Which Crankshaft is Right for You? With so many different materials used for performance crankshafts, how do you know which is right for your application? The following is meant as a basic guide to help in your decision. - OE Cast OK for stock or minor performance applications
- Cast Steel (import) Great for stock to budget performance or claimer applications.
- 1053 OE Forged HD stock (towing) to hi-performance street
- 5140/4130 (import) Street/strip to budget race applications
- 4340 (import) Economy performance and race applications (sportsman oval track)
- 4340 (American) High purity aircraft quality material, advanced heat treating, machining held to strict standards, great for all racing applications, a must for high horsepower.
MACHINE SHOP CRANKSHAFTS Competition Products, Inc. offers a wide selection of machined crankshafts including Callies Crankshafts, Eagle Crankshafts, Elgin Crankshafts, GM, Howards Racing Components, Scat Crankshafts and imported machine shop crankshafts. We offer crankshafts for all makes of engines including: Chevy Small Block, Chevy Big Block, Chrysler, Ford, GM, etc… The Howards Track Smart machined crankshafts are 100% made in America! Only the finest quality premium grade 4340 aerospace chromoly material American forgings are used. No inferior imports here! Howards Crankshafts offers the best is machined crankshafts. After close inspection they are machined on the most advanced CNC machines in the industry. They are then Nitrided, and all surface journals are micro polished to five microns or better. Number 1 and 4 rod throws have lightening holes. (Requires chamfered bearings) Pro Series 4340 Crankshafts are 100% American Made! When Howard Racing Components designed these machined crankshafts, they set out to build the best possible crankshaft! To start, they use the finest high purity 4340 aircraft quality alloy. More…..  Scat Crankshafts offer several lines of machine shop crankshafts designed to replace stock cranks that have seen better days. The 9000 Series Cast Steel Imported Crankshafts are great for street performance applications. And the 9000 Series Cast Steel Stroker Lightweight Imported Crankshafts are perfect to increase cubic inches on mild to moderate street or racing engines. More …
The Callies Magnum Plus Crankshafts -- the next standard in high performance machined crankshafts. Callies Crankshafts feature shaped and profiled counterweights for enhanced windage reduction. Of course as all Callies crankshafts they use purity 4340 alloy forging, close tolerance machining, and Perma-Tough heat-treat. More… The Callies Dragon Slayer Crankshafts are made in the U.S.A. for American racers. These machine shop crankshafts are designed with the tolerances demanded by today’s high performance engine builders. Roundness and taper will be held to within .0003” on all rod and main diameters. The Callies machine shop crankshafts are manufactured from high purity 4340 premium grade steel. Callies heat treating (Perma-Tough) and finishing procedures produce excellent load carrying surfaces that ensure extended bearing life and trouble free operation. (Requires chamfered bearings) Dart Racing Cylinder Heads The results of three decades of cylinder head development, Dart Iron Eagle racing cylinder heads incorporate features that were previously available only in expensive aluminum racing cylinder heads. We designed Iron Eagle heads for street performance, bracket racing, oval track competition, and high-performance marine use. We offer five different intake ports - 165cc, 180cc, 200cc, 215cc, and 230cc that cover virtually every engine application. Dart Iron Eagle racing cylinder heads have standard features you don’t get in other factory and aftermarket cast-iron cylinder heads. Long-wearing bronze valve guides (except S/S), multi-angle intake valve seats, and hardened and radiused exhaust seats are standard. PRO 1 aluminum Dart racing cylinder heads for best small block Chevy V8’s deliver advanced airflow technology at an unbeatable price! There’s a PRO 1 Dart cylinder head for virtually every small block Chevy engine. We offer a choice of four intake runner sizes (180cc, 200cc, 215cc, and 230cc), two chamber volumes (64cc and 72cc), five valve diameters, and straight or angled spark plugs. We’ve improved the original best small block Chevy heads, design with extra-thick decks and high-capacity water jackets that increase reliability in high-performance applications. Hardened exhaust seats and long-lasting mag-bronze valve guides significantly extend racing cylinder head life. PRO 1 heads are engineered for easy installation. They use standard small block Chevy pistons, headers, and valve train components, and are bolt-on replacements for most conventional 23° heads. The Dart 15°, 16° and 18° aluminum small block Chevy heads offer a dramatic performance improvement over conventional 23° designs. By reducing the valve angle, reshaping the intake ports, and optimizing the combustion chambers, we produced a significant increase in both airflow and combustion efficiency - and that means more power! Dart 15°, 16° & 18° heads use the same readily available components as other 18° designs. The difference is that Dart racing cylinder heads deliver the features that put you ahead of the competition. We’ve refined the 18° design to give our customers more versatility, more performance, more reliability, and higher quality. The 11° Little Chief are the best small block Chevy heads. Designed with Pro-Stock style oval ports and big-block style canted valves with “semi-hemi” style combustion chambers, the Little Chief is a radical departure from traditional small block Chevy heads. The huge flow resulting from the 11° valve angle and splayed valve layout combined with spread oval intake ports, raised runners and highly efficient combustion chambers deliver amazing power! If you want the ultimate bad-nasty small block race motor, you want the Little Chief. We have everything you need to build a complete Little Chief engine, including intake manifolds, valve covers, gaskets and valve train components. Howards Crankshafts, Elgin Crankshafts, Scat Crankshafts, GM Crankshafts, Eagle Crankshafts, Callies Crankshafts, 4340 alloy forged, 4340 premium grade steel, 9000 Series Cast Steel, Imported Cast Steel, Chevy Small Block, Chevy Big Block, Ford Small Block, Ford Big Block, Ford 302, Ford 351, Ford 460, Chrysler, GM | 
