I know it can be done, but how? I've really looked into a LPG conversion on my truck and have basically decided to do it EXCEPT for the whole refueling issue. It's my only reserve right now.
It would be really nice to be able to have a 100lb propane tank with a 20 gallon gas reserve so when the propane ran out I'd be able to switch and run on gas indefinitely if I was someplace without a LPG supply.
I can and will get some info on kits etc. I'm looking into propane on a 351 M. KNow a guy who did it with a 390 and I will eventually go that route. They have kits that put big tanks in bed wheel wells and along frame. I want to be able to fill at home with a standard residential tank and will be dual fuel. I have a '77 f150 with flatbed.
I already found that site, but a kit isn't what i'm looking for, more for theory and application (and i wouldn't feel right asking the guy this stuff, and then not buying anything off of him). I already have access to propane parts, it's a matter of implementing it while still maintaining my current carburetor.
A guy I know ran a Cobra Jet on propane, had a Impco 452 mixer, 13.5:1 CR and a good high torque cam, the shop estimated it at around 425 hp on propane. He had all this crammed into his hunting truck ('74 F-250 4x4 on 35's) All he told me for my engine was do 12:1 cr, and have a HUGE rad and fan, and let it breathe. So the way it seems if you go propane, build for it, don't bother with gas. Also know of a 454 chev that is running dual 425 mixers and a blower and getting 16mpg with 4:10 gears.
So how much is the propane compared to gas at the pump? Here gas is 92.9 cents per Litre, while Propane was 63.9 now down to 40.9 at the pump. Remarkably the truck I just bought has had about 300 Km put on it and the guage hasn't moved from 1/2 tank on a 200L tank.
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