LS Valve Covers From Billet Specialties Adds A Big-Block Chevy Look

LS Valve Covers From Billet Specialties Adds A Big-Block-Chevy Look

Randy Bolig
May 22, 2019

If you have been wanting to do an LS-swap to your hot rod, but you would really like to keep the look of a classic Chevy, how about an LS that looks like a big block? Thanks to Billet Specialties, you can have just that. The billet-aluminum accessory company has just developed a valve-cover conversion kit that allows the use of big-block Chevy valve covers on the LS engine.

LS Valve covers
Add a traditional big block look to your modern LS.

The conversion plates are an interesting concept, as they are actually the LS’ valve covers. Each side has a threaded oil-fill cap and baffled ¼-inch NPT-threaded breather port. The LS coils mount directly to the top of this billet cover, and have recesses that allow the spark plug wires to exit above each plug for a clean look. The coil harness exits at the rear with ample room for the harness plug. You can finish the big block look by installing your choice of a big block valve covers on top to hide it all.

Now you have no reason to not update to an LS engine, because the LS to big-block Chevy valve cover adapter kits have answered your prayers.

Ease of installation

Accepts the OE LS gaskets for a leak-free seal and uses both late-model LS3-style coils;

  • Flat P/N 12611424 / AC Delco D510C
  • Round P/N 12573190 A/C Delco D514A

Comprehensive instructions are included with each pair of adapters.

LS valve covers
The adapter is actually the LS valve cover that accepts a big-block Chevy valve cover.

Additional Info:

  • Precision machined from 6061-T6 aluminum
  • Works with O.E. tin or aftermarket big-block Chevrolet valve covers
  • Works with either round LS3 coils (AC Delco D514A) or flat LS3 coils (AC Delco D510C)
  • Retains LS gasket for a leak free seal
  • Recessed wire channels route ignitions wires toward plugs
  • Hidden oil-fill cap (one on each side)
  • NPT baffled-breather vent in the back of each valve cover
  • Stainless hardware included
  • Made in the USA