Triumph Unit 500 cast piston kit 1967-1974This piston set is suitable for all 500 Unit Triumph engines, using the "non squish band" head. Available in . 020", . 040", and . 060" oversizes (nominal bore 2. 7165"). Includes wrist pins and circlips, We have found this piston set to be more consistent in size and weight than A E Hepolite pistons of the past. For more information on installation see our tech pages. Order with Grant or Hastings cast piston rings or without rings. For 500 piston

150" (end to end) for intake

This base gasket replaces Triumph part # 70-3798 or E3798

Using P-80 on seals during installation will help the seals go in squarely with minimum effort

1 1/4” I

Select aluminum or brass

Replace your weak valve springs with this high quality English made set and get your power back

with materials from the USA by Cleveland Gasket® They are aluminum core with a nitrile rubber bonded to both sides

These springs can also be used on all 650 heads provided the taller OEM basewashers are used ( Triumph p/n 70-6439)

(That's only 453 grams

Weighing only 17

and we recommend the use of Hylomar spray to assist with sealing

With all 650 and engines