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Enduro Engine 4 stroke (including EFI & Exhaust) 4 stroke engine, EFI, and exhaust discussion

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Old 12-17-2019, 01:18 PM
Laszlo ervin Laszlo ervin is offline
Join Date: Dec 2019
Posts: 20
Exclamation Gas gas 400 to 450 conversion

If someone want.s to upgrade from 400cc to can buy an used or new cylinder and piston for a 450 it s working fine with the 400 crancase and the cylinder head.."plug and play"

Last edited by Laszlo ervin; 12-18-2019 at 03:07 PM.
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Old 12-18-2019, 07:50 AM
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gasgasman gasgasman is offline
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Join Date: Jul 2006
Location: Pearland Texas
Posts: 4,322

When the FSE 400 first came to the U.S. I remember there was a kit to make them 450s.
If I remember correctly, it was just the cylinder, piston kit, and gaskets.
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Old 12-18-2019, 04:15 PM
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Gasser Nate Gasser Nate is offline
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Join Date: May 2010
Posts: 344

The Ecu also requires a remap to do it properly.
Back on a gassy! 2018 EC300! 🤘
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