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Proform 141-257K1

Valve Covers GM LS V-8 Diecast Aluminum with Raised LSX Logo in Orange Finish Kit

Proform 141-257K1
Easy Kit


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Proform 141-257K1 Valve Covers GM LS V-8 Diecast Aluminum with Raised LSX Logo in Orange Finish Kit $431.34
Valve Cover Kit GM LS V-8
  • Diecast Aluminum
  • Orange Finish
  • Raised LSX Logo
  • GM LSX V-8 Valve Covers
  • LS3/LS7 Coil Relocation Brackets
  • MSD 8.5mm Red Super Conductor Plug Wire Set

  • Proform 141-257K1 Details

    Chevy LS Valve Covers

    Kit Includes:
  • Proform GM LSX V-8 Valve Covers - 778-141-257
  • Proform Coil Relocation Brackets - 778-69521
  • MSD 8.5mm Super Conductor Spark Plug Wires - 121-39849

    Attention LSX-DR cylinder head owners: These valve covers will fit LSX-DR heads and clear the shaft mounted valvetrain. The mounting bolts included with these LS covers are not compatible with the LSX-DR cylinder heads. LSX-DR owners will need to purchase a LSX-DR mounting bolt kit, Proform part #778-66330.

    Internal Clearance Note: The following rocker configurations will require the valve cover to be slightly modified: Jesel part numbers: 549-KSS-317070, 549-KSS-317575, and 549-KSS-318080.

    Additional Notes:
  • Passenger side has oil filler holes
  • Gaskets Not Included. Recommend Valve Cover Gasket: 555-210870

  • Want to dress-up your LS family Chevy engine and wondering what to do with those pesky coils in such a confined space? The die-cast aluminum LS Slant-Edge valve covers allow you to personalize and customize the appearance of your engine. In addition, Proform has designed an attractive way to lift your coils off your valve cover so you can see the Chevrolet emblem. A unique rail mounting system attaches to the threaded holes on the valve cover, and the individual coils attach to the rail so they can be mounted in multiple positions! Coil brackets and valve covers include necessary hardware, coil extension harnesses for altering engine location sold separately.

    Note: Stock spark plug wires are not long enough to work with this coil bracket. MSD's 13" spark plug wires, part no. 121-39849 are recommended. 13-15" wires are needed if making your own wires.

    JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.

    Will these work on a ls 5.3? And it's carb not efi

    Asked by: AJ89s10
    This should work fine on your LS 5.3 engine.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-27
    • y_2017, m_12, d_15, h_1CST
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