Phathead Racing Billet Gas Cap for IMS tank Color:Raw aluminum 4cc (95+ octane)

4cc  (95+ octane)

5mm big bore chamber 100+ octane - for use with big bore piston

Y31 - (95+ octane)

6cc 95+ octaneH03    7

Phathead Racing Billet Gas Cap for IMS tank Color:Raw aluminum 4cc (95+ octane)With a one way valve built in to the breather vent designed to block the outflow of fuel when the tank is upside down(crash scenario), these gas caps offer an extra layer of protection over the traditional plastic caps which only restrict fuel flow when turned upside down. Features: 6061 T6 billet aluminum body Stainless hardware and one way valve breather Viton gasket Made in USA with USA sourced materials Flex on the competition with our signature