• Top Street Performance Chevy Big Block Polished Aluminum with Seal - Cover Only Polished Aluminum 1-Piece Timing Cover
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Top Street Performance

Chevy Big Block Polished Aluminum Timing Cover with Seal - Cover Only

Chevy Big Block Polished Aluminum Timing Cover with Seal - Cover Only

SKU: SP8422

$81.95
$81.95 $90.15
Shipping calculated at checkout.

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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

  • 1-piece aluminum timing cover with a polished finish for a clean look
  • Seal included; designed for long water pump applications
  • Fits Chevy Big Block Mark IV (396/402/427/454) engines
  • Gaskets and bolts not included — sold as cover only

Description

Upgrade or replace your Chevy Big Block Mark IV timing cover with this 1-piece polished aluminum cover, designed for fitment-focused engine builds, rebuilds, and leak repair. It helps seal the timing chain area while giving the front of the engine a clean, finished appearance.

This is a plain-design, long-water-pump application cover — verify your engine uses a long (not short) water pump configuration before ordering, along with balancer clearance and sensor provisions. A seal is included, but gaskets and bolts are not — these should be sourced separately.


Applications
Fits Chevrolet Big Block V8 Gen II (Mark IV): 6.5L/396, 6.6L/402, 7.0L/427, 7.4L/454 in³, long water pump configuration only. Common on Chevelle, Camaro, Nova, C10/C-K trucks, Corvette, Impala, and Caprice big block applications, as well as street, strip, and rebuild builds.

Installation
Verify your engine uses a long water pump before ordering — this cover is not designed for short water pump configurations. Also confirm balancer clearance and sensor provisions before installation. Seal is included; gaskets and bolts are not included.

Specs

Cover MaterialAluminum
Cover FinishPolished
Cover Style1-Piece
Cover DesignPlain
SealIncluded
GasketsNot Included
BoltsNot Included

Engine Fitment

COMPATIBLE WITH
Chevrolet Big Block V8 Gen. II (Mark IV)
• 6.5L / 396 in³
• 6.6L / 402 in³
• 7.0L / 427 in³
• 7.4L / 454 in³

NOTES
• 1-piece timing cover, plain design, aluminum construction, polished finish.
• Includes seal; gaskets and bolts not included.
• Fits long-water-pump applications.
• Verify short vs. long water pump configuration, balancer clearance, and sensor provisions before installation.

COMMON VEHICLE APPLICATIONS
Chevrolet Chevelle / Camaro / Nova
Chevrolet C10 / C/K truck applications
Chevrolet Corvette / Impala / Caprice
Big block Chevy street, strip, and rebuild applications

Q&A

Does this fit a short water pump engine?

No. This timing cover is designed for long water pump applications only. Verify your water pump configuration before ordering.

Does this come with a gasket?
No. A seal is included, but the timing cover gasket and mounting bolts are not included and must be sourced separately.

What finish does this cover have?
Polished aluminum with a plain, one-piece design.

Will this fit a Big Block Chevy 454?
Yes. The 454 is covered under Chevrolet Mark IV Big Block applications, along with the 396, 402, and 427.

What do I need to check before installing this cover?
Confirm that your engine uses a long water pump configuration and verify harmonic balancer clearance and any required sensor provisions before installation.

Does this include the timing pointer?
No. The timing pointer is not included and must be purchased separately.

Emissions Notice

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