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Cosworth smaller 9 bolt flywheel to suit Pinto 8 ½” clutch

Ford Pinto For 9 Bolt Cosworth Crank

Cosworth smaller 9 bolt flywheel to suit Pinto 8 ½” clutch


Smaller 9 bolt flywheel to suit Pinto 8 1/2″ clutch. This will fit inside our bellhousings and will accept any Ford 8 1/2″ clutch.


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By reducing the weight of the flywheel over the standard Cosworth YB item to as little as a half, the resulting reduced inertia gives better acceleration, especially in the lower gears. In addition, the reduced weight at the flywheel edges allows quicker gear changes, and increased engine braking. Comes with integral starter ring (ring gear is machined into the flywheel).

For use with any Ford Pinto 8 1/2″ clutch.

Suitable for use with our Pinto or Cosworth to Borg Warner T5 Bellhousing or Sierra Cable Clutch Bellhousing.

Download a Fitting Guidance Notes document.

Specification and Application

Component Lightweight Billet Steel Flywheel
Type Dynamically balanced to suit standard or uprated Ford 8 1/2″ 23 spline clutch and cover
Benefits Reduces the weight of the standard Cosworth cast iron flywheel
Weight 4.2Kg
Engines Ford Cosworth YB using the smaller 9 bolt flwyheel
Clutches Recommended 8 1/2″ Clutch Cover and Friction Disc for fast road up to 150bhp (using original Sigma SE clutch cover)
Heavy Duty Pinto Clutch Cover and Organic Clutch Plate for power greater than 150bhp or competition use.
Applications Kit Cars
Rally/Race – MkI/II Escort, Sierra, Lotus Cortina
Classic Ford
Fast Road


Additional information

Weight 4.5 kg
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