4 Blade 19 inch Racing Fan, Non-Flex, Steel, Black Triumph Calflow socket head bolt kits

Calflow socket head bolt kits are easy to install

Suits most standard 11-3/8” oval air cleaners

Suits 265 283 305 307 327 350 383 400 396 402 427 454 472 502 348 409 Small and Big Block Chevy motors

High-Tech touch screen control boxes

Hole diameter: 53mm

4 Blade 19 inch Racing Fan, Non-Flex, Steel, Black Triumph Calflow socket head bolt kitsThese four blade fans have proven to be the fan of choice due to weight, drag and cooling efficiency 4 blade steel non flex fan blade design offers a great balance of airflow versus drag to minimize power loss The solid steel fan blades will not flatten out like a flex fan at high speed Slotted bolt pattern to fit nearly all V8 standard rotation water pumps Black powder coated finish provides a long lasting durable finish