New collets and retainers to fit all our valves.

This collet and retainer set replaces the original Austin 7 set. They allow accurate valve spring heights to be achived

We found that when building engines with the standard retainer the position on the valve stem was inconsistent.

The retainers also move down the collets with hi RPM use, this leads to incorect spring heights, valve bounce and valve seat damage.


Race valve spring retainer and collet set