- Engines & Components
- Rotating Assembly Kits
- Scat Chrysler 360 4340 Forged Standard Weight Stroker Competition Rotating Assembly
Scat rotating assembly component parts are designed for the ultimate in performance. They take the ''guess work'' out of engine assemblies, just wash, Q.C. and assemble.
Complete Assembly Includes:
- 4340 Forged Standard Weight Stroker Crankshaft
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- Pro Comp 4340 Forged I-Beam Connecting Rods with 7/16'' Cap Bolts
- Forged Pistons with Piston Rings
- Main and Connecting Rod Bearings
- Internal Balanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
- Unbalanced Rotating Assemblies DO NOT Include Flexplate and Harmonic Damper
- Crank/Rod/Piston Kits DO NOT Include Piston Rings, Main and Connecting Rod Bearings, Flexplate or Harmonic Damper
If you’re building a high-output small-block Mopar, the Scat rotating assembly you see here takes the guesswork out of piecing together internal components. This competition-grade Scat Chrysler 360 4340 Forged Standard Weight Stroker Rotating Assembly ships as a precision-matched kit that includes forged crank, connecting rods, pistons, rings, and bearings—everything needed to create a robust, high-displacement engine short of cam, heads, or induction.
What truly sets this unit apart is its use of a forged 4340 steel crank—machined to standard weight tolerance and nitride hardened for excellent wear resistance—providing the strength needed for aggressive stroke and power builds. The I-beam connecting rods use 7/16" cap bolts and are forged from premium steel, giving you confidence under harsh conditions. Pistons and rings are assembled with proper clearances and matched to the rotating components to reduce break-in variables.
This kit supports multiple bore and stroke options—typically built around the 360 main journal spacing with stroke options like 3.580" or 4.000"—so you can configure displacement for 365 or 408 cubic-inch builds. Because it’s supplied as a complete rotating package, you avoid the pitfalls of mixing unmatched components and reduce assembly stress.
Whether you're building a tough street/strip motor or a race-only animal, this mopar 360 stroker kit option gives you a balanced, high-quality foundation. Its design handles high RPM loads, helps maintain internal durability, and ensures consistent performance. Step up to a fully integrated kit, install it properly, and let your build benefit from a cohesive, race-minded foundation.
360 Main Journals365 Cubic Inch 3.580'' Crank Stroke 6.123'' Rod Length
360 Main Journals408 Cubic Inch 4.000'' Crank Stroke 6.123'' Rod Length
Which Scat Chrysler 360 4340 Forged Standard Weight Stroker Competition Rotating Assembly Is Best?
The 5.9L Magnum Stroker kit from Scat is one of the most popular options and for good reason. It includes everything you need to increase your engine displacement and put down noticeably more power. A Scat Chrysler 360 4340 Forged Competition Rotating Assembly 408ci provides the best value for money. It includes all of the necessary parts to increase your engine displacement without breaking the bank.
How Much Do Scat Chrysler 360 4340 Forged Standard Weight Stroker Competition Rotating Assembly Cost?
Prices range from $2,000 to $2,300. It is a small price to pay for the increase in power and performance you will experience.
Trust JEGS to bring you the best selection of Scat rotating assemblies at the guaranteed lowest prices. Shop now and get your engine build underway.
With a Scat Chrysler 360 stroker kit, you'll get the power you need to mow down the competition. The kit includes everything needed to take the guesswork out of engine rebuild kits. With a new crankshaft, connecting rods, piston rings, connecting rod bearings, and more, you'll have the upper hand over the rest.
No matter if you have a 365 or 408 ci engine, JEGS has a Scat rotating assembly to fit your application.
What Are Common Pros and Cons?
There are many different types of aftermarket stroker kits available on the market, so it can be difficult to choose the right one for your needs. But thanks to JEGS and Scat, you know you are getting the best of the best.
Benefits of the Mopar 408 stroke kit from Scat include forged flat top pistons, a balanced crankshaft, longer crank stroke, increased compression, and superior piston rings to name a few. Of course, with more power comes more responsibility. You will need to take better care of your engine including using higher quality motor oil and changing your oil more often. But if you are willing to put in the extra work, you will be rewarded with an incredibly powerful engine that will dominate the competition.