No other engine component is subject to as much stress as the crankshaft. It’s impacted by the explosive force of combustion thousands of times every minute, yet typically will provide many thousands of miles of trouble free service in an unmodified engine. But, hop up the engine for increased horsepower and high RPM use, and that once reliable stock crankshaft can become the pin and your precious engine a very expensive hand grenade.

Featured Products

  • SCAT® Crankshaft
    (1 reviews)
    # sp12204
    Crankshaft by Scat®. Manufactured using only premium materials and advanced technologies, this product will provide you with the quality and power you need. It is subjected to extensive testing to guarantee outstanding performance.
    $213.32 - $1,850.38
  • Melling® Crankshaft Gear
    (0 reviews)
    # sp11930
    Crankshaft Gear by Melling®. Timing gears and sprockets from Melling are provided as a part of a complete timing kit program including chain and sprocket kits, as well as for the individual gear and sprocket sales.
    $15.01 - $68.40
  • SCAT® Rotating Assembly
    (2 reviews)
    # sp12224
    Rotating Assembly by SCAT®. SCAT offers over 1,200 rotating assembly combinations for Chevy, Chevy LS, Ford, Ford Modular, Ford Vintage, Chrysler, Modern Hemi, Pontiac, and Sport Compact applications. Scat take the guess work out...
    $656.12 - $3,686.88
  • Agency Power® Crankshaft Pulley
    (0 reviews)
    # sp3803
    Crankshaft Pulley by Agency Power®. Lightweight crank pulleys have proven horsepower and torque increases time after time. Agency Power chooses to make all of the crank pulleys the same diameter as the factory but reduce the...
    $130.00 - $600.00
  • Melling® Crankshaft Timing Sprocket
    (0 reviews)
    # sp11936
    Crankshaft Timing Sprocket by Melling®. Timing gears and sprockets from Melling are provided as a part of a complete timing kit program including chain and sprocket kits, as well as for the individual gear and sprocket sales. Two...
  • Mr. Gasket® Crankshaft Pulley
    (1 reviews)
    # sp2800
    Crankshaft Pulley by Mr. Gasket®. Swapping in a camshaft is a sure-fire way to add power and torque to your car’s engine. Mr. Gasket can supply you with just about everything except the camshaft itself.
    $37.71 - $75.45
  • BTP® Crank Pulley
    (0 reviews)
    # sp9903
    Crank Pulley by BTP®. Get more out of your engine with this premium part! It ensures long-lasting durability and provides significant increases for your engine performance. Thanks to great design and precision engineering, this...
    $17.50 - $68.31
  • BBK® Power-Plus Series™ Crankshaft Pulley
    (1 reviews)
    # sp9052
    Gain 8-15 horsepower in just 30 minutes by bolting on this Underdrive Pulley Kit. It directly replaces your factory pulley, won’t affect your charging or cooling system, and your existing serpentine belt can still be used. Made of...
  • Spectre Performance® Crankshaft Pulley
    (0 reviews)
    # sp2741
    Crankshaft Pulley by Spectre Performance®. Dump that worn, rusty steel water pump pulley for new pulley. Your belts will last longer. Besides, a glazed-over pulley can cause belt squeal and slipping.
    $25.92 - $165.24

Featured Brands

Many OE cranks are made of cast iron, which is reliable at factory power levels, but isn’t up to the demands of a performance engine. Also, the constant pounding can cause hard-to-find hairline cracks to develop, and may even cause the crank to bend. If the journals are worn, regrinding may remove the surface case hardening. Don’t run a used OE crank and risk blowing up your engine. Be safe, and make a new performance crankshaft the cornerstone of your build.

We offer performance crankshafts for all popular engines, designed and manufactured by performance crankshaft specialists, in materials and configurations for every use and horsepower output. Cast steel cranks are relatively inexpensive yet can handle some serious power. Next up the ladder in strength and price are forged followed by billet steel cranks. Forged cranks are created by pressure forming heated steel in a die, while billet cranks are CNC machined from solid steel. Regardless of the material, all performance cranks are finish machined to a greater degree of precision than standard replacement cranks.

Although the specifics will vary according to application and price, features that you’ll commonly find on performance crankshafts include micro-polished journals to eliminate friction, chamfered oil holes to remove sharp edges and improve lubrication, larger fillet radiuses to prevent cracks, and surface hardening by heat treating or nitriding to increase strength. Some performance and racing cranks have the counterweights radiused and knife edged to reduce windage and drag, and they’re often lightened to enable faster revving by cutting down the counterweights and drilling the center of the main and rod journals.

If you’re starting from scratch with a new crank, on some engines you can do more than ensure the bottom end stays together – you can add substantial horsepower too by increasing displacement. Engine size is determined by bore and stroke, and while there is usually only enough meat in the average block to increase the bore by 0.060”, the stroke on some engines can be fattened by as much as 0.400”! We offer “stroker” cranks to increase the stroke and displacement of many popular engines, as well as fully balanced rotating assemblies that include the crank, bearings, connecting rods, pistons and rings.

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Guides & Articles

  • Replacement Engine Parts
    Glossary of Engine Internal Parts
    Internal combustion engines are extremely complex and feature a wide array of components that rotate, move up and down, pump, seal, or remain stationary. When repairing or rebuilding your engine, you will come across many different terms when referencing repair manuals and ordering parts. We know it can be confusing, especially when the repair is complex. Even if you are paying a professional to do the work, it’s good to be conversant with the topic. In order to help you understand the terminology of engine components, we’ve created the following glossary, listed in alphabetical order.

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Performance Crankshafts & Components Reviews

Average rating:  4.5  4.7 - 6 reviews
Read All Crankshafts Reviews
4.8 of 5
Forged Crankshaft
The crank is good but the journals where undersized. I Had some problems installing Bearings, but it fitted perfect after all. I recommend to measure rod journals before ordering bearings.
JPosted by Joseph (Henderson, NV) /
2012 Ford F-150
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