Bert Steel Flywheel - Bert Transmission - External Balance - 1-Piece Seal - GM LS-Series 11-302-4 The OF25 features a fire-retardant

The OF25 features a fire-retardant Nomex® interior

89 in Length

(Housing-to-Filter Interface US PAT 9440175)

Sanding discs are specific to each backing pad and sold in packs of 5

Bert Steel Flywheel - Bert Transmission - External Balance - 1-Piece Seal - GM LS-Series 11-302-4 The OF25 features a fire-retardantProduct Description: Flywheel 1 Piece Steel Bert Transmission External Balance 1 Piece Seal GM LS Series Sold Individually Over the past twenty years thousands of races were won with Bert Transmissions. Bert Transmission engineering makes Bert Transmission your best choice for performance and reliability. 20 Years ago, Bert Engineering introduced the revolutionary Bert transmission, a direct drive unit with a small internal clutch and it is now the