• Top Street Performance Chevy Big Block Timing Cover Gasket - for street and performance builds
  • Top Street Performance Chevy Big Block Timing Cover Gasket - front view - for street and performance builds
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Top Street Performance

Chevy Big Block Timing Cover Gasket

Chevy Big Block Timing Cover Gasket

SKU: SP9095

$5.00
$5.00 $5.50
Shipping calculated at checkout.

Out of 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

  • Fiber gasket seals the one-piece timing cover, blocks oil leaks
  • Crankshaft seal included for a complete leak-free installation
  • Fits Chevy big block V8 Gen II (Mark IV): 396, 402, 427, 454 CID
  • Confirm one-piece timing cover casting before ordering — not for 2-piece

Description

This fiber timing cover gasket is designed to seal a one-piece timing cover on Chevy big block Gen II (Mark IV) engines, helping prevent oil leaks at the timing cover-to-block junction. It covers 396, 402, 427, and 454 CID applications.

A crankshaft seal is included, so this gasket is ready for a complete, leak-free installation without sourcing a seal separately. Before ordering, confirm your timing cover is a one-piece casting — this gasket is not designed for two-piece timing covers.


Applications
Fits Chevrolet big block V8 Gen II (Mark IV) engines: 6.5L/396, 6.6L/402, 7.0L/427, and 7.4L/454 CID. Common uses include Chevelle, Camaro, Corvette, and C/K truck big block Chevy builds, along with hot rod and muscle car big block Chevy engine installations.

Installation
One-piece timing cover gasket — confirm your timing cover is a one-piece casting before ordering, since this is not designed for two-piece covers. Verify bolt hole alignment (10 mounting holes) matches your timing cover before installing. Crankshaft seal is included.

Specs

Material Fiber
Configuration One-Piece
Mounting Hole Quantity 10
Crankshaft Seal Included Yes
Quantity Sold Individually

Engine Fitment

COMPATIBLE WITH
CHEVROLET BIG BLOCK V8 GEN. II (MARK IV)
• 6.5 L / 396 in³
• 6.6 L / 402 in³
• 7.0 L / 427 in³
• 7.4 L / 454 in³

NOTES
• One-piece timing cover gasket design — confirm your timing cover is a one-piece casting before ordering
• Covers Gen II (Mark IV), Gen V, and Gen VI big block Chevy engines — confirm your specific generation and timing cover style before ordering, as bolt pattern and gasket profile can vary across generations even at the same displacement
• Crankshaft seal included
• Verify bolt hole alignment matches your timing cover before installation

COMMON VEHICLE APPLICATIONS
• Chevrolet big block V8 street and performance engines
• Chevelle, Camaro, Corvette, and C/K truck big block Chevy builds
• Hot rod and muscle car big block Chevy engine installations

Q&A

Does this gasket fit a one-piece or two-piece timing cover?
One-piece only. Confirm your timing cover is a one-piece casting before ordering — this gasket is not designed for two-piece timing covers.

What engines does this gasket fit?
Chevrolet big block V8 Gen II (Mark IV) engines: 396, 402, 427, and 454 CID.

Is the crankshaft seal included?
Yes — a crankshaft seal is included for a complete, leak-free installation.

Does this fit a Gen V or Gen VI big block Chevy?
No — this gasket is designed for Gen II (Mark IV) big block Chevy engines only.

How many mounting holes does this gasket have?
10.

What's this gasket made of?
Fiber.

Is this sold individually or as a set?
Sold individually.

Emissions Notice

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