
Manley 4.000" Stroke Pro Series Lightweight Crankshaft
Upgrade your Chevrolet LT1 engine with the Manley 4.000" Stroke Pro Series Lightweight Crankshaft. Crafted from high-quality 4340 steel forging, this crankshaft is designed to enhance your engine's performance by increasing your 6.2L engine's displacement to an impressive 6.8-7.0L, depending on your bore size. Each crankshaft arrives with a 58-tooth reluctor wheel already installed, making it a seamless addition to your build.
Key Features
- Premium Material: Made from durable 4340 steel forgings for enhanced longevity.
- Heat Treatment: Undergoes a multi-step heat treatment process and nitriding for added strength and durability.
- Stress Relief: Each crankshaft is stress relieved, shot-peened, and 100% magnafluxed to ensure quality and reliability.
- Precision Engineering: Features micro-polished large radius journals (note that narrowed rod bearings are required).
- Weight Reduction: Gun drilled mains and lightened rod journals help reduce overall weight without compromising performance.
- Optimized Counterweights: Fully profiled counterweights for balanced performance.
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: 1850 grams
- Total Weight: 51-53 lbs
Perfect Fit for Your LT1
This crankshaft is specifically designed for the Chevrolet LT1 with a long snout, making it an ideal choice for those utilizing dry sump oiling systems. The lightweight design contributes to improved engine responsiveness, allowing you to get the most out of your performance upgrades.
Customer Feedback
Customers have praised the Manley 4.000" Stroke Pro Series Lightweight Crankshaft for its robust construction and performance enhancements. Many have noted noticeable improvements in engine power and efficiency after installation. Users appreciate the ease of installation due to the pre-installed reluctor wheel, making it a favorite among both professional builders and DIY enthusiasts.
Join the ranks of satisfied customers who have transformed their LT1 engines with this high-performance crankshaft. Experience the difference that quality engineering can make!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
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 SpaceLed 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 RacingIf 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.
Sale price | None |
Wholesale price | $1,282.66 |
Shipping |
Weight: 59.00 Length: 33 Width: 10 Height: 10 |
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 |
Carb Approved | No |
---|---|
Carb Number | - |
Epa Status | N/A |
Prop65 | Yes |
Carb Required | - |
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 |
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