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brent
 Post subject: Propane Slant Six Info
PostPosted: Fri Oct 19, 2001 8:19 pm 
Does anybody know if there is any difference between a factory propane slant 6 and the normal gas slant 6?

(out of a van)



lauchlin@shaw.ca
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Fopar
PostPosted: Fri Oct 19, 2001 10:04 pm 
Quote:
: Does anybody know if there is any difference
: between a factory propane slant 6 and the
: normal gas slant 6?
:
: (out of a van)


Check with one of your local forklift repair shops. The 225 was used in quite a few forklifts and were running on propane, we even had one at the place where I work. Don't think there is any differences except the addition of the Carb and the neccesary regulators.


dbjerklund@hotmail.com
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Doctor Dodge (Doug Dutra)
PostPosted: Sat Oct 20, 2001 2:50 am 
Quote:
: Check with one of your local forklift repair
: shops. The 225 was used in quite a few
: forklifts and were running on propane, we
: even had one at the place where I work.
: Don't think there is any differences except
: the addition of the Carb and the neccesary
: regulators.


Hardened exhaust valve seats are needed when using propane, everything else is fine the way it comes in a gasoline powered SL6 but I have heard propane can take more compression. (or boost!)
DD
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brent
PostPosted: Sat Oct 20, 2001 8:43 am 
Quote:
: Hardened exhaust valve seats are needed when
: using propane, everything else is fine the
: way it comes in a gasoline powered SL6 but I
: have heard propane can take more
: compression. (or boost!)
: DD

This is a factory converted propane Slant 6. I am going to bolt on my planed cylinder head. I was just wondering if they used more compression to start with on the propane engine? I don't want to raise it up too much by putting on a shaved head. thank you. brent

lauchlin@shaw.ca
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Craig
PostPosted: Sat Oct 20, 2001 9:20 am 
Did they make factory converted Propane slant 6's in vans?

I'm running my 1987 Dodge truck slant 6 on Propane. I just bolted on the propane stuff and away I went. slant 6's since 1972 or so had the harded valve seats for unleaded fuel wich is also needed for propane.
I'm running a dual fuel conversion (propane / gasoline), I just flip the switch to the desired fuel.

Yes, You can run higher compression on propane. I want to mill my head to get about 9.5:1 bacause I'm dual fuel. If it were straight propane I think you can safely run 10 or 10.5:1. Maybe more depending on what the engine is used for. My problem will be the hydraulic lifters and I'll probably need custom pushrod length to get it to work with milled head.

Anyone know where and how to get custom length pushrods for a hydraulic lifter slant 6 ???

cfield@ll.net
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Dave M
PostPosted: Sat Oct 20, 2001 8:51 pm 
Quote:
: Did they make factory converted Propane slant
: 6's in vans?
:
: I'm running my 1987 Dodge truck slant 6 on
: Propane. I just bolted on the propane stuff
: and away I went. slant 6's since 1972 or so
: had the harded valve seats for unleaded fuel
: wich is also needed for propane.
: I'm running a dual fuel conversion (propane /
: gasoline), I just flip the switch to the
: desired fuel.
:
: Yes, You can run higher compression on propane.
: I want to mill my head to get about 9.5:1
: bacause I'm dual fuel. If it were straight
: propane I think you can safely run 10 or
: 10.5:1. Maybe more depending on what the
: engine is used for. My problem will be the
: hydraulic lifters and I'll probably need
: custom pushrod length to get it to work with
: milled head.
:
: Anyone know where and how to get custom length
: pushrods for a hydraulic lifter slant 6 ???


Smith Brothers Pushods 800 367 1533 fax 541 389 8840 <A HREF="http://www.pushrods.net">www.pushrods.net</A> They have just about any length,any end and any diameter you could come up with. I have ordered many sets from these guys with no problems and the price is more than fair.


damuel@kalama.com
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Matt
PostPosted: Mon Oct 22, 2001 6:42 am 
Quote:
: This is a factory converted propane Slant 6. I
: am going to bolt on my planed cylinder head.


If you plan on scrapping the propane stuff, let me know, I'd be interested in getting it from you, especialy if it's fairly complete..

matt-


mhaskell@reliant.com
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Tom Schultz
PostPosted: Mon Oct 22, 2001 8:04 am 
Quote:
: Smith Brothers Pushods 800 367 1533 fax 541 389
: 8840 <A HREF="http://www.pushrods.net">www.pushrods.net</A> They have just about
: any length,any end and any diameter you
: could come up with. I have ordered many sets
: from these guys with no problems and the
: price is more than fair.


It's a good idea to run more compression on propane to compensate for the power loss. Propane usually averages about 104-106 octane, so 10-1 compression is no problem. My friend ran at 11-1, but he had a fairly big cam in his /6. If you are going to wind this up a little higher you may want to check your mixer sizing. It's always better to be a bit bigger with a mixer(carb) than smaller. I have a chart for mixer sizing and flow. If anyone needs this info, let me know and I can email it to you.
Tom
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brent
PostPosted: Mon Oct 22, 2001 11:48 am 
Quote:
: If you plan on scrapping the propane stuff, let
: me know, I'd be interested in getting it
: from you, especialy if it's fairly
: complete..
:
: matt-

Have it all but the tanks.free to good home

lauchlin@shaw.com
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Craig
PostPosted: Mon Oct 22, 2001 7:40 pm 
Quote:
: Have it all but the tanks.free to good home


I'll take all the parts you have. Email me for address to send the stuff to. I"ll pay shipping.

cfield@ll.net
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Matt
PostPosted: Mon Oct 29, 2001 11:40 am 
Brent,

I'm still interested in the setup. I tried to send you another message today from work, but I don't know if that system is working properly. If you don't get it, email me at my home address, <A HREF="mailto:jimyrigg@hotmail.com">jimyrigg@hotmail.com</A>.

matt-

mhaskell@reliant.com
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