0
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Hi, ! (Not you?)
My Account
Track Order
Help
Contact Us
Scat 945425
Representative Image
Product images may differ from actual product appearance.

Scat 9000 Pro Comp Lightweight Crankshaft Big Block Chevy (2-Piece Rear Seal)

942-945425

Free Shipping Ships

$354.99
Scat 9000 Pro Comp Lightweight Crankshaft Big Block Chevy (2-Piece Rear Seal) $354.99
QTY
9000 Pro Comp Lightweight Crankshaft
  • Big Block Chevy (2-Piece Rear Seal)
  • 4.250" Stroke for use with 6.385" Rod
  • Internal Balance, May Require Mallory
  • Scat 945425 Details

    Big Block Chevy

  • If the internal counterweights are too light, weight must be added to the crankshaft counterweights by filling them with Mallory or other similar tungsten alloy slugs.

  • Specifications:

    Quantity
    Sold individually
    Crankshaft Material
    Cast steel
    Engine Stroke (in.)
    4.25
    Main Bearings Included
    No
    Rear Main Seal Style
    2-piece
    Rod Bearings Included
    No
    Lightened
    Yes
    Requires Narrow Bearings
    No
    Crankshaft Snout Style
    Standard
    Rod Journal Diameter (in.)
    2.2
    Engine Balance
    Internal
    Manufacturer's Part Number:
    945425

    Less Rotating Weight for More Horsepower!
    These crankshafts use the same space-age material as Scat's 9000 Series Stock Replacements yet are modified to be lighter. Pro Comp Lightweight Crankshafts utilize lightening holes and aero-wing counterweights to reduce weight and windage. They're an ideal, affordable option for increasing the cubic inches and horsepower of mild to moderate street or race engines.

    Features
  • 9000 cast steel construction
  • Straight shot oil holes
  • Stress-relieved and shot-peened
  • Precision ground, micropolished journals
  • Lightening holes in all rod throws to reduce mass
  • Aero-wing counterweights increase horsepower by decreasing windage



    Scat has been manufacturing and distributing crankshafts, connecting rods, and engine components for more than fifty years. The tradition continues to this day with a 42,000 sq/ft facility in Redondo Beach, California. Quality is the first step in all Scat products... skilled craftsmen, superior materials, innovation, and dedication create the absolute best parts for you.

  • Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.