Login for Access to Member Pricing

Holley

HOLLEY GM LS1 Valve Cover Set - Polished

MPN: 241-90 Catalog #: 001509366 Category: Valve Covers Check Vehicle Fitment

Product Details

Valve Cover - Stock Height - Baffled - Coil Mounting Bosses - Aluminum - Polished - GM LS-Series - Kit

LS Valve Cover; Polished Finish;

Holleys cast aluminum valve covers for GM LS engines provide a fresh, refined look without the need to relocate the coils. There is no question the factory coil on cover design give the LS that signature high-tech look, but the factory brackets and coil location leave room for improvement. Clean up that signature look with Holleys LS Valve Covers! They incorporate a radiused shape, angled coil mounting, and a billet fill cap. Plus, the coils mount directly to the cover with no need for a bracket in-between. They fit most popular LS series engines and come in Black Krinkle, Satin, Natural Cast, and Polished. Or, paint to match your vehicles theme!

Fitment: Holley s cast aluminum valve covers for GM LS engines provide a fresh; refined look without the need to relocate the coils. There s no question the factory coil on cover design give the LS that signature high-tech look; but the factory brackets and coil location leave room for improvement. Clean up that signature look with Holley s LS Valve Covers! They incorporate a radiused shape; angled coil mounting; and a billet fill cap. Plus; the coils mount directly to the cover with no need for a bracket in-between. They fit most popular LS series engines and come in Black Krinkle; Satin; Natural Cast; and Polished. Or; paint to match your vehicle s theme!

DETAILS:

Part Number 241-90 SPECS:

DETAILS:

  • Holley Performance Emission Code 4: This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
  • Engine Valve Cover Set
  • LS Valve Cover
  • Angled Coil Mounts Deliver A Smooth Clean Look
  • Billet Aluminum Oil Fill Cap
  • Clearance For .750 in. Lift Cam With Stock Style Rocker Arms
  • Eliminates Unsightly OE Style Coil Brackets
  • Holley LS Covers Use Proven OE Style Baffles and Vents
  • Retain The High-Tech Look and Performance Of Coil On Cover
  • Reuses Original Gaskets And Bolts
  • VALVE COVER; LS POLISHED FINISH
  • Valve Cover Set

Part Number 241-90 SPECS:

  • Cylinder Head Type: Standard
  • Engine Make/Size: Chevy Small Block LS1
  • Finish: Polished
  • Material: Cast Aluminum
  • Valve Cover Style: Tall
  • WARNING CA Proposition 65: No

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Holley
Part Number
241-90
Catalog Number
001509366
Product Line
Valve Covers
Category
Engines & Parts
Type
Valve Covers
UPC / Barcode
090127676905
Length
20.30 in
Width
11.00 in
Height
2.90 in
Weight
7.00 lb
Ship Alone
No
Air Restricted
No

Shipping & Availability

Current status 2 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 2 available as of 6/4/2026.

Reviews & Questions

Real product feedback when available, plus quick ways to get fitment or product help.

Ask a Question
Need fitment help? Send us your year, make, model, engine, and the part number.
Already bought it? Reviews help other LMPerformance customers choose the right part.
Product question? We can help with specs, shipping, availability, and install details.

Other Popular Valve Covers

$463.76
^