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Propane powered GMC 427 TD conversion

Yesterday's Tractor Forums
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amscontr

New User
Looking to replace a the propane system with gas looking for fuel tank, intake, carb. etc. wondering if anyone has actually done the switch, thanks!
 
What year engine? if the engine is from the factory propane, you may need to use premium fuel due to higher compression.
 
Tom in Mo. said:
What year engine? if the engine is from the factory propane, you may need to use premium fuel due to higher compression.
Click to expand...
1992 427 it has Sodium filled exhaust valves from the factory.
 

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