• Top Street Performance GM LS1 / LS6 Finned Aluminum Engine Valley Cover - Black - for street and performance builds
1 1
Top Street Performance

GM LS1 / LS6 Finned Aluminum Engine Valley Cover - Black

GM LS1 / LS6 Finned Aluminum Engine Valley Cover - Black

SKU: 81045BK

$95.06
$95.06 $108.03
Shipping calculated at checkout.

In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Finned aluminum cover seals and dresses up the LS intake valley area
  • One-piece design includes mounting hardware — gasket sold separately
  • Fits GM LS1/LS6 and related Gen III/IV LS engines, 4.8L-6.0L
  • Confirm gasket pattern, knock sensor location & AFM/DOD before install

Description

This finned aluminum engine valley cover is built for GM LS1/LS6 and related Gen III/IV LS applications, supporting 4.8L, 5.3L, 5.7L, and 6.0L engine combinations where the correct valley cover layout is required.

Aluminum construction with a black finish upgrades the intake valley area while helping maintain a durable sealing surface for performance builds, restorations, and LS swaps. The one-piece cover design includes mounting hardware; gasket is sold separately. Confirm gasket pattern, knock sensor location, and AFM/DOD provisions before installation, since these can vary across the LS engine family.


Applications
Fits GM LS Series V8 engines: 4.8L/293 (LR4, LY2), 5.3L/325 (LM7, L59, L33, LC9, LH6, LY5, LMG), 5.7L/346 (LS1, LS6), and 6.0L/364 (LQ4, LQ9, LY6, L76, L96). Common applications include Chevrolet Silverado/GMC Sierra, Chevrolet Camaro/Corvette, Chevrolet Tahoe/Suburban/Yukon, and Pontiac GTO/G8, all LS-equipped.

Installation
One-piece configuration, 10 mounting holes. Mounting hardware included; gasket sold separately. Verify valley cover layout, gasket shape, knock sensor location, and AFM/DOD configuration before installation — some engines in this family (e.g., L76, L96) use Active Fuel Management, which affects valley cover provisions.

Specs

ColorBlack
ConfigurationOne Piece
Cover StyleFinned
Gasket IncludedNo
Grade TypePerformance
Hardware IncludedYes
MaterialAluminum
Mounting Hole Quantity10

Engine Fitment

COMPATIBLE WITH
GM LS SERIES V8 ENGINES
• 4.8L / 293 in³ (LR4, LY2)
• 5.3L / 325 in³ (LM7, L59, L33, LC9, LH6, LY5, LMG)
• 5.7L / 346 in³ (LS1, LS6)
• 6.0L / 364 in³ (LQ4, LQ9, LY6, L76, L96)

NOTES
Verify LS1/LS6-style valley cover layout, gasket shape, knock sensor location, and AFM/DOD configuration before installation.

COMMON VEHICLE APPLICATIONS
Chevrolet Silverado / GMC Sierra (LS equipped)
Chevrolet Camaro / Corvette (LS equipped)
Chevrolet Tahoe / Suburban / Yukon (LS equipped)
Pontiac GTO / G8 (LS equipped)

Vehicle Fitment

Q&A

What engines does this valley cover fit?
GM LS Series V8 engines: 4.8L (LR4, LY2), 5.3L (LM7, L59, L33, LC9, LH6, LY5, LMG), 5.7L (LS1, LS6), and 6.0L (LQ4, LQ9, LY6, L76, L96).

Does this include a gasket?
No — mounting hardware is included, but gasket is sold separately.

Do I need to worry about AFM/DOD compatibility?
If your engine uses Active Fuel Management (AFM/DOD) — common on L76 and L96 — confirm your valley cover provisions before ordering, since this can affect fitment.

How many mounting holes does this cover have?
10.

What's this cover made of, and what finish does it have?
Aluminum construction with a black finish and finned cover style.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.