See all Engine products
Product thumb
Manley 4.000" Stroke Pro Series Lightweight Crankshaft w/ 58T Reluctor | Long Snout Chevrolet LS-7
$1190.53
Free Shipping

Manley 4.000" Stroke Pro Series Lightweight Crankshaft

The Manley 4.000" Stroke Pro Series Lightweight Crankshaft is a game-changer for performance enthusiasts looking to enhance their Chevrolet LS-7 engine. Designed with precision and engineered for excellence, this crankshaft is perfect for those who demand the best from their vehicle.

Key Features

  • Lightweight Design: The LW design significantly reduces overall weight, allowing for quicker revs and improved responsiveness.
  • High-Quality Material: Crafted from 4340 material forgings, ensuring durability and resilience under extreme conditions.
  • Advanced Heat Treatment: A multi-step heat treatment process coupled with nitriding boosts strength and longevity.
  • Precision Engineering: Stress relieved, shot-peened, and magnafluxed for optimal performance and reliability.
  • Smooth Operation: Micro-polished large radius journals (narrowed bearings required) provide a smooth surface for reduced friction.
  • Reluctor Wheel Options: Available with either a 24 or 58 tooth reluctor wheel to fit your specific setup.
  • Weight Reduction Features: Gun drilled mains and lightened rod journals contribute to an overall lighter assembly.
  • Fully Profiled Counterweights: Ensures balanced performance and stability during high RPM operation.

Specifications

  • Design: LW
  • Reluctor Wheel: 58
  • Stroke: 4.000"
  • Minimum Rod Length: 6.125"
  • Main Journal Diameter: 2.559"
  • Rod Journal Diameter: 2.100"
  • Bob Weight: 1800 grams
  • Total Weight: 51-53 lbs

Perfect Fitment

This crankshaft is specifically designed for the Chevrolet LS-7 lightweight engine with a long snout, making it an ideal upgrade for performance builds. Whether you’re racing on the track or enhancing your street performance, this crankshaft will help you achieve your goals.

Customer Reviews

Customers have praised the Manley 4.000" Stroke Pro Series Lightweight Crankshaft for its exceptional performance and reliability. Many have noted improvements in engine responsiveness and overall power delivery. Here are some highlights from trusted reviews:

  • "This crankshaft made a noticeable difference in my LS-7. The lightweight design improved my throttle response!"
  • "I was impressed by the quality of the machining. It fits perfectly and performs even better."
  • "After installing this crankshaft, my engine feels alive! Highly recommend for anyone looking to upgrade."

Upgrade your Chevrolet LS-7 with the Manley 4.000" Stroke Pro Series Lightweight Crankshaft and experience the difference in performance and power. Make your engine work for you!

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Manley Logo

How did Manley Performance Start?

Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.

Evolving in the Automotive Space

Led by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.

What is Manley’s Specialty?

Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.

Get Manley Performance at Vivid Racing

If you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.

If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.

Due to the intended usage of the products sold by Manley Performance Products, Inc., they are sold WITHOUT WARRANTY OR ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR THE INTENDED PURPOSE. Manley Performance Products, Inc. shall not, under any circumstances, be liable for any special, consequential or incidental damages, including but not limited to loss of profits or revenue, loss of other property or equipment, cost of purchased or replacement of goods, or claims by customers of the purchaser, which may arise and/or result from the sale, installation or use of these parts. Installation of parts intended for “off-highway” use could adversely affect the vehicle manufacturer’s warranty coverage. Subject to applicable state law. Some items may not be legal for use in California on pollution controlled vehicles. All weights specified are approximate and subject to manufacturing tolerances. Manley Performance Products, Inc. reserves the right to make changes in design, specifications, materials, or make product changes without incurring liability or obligation with respect to similar product previously manufactured. If technical advice is offered or given in connection with the use of any Products it will be as an accommodation to Buyer and without charge and Seller shall have no responsibilities or liabilities whatsoever for the content or use of such advice.
You're seeing this because you're logged into an employee account or you're accessing the site through an internal IP address. This information is not normally visible.
Things
Sale price None
Wholesale price $1,282.66
Shipping Weight: 50.00
Length: 31
Width: 10
Height: 9
Product Added At Thursday 04 August, 2022
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
View In Admin

Emissions Info
Carb Approved No
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
Some placeholder content for the collapse component. This panel is hidden by default but revealed when the user activates the relevant trigger.
Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $1,087.00 $1,294.05 ? $1,190.53 ? 2025-07-11 10:32:03


Check out these other great products