| Listed in parts books | Not catalogued by year yet |
EXHAUST CAM,T140 HI-PERF - Replacese 71-3355
High-performance exhaust camshaft for the T140 unit twin, replacing the earlier 71-3355 cam.
This is an exhaust camshaft for the T140 unit-construction Triumph twin, listed in our records as a high-performance grind. It replaces the earlier 71-3355 cam in the same location in the engine, so if your parts book calls out that older number, this is the current equivalent.
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The cam sits in the timing chest and controls the opening and closing of the exhaust valves, and a high-performance grind like this one is meant to change the lift and duration profile versus a stock cam. Because a cam swap affects valve timing, followers, and often springs, this isn't a bolt-in-and-forget part — plan on checking the rest of the valve train before you commit to a change like this.
We don't have a lot of extra catalog detail beyond the description on this one, so give us a call if you want to talk through what else needs attention when you go to a hotter exhaust cam.
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