Holley 2-PIECE CAST ALUM. V/C, GLOSS RED FINISH

Holley's new 2-Piece LS valve covers are a great way to update the look of your LS engine without the use of complicated adapter systems or the hassle of remote coil relocation. These modular LS valve covers feature an OE height, internally baffled LS valve cover base with integrated coil mounts for popular Gen I and Gen V style LS coil bodies, and a vintage finned overcover that hides the unsightly LS coils and messy wiring harness - allowing the full performance benefits of coil-on-cover ignition setups without the robotic styling. Each modular coil cover features our Vintage Series style fins with a script Holley logo that seamlessly blends with other finned Holley dress-up accessories such as our LS valley covers and 14" round air cleaners. The coil cover also features cast-in provisions for the spark plug boots and coil wiring harness so no extensions or custom wiring is required.

Each 2-Piece LS valve cover set includes a low-profile billet oil fill cap, hardware and spacers for mounting both versions of LS coil bodies, and 12-point dress up hardware and grommets for the coil covers. These modular LS valve covers are available in 5 unique finishes: natural cast, polished, satin black, factory orange, and gloss red (black, factory orange and gloss red sets feature machined fins and logo details).

Important Downloads:

• Instructions for Part #241-174

• Cast aluminum 2-Piece LS valve covers designed to mount and hide both Gen I and Gen V style LS coil bodies
• Retain the performance of factory coil-on-cover ignition without the unsightly styling
• Base fits LS1, LS2, LS3, LS6 and LS7 engines
• Base features internally baffled ventilation system
• Clearance for .750" lift cam with stock style rocker arms
• Coil cover features Holley Vintage Series style fins & script logo with cast-in wiring provisions
• No coil relocation, wire harness extensions, or custom spark plug wires required
• Includes low-profile billet oil fill cap
• Includes all necessary coil mounting and dress-up hardware

• Application: GM LS Engines
• Baffle Included: Yes
• Coil Mounting Studs: Yes, on Baseplate
• Emission Code: 4
• Finish: Gloss Red
• Gasket Included: No
• Gromment(s) Included: No
• Height: 3.75"
• Logo: Holley Script
• Material: Cast Aluminum
• Mounting Hardware Included: Yes
• Oil Fill: Yes
• Product Type: Valve Cover
• Style: 2-Piece LS
• Valvetrain Clearance: .750" lift cam with stock style rocker arms
• Warranty: Limited 90 Day

• These valve covers feature integrated coil mounts designed specifically to fit Gen I and Gen V style LS coil bodies (OE and most aftermarket). More info and part numbers for each applicable LS coil body is listed below:
• Gen I Style LS Coil Body P/N's:
• GM: 12558948
• MSD: 8262, 82628 (set of 8) / 82623, 826238 (set of 8)
• AC Delco: D580
• Gen V Style LS Coil Body P/N's:
• GM: 12570616
• Holley: 410004
• Accel: 140043, 140043-8 (Set of 8) / 140043K, 140043K-8 (Set of 8)
• MSD: 8265, 82658 (set of 8) / 82653, 826583 (set of 8)
• AC Delco: D510C
• Coils Not Included
• OE LS valve cover mounting hardware and OE LS valve cover gaskets may be reused with these valve covers, but replacements may be necessary over time. Carefully inspect all components that will be reused before installation to determine if a replacement part may be necessary.