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Our “All The Boost” stroker kit contains the best of the best when it comes to the rotating assembly.

With a full 8CCW Callie’s Ultra Billet 4″ crank shaft, Callies Ultra Enforcer rods, and JE Ultra Flat-top pistons bring compression to 10.5:1 on a 4.005 bore and 70cc head chambers, this kit it capable of 2000hp +


Callies Ultra billets are machined from Premium Grade (Para-Pure) Timken alloy steel. This high quality specialty steel has been formulated to create a level of toughness that is unmatched in the crankshaft industry.

Callies has developed a wide range of part numbers for a variety of popular engines. Any main journal, rod journal, post configuration, stroke or other specialized characteristic that you may require can be provided.

Each Ultra billet crankshaft is uniquely machined with our Ultra-Shed counterweight profiles. The Ultra-Shed leading edge profile gently moves oil away from the oncoming counterweight while the directional trailing edge directs oil away from the oncoming rod journal. Our Aero-Shed super finish will give you a crankshaft that is totally stress-riser free and incredibly aero efficient. When the Ultra-Shed and Aero-Shed processes are combined, the result is a crankshaft with the lowest coefficient of drag in the industry.


Callies Ultra Enforcer connecting rods are produced from extremely clean TimkenSteel Product that is formulated to our exact specifications. This proprietary steel is forged in Trenton, Michigan, and manufactured 100% in our Fostoria, Ohio facility. Pride in workmanship, and attention to detail are qualities you’ll discover during careful examination of our finished product. Each step of the manufacturing history of every Ultra connecting rod is meticulously maintained by our manufacturing team. You can be confident of the material and workmanship of these quality components.

Designed with fortified tower flanges, Enforcer I-beam connecting rods are the ideal component for turbo charged and super charged engines.



JEs Ultra Series pistons combine all of the best, most desirable piston features, such as thermal barrier crown coating, lateral gas ports, thick-wall wrist pins, and a revolutionary new forging technology for the ultimate in strength. They are ready for massive power and boost right out of the box!

Please allow 2-3 weeks shipping as ex USA