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Scat Stroker 331 ci Forged Competition Rotating Assembly (79-95 5.0L)

Market Price $2,119.99 You Save 12% ($245.00)
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$1,874.99 (kit)

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  • Item 100533
  • MPN# 1-45160

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    Features & Details

    • Scat 4340 Forged Competition Rotating Assembly
    • Punch Out Your 302ci to a 331ci for More Power
    • Includes Forged Crankshaft, H-Beam Connecting Rods, and Premium Flat Top Pistons
    • 4.030" Bore
    • 3.250" Crank Stroke
    • 5.400" Rod Length
    • Compression Ratio 10.4:1 W/58cc; 9.7:1 W/64cc; 8.9:1 W/70cc
    • Unbalanced Kit - Use 28oz Balancer & 28oz Flywheel/Flexplate
    • Fits 1979 to 1995 5.0L Mustangs
    Stroker Kit. There is no replacement for displacement, so punch out your 302 V8 to a more respectable 331 for more asphalt-chewing horsepower with a Scat Stroker 4340 Forged Competition Rotating Assembly.

    Kit Includes. Maximize the displacement of your engine with a cubic inch-enhancing stroker kit that includes a 4340 forged crankshaft, 4340 forged H-beam connecting rods with ARP 8740 7/16" cap screw bolts, premium forged flat top pistons as well as rings and main & rod bearings.

    Compression Ratio. The Scat Stroker Kit will allow for different compression ratios depending on the heads installed. Examples: 10.4:1 with 58cc heads; 9.7:1 with 64cc heads; 8.9:1 with 70cc heads.

    Unbalanced Kit. This Rotating Assembly comes unbalanced and will need to be professionally balanced before installation. It requires the use of a 28 oz harmonic balancer as well as a matching 28 oz flywheel or flexplate.

    Application. This Scat Stroker 4340 Forged Competition 331ci Rotating Assembly Kit is designed to fit 1979 to 1995 Mustangs equipped with the iconic pushrod 5.0L engine including the 5.0 LX, GT and SVT Cobra models.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

    What's in the Box
    • (1) Crankshaft
    • (8) Connecting Rods
    • (8) Pistons
    • Rings
    • Bearings
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    5 Questions / 6 Answers

    Ask a Question

    What heads would work with this kit?

    Trey

    • The Scat Stroker 331 ci Forged Competition Rotating Assembly will work with any small block ford head. With 331 CI displacement, we recommend something with a 185+ cc intake runner, and 2.02" intake valves to achieve optimum power.

      Rob D

    Helpful (0)

    Will I need rockers and valve covers?

    MichaelF

    • It is not necessary to replace the rockers and valve covers when installing the Scat Stroker 331 ci Forged Competition Rotating Assembly unless you plan to change out the heads as well.

      AshleyK

    Helpful (0)

    Is 28oz. Flywheel and balancer still required after having assembly balanced by machine shop? If so, why?

    CodyG

    • You will still need to use the flywheel and balancer as well as getting it balanced by a machine shop as the crank has not been balanced for the rods and pistons that comes in this stroker kit.

      KevinD92

    Helpful (0)

    Can I fairly easily replace stock 95 stang internals with these, or is this something that has to be professionally assembled.

    Anonymous

    • We recommend professional installation for this Scat Stroker 331 ci Forged Competition Rotating Assembly so the clearances within the engine can be properly checked and other potential problems can be addressed when doing the rebuild.

      pserafi

    Helpful (0)

    hp rating?? what is the horse power rating on this stroker kit??

    95tealboy

    • they can withstand over 600hp easily.

      EddieMack

    Show 1 more answer Helpful (0)

    Customer Reviews (1) Write a Review

    Overall Rating 5

    out of 5 stars

    • Performance Gain 5 5
    • Fit 5 5



    • 5/5

      March 29, 2016

      Great

      If you are mechanically capable then this is a great way to get some much needed power.

      IRECyou

      Year: 1995 Submodel: GT

      Helpful (2)

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