billet aluminum and finished in black anodize.
Does it come with hardware?
Yes, it includes stainless hardware and an O-ring for a sealed installation.
What is the part number for this cover?
The part number is ALL90107.
Is there a version for Gen III LS engines?
Yes, Allstar offers the ALL90106 LS1 billet valley cover for Gen III applications; this ALL90107 is the Gen IV/LSX version.

