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Old Jan 10, 2013, 08:58 AM
DarZeelon is offline
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Israel, Center District, פ"ת
Joined Nov 2003
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The Enya .40-4C is an early '80s engine with exposed rockers.

Originally it was never intended to use a muffler and did not include one.
Its noise is not particularly offensive and it made rather little power.

The .46-4C is stronger and the angled valves .53-4C was a Thoroughbred capable of exceeding 14K!

If you want you can improvise something to quiet it down further still.
I think the muffler for the .53-4C might be suitable, if the exhaust pipe is the same diameter.
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