Cylinder Heads and LPG - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 02-19-03, 02:38 AM Thread Starter
Chasing 500rwkw
DansEdgli's Avatar
Join Date: Apr 2002
Location: Melbourne
Posts: 3,176
Cylinder Heads and LPG

I have an alloy head on my 250 xflow and need to know if i need to do anything to the head to run it on LPG??
Will i need new valve seats?
Will it be fine as is?

It has had a stage 3 going over by COME racing and has larger valves and porting etc etc.

Also when converting to straight gas should i use the EFI manifold or use the redline that i already have.
This will turn into a straight gas turbo car by the end of the year.
If i use the EFI what do i do about the injectors.

Thanks Again

DansEdgli is offline  
Sponsored Links
post #2 of 5 (permalink) Old 02-19-03, 04:20 AM
F*#K the government
damage181's Avatar
Join Date: May 2002
Location: Singleton NSW
Age: 45
Posts: 285
If it is an unleaded head I wouldnt do anything to the head at this time, I am not sure but a unlead head is most likely to have better valves because of the lack of lead in the fuel that is used for lubrication.

EFI intake would be a much better manifold for gas than the redline, u will most probably get better torque at lower rpm as well.

either block the injector holes or leave them in there

I want a EBII Ghia wagon or EF/EL 351W twin headlights, twin exhaust, gas injection and TWIN TURBO'S!
Under construction new website!
damage181 is offline  
post #3 of 5 (permalink) Old 02-19-03, 01:06 PM Thread Starter
Chasing 500rwkw
DansEdgli's Avatar
Join Date: Apr 2002
Location: Melbourne
Posts: 3,176
Sweet thanks for the info. It is an unleaded head.
If it was straight gas i wouldnt need the computer or any sensors would i?
When the block gets switched later in the year ill get the head serviced and stellite valve seats put in place for that extra security.

Thanks again.
DansEdgli is offline  
post #4 of 5 (permalink) Old 02-20-03, 01:58 AM
Birth, Drift, Death...
Rollin's Avatar
Join Date: Jun 2002
Location: Drifting Brisbane...
Age: 34
Posts: 3,039
yeah EFI intake sounds good!

as above, plug the injector holes and no worries.

get rid of the factory inlet piping though and run a pipe to the front of the car with a pod on the end, you will have heaps more space in the engine bay.

damn you people with boost - i want some!!!!!!

Slick, Quick and Fulliii SIK!!!
Proud TQE Operator

197.4hp at the wheels, 14.505@152.46km/h
Tuning in progress...
I can get new Genuine Holden/Ford/Audi/Land Rover/Honda parts cheap, PM me!
Rollin is offline  
post #5 of 5 (permalink) Old 07-18-03, 05:52 AM
Whats traction?
xdc351's Avatar
Join Date: Jul 2003
Location: Smokin melb's eastern suburbs
Age: 36
Posts: 2,197
If you have some money to spend on the LPG setup, live in melbourne and want over 130rwkw give the guys @ LP GAS 1 a call, they are in Lilydale Vic and have a setup involving a later model EFI manifold which makes a Ton of power. I am switching over to straight LPG on my 6 but i'm really not interested in spending any more than I have to, i need to focus my funds on the 351!

I'm going to keep the redline manifold and chuck on an impco 425 straight LPG carby with a 1" spacer and a 600 holley base. I'm also getting a custom wade cam and new lifters. While the engine is out i'll also put a bigger oil pan with windage tray, crank scraper, etc on it. I'm hoping for 160-170HP but more importantly I want to hit 15.30 down the strip. Ran 15.63 @ 87mph at calder tonight, but there is not much more left in the current setup (possibly a bit left in the driver however )

Just like a Tsunami.

Last edited by xdc351; 07-18-03 at 07:33 PM.
xdc351 is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > LPG Tech

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome