Clevo 4V heads (4 dot) - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 02-26-2005, 05:35   #1 (permalink)
Registered User
 
Join Date: Jun 2003
Location: Townsville
Age: 41
Posts: 1,212
Clevo 4V heads (4 dot)

FYI

I thought (4 dot) 4V heads were off a GT Phase 2,3 or 4 and were machined for solid cams !!!
I was wrong !!!
Anyone know about 4V (4 dot) heads ???
Attached Images
File Type: jpg 4 dot heads.jpg (22.3 KB, 98 views)
__________________
regards
Stephen
clevo400 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-26-2005, 06:57   #2 (permalink)
'60 F100 Q-Code
 
davis's Avatar
 
Join Date: Mar 2004
Location: Washington, USA
Posts: 750
Re: Clevo 4V heads (4 dot)

Quote:
Originally Posted by clevo400
FYI

I thought (4 dot) 4V heads were off a GT Phase 2,3 or 4 and were machined for solid cams !!!
I was wrong !!!
Anyone know about 4V (4 dot) heads ???
There is nothing special about the 4. heads in the US. The major difference between them and the plain 4 heads is that the chambers are slightly larger. The 4. heads are about a nominal 68cc and the 4 (no dot) heads are smaller at a nominal 64cc.

There isn't anything else that is really different about them. The 4. heads are a revision that slightly increased chamber size to help prevent detonation in "late" model engines where pinging was an issue with then-available regular fuel. A couple of CCs, combined with the retarded camshaft, reduced compression enough that the engines were more stable with regular fuel. Ford recommended premium fuel for 4V equiped engines, but people often didn't follow the recommendations and used regular fuel with warranty-related problems as the result. Ford's remedy for this was increasing the chamber size enough to help prevent pinging.

Neither was particularly likely to have mechanical valve train, as most were installed on M-code, hydraulic cammed engines with non-adjustable valve train.

:davis:
davis is offline   Reply With Quote
Old 03-01-2005, 13:25   #3 (permalink)
Registered User
 
crochunter's Avatar
 
Join Date: Jan 2005
Posts: 828
Re: Clevo 4V heads (4 dot)

I had a set of 4vs with a dot and they were closed chamber heads with 65cc.
crochunter is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
4v manifold with 2v heads azza Cleveland Tech 11 02-28-2005 15:36
AFD 4v alloys........ Jet711 Cleveland Tech 28 01-16-2005 02:22
4 speed auto in XE Clevo ?? ESP Trans | Driveline 9 07-01-2004 00:02
Another NASCAR question paull Cleveland Tech 6 03-24-2004 00:45
4 Speed Auto for 351 Clevo RevHeadRon Trans | Driveline 4 08-16-2003 14:50

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 11:45.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.