Ronstan Headboard Plates - Suits Series 14, 19 & 22 Ball Bearing Systems As well As Series 6 & 8 Ballslide Systems general electrical except Johnson Special Dished Pulley

except Johnson Special Dished Pulley (UFO Shaped) Shaft size 17mm

Warm up clutch is not to be engaged while engine is running

PERMANENT MAGNET GEAR REDUCTION

Overall Size: 153 x 82mm

Thermo Control Unit to suit small block chev that is timing case driven ie: Dog Clutch

Ronstan Headboard Plates - Suits Series 14, 19 & 22 Ball Bearing Systems As well As Series 6 & 8 Ballslide Systems general electrical except Johnson Special Dished Pulley5. 4mm (3 16") and 16. 4mm (5 8") holes Convenient track mounting slugs are available for fitting standard profile track to the luff groove of existing masts. Patented system uses low profile cars running on twin races of acetal ball bearings. Cars use the existing luff groove of the mast (no track or installation work required). Ball bearings are captive for easy loading and unloading of cars from mast. They can be easily switched between fully