Outerwears Air Filter Pre-Filter Assembly w/ Top - 14" Element x 4" Element - Blue 91609179 There are no gear teeth

There are no gear teeth on the dog ring to engage with other gears

All Metal Construction

Length: 20

Magnafuel QuickStar 275/300 Fuel Pumps

1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling

Outerwears Air Filter Pre-Filter Assembly w/ Top - 14" Element x 4" Element - Blue 91609179 There are no gear teethOuterwears was created to fulfill a desperate need to keep the Air filter and engine clean during off road racing. Racers and engine builders were experiencing loss of horsepower and engine damage due to sand, dirt, and other debris prematurely packing (clogging) the filter and often passing through the filter into the engine. Filters loading up with dirt meant loss of horsepower and in many cases loss of a race. Race crews were noticing severe engine