Crankshaft Services
The Foundation of Every Build
Crank Precision,
Start to Finish
The crankshaft is the heartbeat of your engine. Every pound of torque passes through it, every rpm it sees is a new opportunity for vibration, wear, or failure — if it isn't prepared correctly. At Steve Morris Engines, crankshaft prep is a non-negotiable step in every high-performance build.
We offer three focused crank services — balancing, keyway cutting, and journal polishing — each designed to bring your crankshaft to the exact standard a serious performance engine demands. Whether it's a fresh billet crank going into a new build or a steel unit coming back for a refresh, we have the tooling and experience to do it right.
Crank Balance
A properly balanced rotating assembly eliminates destructive vibration harmonics that rob power, stress bearings, and shorten engine life. We balance the full rotating assembly — crankshaft, connecting rods, pistons, pins, and rings — to tight tolerances suited for high-rpm performance use.
- Full rotating assembly balance: crank, rods, pistons, pins & rings
- Eliminates vibration harmonics that cause bearing and seal wear
- Critical for high-rpm turbo and supercharged applications
Crank Key Way
A precision-cut keyway ensures your harmonic balancer, timing gear, or crank trigger wheel indexes correctly on the snout — every time. Whether you're cutting a fresh slot or repairing a damaged one, proper keyway geometry is critical for ignition timing accuracy and front-end retention.
- Precision keyway cutting for timing gear and balancer indexing
- Repair of worn or damaged existing keyways
- Accurate ignition timing and front-end retention depend on it
Crank Polish
Journal surface finish directly affects bearing oil film thickness and wear characteristics. A micro-polished journal creates the ideal surface for hydrodynamic lubrication — smoother start-ups, better oil retention, and extended bearing life in high-load applications.
- Mirror polish on main and rod journals for optimal oil film development
- Extends bearing life by minimizing surface asperity contact
- Recommended after any crank grinding or regrind operation
Watch the Process
See the Work
Up Close
Watch our crankshaft prep process in action — the precision, the tooling, and the attention to detail that goes into every rotating assembly we build.
Get Started
Interested?
Message us or give us a call — we'll talk through your build, confirm what your engine needs, and get you scheduled.
231-747-7520