XR6 head - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 04-03-02, 06:43 PM Thread Starter
Registered User
EB2Ghia's Avatar
Join Date: Jul 2002
Location: Canberra
Posts: 695
XR6 head

I want to get the xr6 head for my car. how much ****ing around do you think im gunna have???

EB2GHIA Long Gone

1973 XB Coupe Fairmont 302, koni shocks, lovell super low fronts, extra leaf and reset leaf spings, dual exhaust, advance headers. Resprayed Vivid Blue Pearl. 17x8 & 17x10 inch FR Simmons.
EB2Ghia is offline  
Sponsored Links
post #2 of 6 (permalink) Old 04-03-02, 06:54 PM
400 kg ego
Troutman's Avatar
Join Date: Apr 2002
Location: Melbourne
Posts: 6,188
The last time this was discussed, people concluded it was better and cheaper to go for high quality aftermarket components rather than XR6 heads, etc.

I don't know of anyone who has done that particular conversion so can't be of any more help...

Jack Travis, E-Series Acting President

1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S
Troutman is offline  
post #3 of 6 (permalink) Old 04-03-02, 07:31 PM
Posts: n/a
According to Mick Webb SVO, the only real difference to the XR head is a 30 thou shave.
post #4 of 6 (permalink) Old 04-04-02, 06:26 PM
Posts: n/a
XR6 head

The XR6 head has a few more differences than a 30 thou shave. The shave results in compression beiong 8.8:1 rather than 8.5:1 standard.

The Au and Ef (not so sure about the EF) has 9:1 compression anyway.

It supposedly has 39 vs 37 mm exhaust valves, and different porting. Not too much though.

I had looked into getting some porting done when I had my head off, but apparently there's not much to be done.

The head flows pretty well as standard from what I understand.

Still a slight massage to remove casting dags might be advantageous.

post #5 of 6 (permalink) Old 04-04-02, 06:40 PM
Posts: n/a

yeh the xr6 head was advertised by ford as having a higher flowing better ported head. What they did i am not sure but for the cost of one just have yours ported and the exhaust also polished, if u get really excited have ef-el valves installed as they are a bit bigger
post #6 of 6 (permalink) Old 04-04-02, 10:04 PM
Posts: n/a
Re: heads

ED comp ratio is 8.8:1 for the standard engine, 9.01:1 for the XR.
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech
Gear in this thread - Powered by O'Reilly Auto Parts

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
XR6 head crodarian Inline 6 Tech 17 12-09-02 08:57 PM
EF/EL XR6 head on an EA block??? sleepwalker Inline 6 Tech 2 10-13-02 11:46 PM
BA Falcon Engine Reveal RPO83 Ford Worldwide News 0 09-04-02 08:27 AM
EA Vs ED xr6 Head eng-fnm Inline 6 Tech 4 08-21-02 07:44 PM

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