Flywheel Shim Kit .090 Thick - SBF 289-351W

The Flywheel Shim Kit .090 Thick – SBF 289-351W from Competition Engineering is a precision engine tuning component designed for small-block Ford enthusiasts and professional mechanics undertaking serious performance builds or restoration work. This shim set addresses a critical but often overlooked aspect of engine assembly: flywheel-to-crankshaft face alignment and spacing.

Whether you're building a stroker engine, correcting manufacturing tolerances, or fine-tuning a high-revving race motor, proper flywheel shimming ensures consistent clutch engagement, reduces drivetrain vibration, and protects expensive transmission components from premature wear. Competition Engineering manufactures these shims from hardened steel, ensuring they maintain dimensional integrity under extreme clamping loads and engine vibration.

These shims work with 289 and 351W small-block Ford engines, allowing you to correct factory tolerance stack-up, accommodate aftermarket crankshafts with different register diameters, or adjust for custom bell housing installations. The compact kit contains everything needed for a complete flywheel installation without requiring machine work, making it ideal for serious engine builders and vintage muscle car restorers.