| Also known as | B54A, E2903 |
| Diagram | Fig. 4 — CYLINDER BLOCK AND HEAD, 6T · ref 12 |
| Subsystem | engine top |
| Listed in parts books | 1960–1962 |
INLET VALVE,6T TRIUMPH
Inlet valve for the Triumph 6T 650 twin, listed under the older B54A number.
This is the inlet valve for the Triumph 6T, listed in the older parts books under the B54A number before it was renumbered to 70-2903. The 6T was Triumph's 650 twin, and this valve is one of the two poppet valves per cylinder that lets the fuel/air mixture into the combustion chamber on the intake stroke.
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We don't have a lot of extra detail on file for this one beyond the catalog listing itself. If you're rebuilding a 6T head, it's worth checking your valve seats and guides at the same time you're sourcing new valves, since wear in one usually shows up in the other.
Give us a call if you want to confirm this is the right valve for your particular engine before you order — we can talk through what else the catalog shows for your head.
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