| Listed in parts books | Not catalogued by year yet |
PISTON SET +.060 (64.5mm) 5T 1939-57 - 7-1 COMPRESSION - Use CP161 for 9:1
A +.060 (64.5mm) piston set for the pre-unit Triumph 5T, built for 7:1 compression.
This is a piston set for the pre-unit Triumph 5T, sized at .060 over standard, which works out to 64.5mm. The catalog places it against 5T production from 1939 through 1957. This set is built for the 7:1 compression ratio - if you're after 9:1, the shop stocks CP161 instead, so make sure you know which compression your engine is running before you order.
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The Hepolite/Wellworthy-style CP part numbering on this one tells you it's a piston line item, not an electrical or carb part despite whatever manufacturer tag shows up in the system - this is piston hardware for a Triumph twin, plain and simple.
Overoe sizes like this .060 set are for a cylinder that's already been bored out that far, so don't order this one unless your barrels have been machined to match. Give us a call if you're not sure which set your bore calls for.
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