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1 4
Top Street Performance

Pro Series Chevy Big Block 4-Bolt Main Bolt Kit

Pro Series Chevy Big Block 4-Bolt Main Bolt Kit

SKU: 722-13249

$74.80
$74.80 $85.00
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

  • Compatible with Chevy Big Block engines.
  • Composed of 35 chromoly steel for maximum tensile strength
  • Black oxide finish and oil coating for rust and corrosion protection

Description

TSP's fasteners are composed of 35 chromoly steel for a minimum tensile strength of 190,000 PSI. Threads are rolled after heat treatment and then tested for tensile and yield strength. All hardware is then given a black oxide finish and oil coating to protect from rust and corrosion.

Specs

Torque 4 steps, to 120 ft-lbs
Color Black
Fastener Style Bolt
Grade Performance
Head Style Hex
Material 35 Chromoly Steel
Quantity Sold as a kit

Engine Fitment

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

Q&A


The V Series intake manifold features a precision-machined billet aluminum construction with a modular design, making installation and maintenance easier while also improving airflow and engine performance. It also provides a premium engine-bay appearance for LS builds.

Emissions Notice

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