Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Performance & General Engine Building
Sign in using an external account
Register Forgot Password?

LinkBack Thread Tools Search this Thread
Old 06-21-2013, 04:50 PM
77_F150_4x4 77_F150_4x4 is offline
Elder User
Join Date: Feb 2000
Location: Temperance,MI
Posts: 728
77_F150_4x4 is gaining momentum as a positive member of FTE.
My 400 build adding propane to the mix help...

Hey guys, only 7 months later I am suppose to get my 400 back from the machine shop for, cam bearings (TMeyers), install ARP rod bolts and resize rods, hang the new pistons(Tim also), gap and install rings, line hone the mains if needed with going main studs and light hone on cylinders, check square on deck, hot tank it again freeze plugs oil galley plugs also. Not happy to say the least I dropped it off before Christmas.
Now the set up I was going to run was a full ported 351w truck lower to 5.0 truck upper and all to my trick flow heads, but after riding around in my friends 2.3 just propane ranger and seeing how much it costs him to fill it why not. Anyone have experience with a 351m/400 on propane? I have a single plane intake I was going to originally use for my EFI, would a single plane with propane work? I just want to use a impco 425(modified one) mixing hat apparently I get to see how to build a set up to adapt it to a throttle body next week also, run a 80mm throttle body with the single plane intake weld a set of injector bungs in and I can go dual fuel. The exhaust valves are ferrel 6000 series, will these hold up to propane?

Thank you,
96 F150 4x4 Xcab short bed 351W/E4OD Eclipse Package- project 400 OBD-II E4OD, 3/4ton parts
Reply With Quote
Old 07-01-2013, 06:36 PM
crsmiffy crsmiffy is offline
Elder User
Join Date: Jan 2011
Location: Tanilba bay NSW Australia
Posts: 792
crsmiffy is gaining momentum as a positive member of FTE.
hey mate-I run a 425 impco but have it on top of a holley 725 (dual fuel)-carby runs like crap even with a standard aircleaner on it, probably from sitting for a while.
T meyer 9.5 to 1 pistons to suit aussie heads, boss valve springs, street dominator single plane manifold and a comps cam 265DEH.
This is in a 72 LTD with the original C6 and 2.7 gears.
If i am feeling like being a boy I leave it in second gear and once the engine is around the 2500rpm mark it starts to go really well.
It definitely goes a lot harder than the old engine (which was worn out) with the standard 2 barrel carb/manifold.
Hardened seats on the exhaust valves.
From the people I dealt with when I rebuilt it, propane likes single plane manifolds so 2 thumbs up there.
The injected dual fuel fuel thing sounds pretty cool, but if I did it again I would go dedicated propane (LPG here in Oz) and get up around 10.5 to 1.
I would then remove all the obsolete fuel lines, tank etc.
Hope this helps
Reply With Quote
Old 07-01-2013, 06:36 PM

Similar Threads
Thread Thread Starter Forum Replies Last Post
Propane and new ideas...sort of. 77_F150_4x4 Alternative Fuels, Hybrids & Mileage 0 06-08-2014 09:05 PM
Engine Idea Help... 77_F150_4x4 Performance & General Engine Building 4 10-28-2012 07:14 PM
Now How? Rejection_Man 1987 - 1996 F150 & Larger F-Series Trucks 25 06-10-2008 12:37 PM
very, very close roger dowty 335 Series- 5.8/351M, 6.6/400, 351 Cleveland 16 09-17-2007 08:07 AM

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Performance & General Engine Building

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »

All times are GMT -5. The time now is 09:38 AM.

Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup