TRIUMPH unit 650 9 bolt to 750 big bore kit pistons rings barrels 9:1

This product is New - TRIUMPH unit 650 9 bolt to 750 big bore kit pistons rings barrels 9:1

215 Sonny Routt Design Made in Birmingham England Aerco

You will get the one brand new Aerco big bore kit that is pictured for 1966 to 1972. You get the barrels that have the oil ports for the exhaust lifters, the 5/16" center bolt hole , Aerco pistons Federal Mogul beveled piston rings.

215 Sonny Routt Design Made in Birmingham England Aerco

This is the correct kit for your unit 650 to convert to a 750 displacement, using the 9 bolt head.