Triumph 650 cast piston kitWe have found this 9: 1 compression Triumph piston set to be more consistent than original Triumph AE pistons. Having supplied this piston set for years, and using them in our builds, these are an excellent choice for any street 650 engine, pre unit or unit construction. These pistons are manufactured by Jieh Chueng Industrial Comany., Ltd who are also the current manufacturers of many OEM pistons worldwide. This set is for 650cc with a 2. 795"

and removable pilot jet (for easy cleaning) that can be changed for tuning

The seals are supplied with the kit

Seal is Triumph part number 70-4568

57-1614 LAYSHAFT NEEDLE BEARING (open) x1

It also makes putting your cylinder on easier and almost effortless

4 Rocker box inspection washers (70-3751 or E3751)

including 3TA

Triumph 6mm valve installation instructions click here

Any residual gasket that is squeezed out can then be cleaned off with acetone

This kit is not for pre war or earlier style 1946-1949 transmissions

this is the Ultimate carb for your bike

and these Chrome Moly are 34