Last update: 08/28/1999

I believe that TR-4 engines for 63, 64 were fitted with Zenith -Stromberg carbs. My 1964 model certainly was. TR-4As were all fitted with HS-6 carbs. The factory received engines form Standard Triumph complete with carburators and manifolds and installed them as received. The Zenith carbs were used for a short time after they became available because Su was owned by British Motors Corp.,(manufacturer of the MG) and Triumph did not want to buy carburators from their competition if it could be avoided. After Triumph and BMC merged to become "British Leyland" Triumph went back to using SUs.

Greg Solow