• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

what makes e6 heads bad?

  • Thread starter Thread starter johnsplowing207
  • Start date Start date Mar 14, 2010
J

johnsplowing207

New Member
Mar 1, 2010
99
0
0
sanford maine
Mar 14, 2010
#1
  • Mar 14, 2010
  • #1
what makes the stock 86 e6 heads bad?
 
D

dmc919

Member
Sep 4, 2006
41
0
6
Mar 14, 2010
#2
  • Mar 14, 2010
  • #2
mainly the heart shaped combustion chambers shroud the valves
 
5

57fairlane

New Member
Apr 2, 2005
560
0
0
Oakwood, GA
Mar 14, 2010
#3
  • Mar 14, 2010
  • #3
if you take the time to shape the chambers the actually turn out pretty good.

I remember the valves being .100+ higher in the head. Maybe .150"?

The ports are almost exactly like an e7 but you could run a bigger cam with all the PTV clearance.
 
J

johnsplowing207

New Member
Mar 1, 2010
99
0
0
sanford maine
Mar 14, 2010
#4
  • Mar 14, 2010
  • #4
are these good heads for the money ebay item number 120542063815
 
5

57fairlane

New Member
Apr 2, 2005
560
0
0
Oakwood, GA
Mar 15, 2010
#5
  • Mar 15, 2010
  • #5
johnsplowing207 said:
are these good heads for the money ebay item number 120542063815
Click to expand...

maybe $50 and the only reason that would be is because you would have $50 in milling them and cleaning them.

you can get stock e7 heads for free or dang near it.
 
R

RatStang

New Member
Feb 11, 2010
544
0
0
Mar 15, 2010
#6
  • Mar 15, 2010
  • #6
I thought that question had already been answered here:

http://www.stangnet.com/mustang-forums/808933-what-heads-my-86-a-2.html


... or in one of the other half dozen threads you started about this topic.

Not trying to be a PITA but what question is still unanswered?

The E6 heads were NEVER designed with performance in mind. They were a band-aid to satisfy a new emmision standard. They're the bastard child of all the heads that ever made their way onto a Stang. Yes... they can be made to produce some semblance of performance but it's cost prohibitive. The money you'd spend to get them that way would probably have you half way to decent set of after market castings.

If you're hell bent on making your E6 heads work because you're unable to afford an alternative at this point, then just slap the damned things back on the car and run them until you can. There's no point in trying to "soup them up". For that matter, throw the OEM cam and heads back on the car and call it a day until you're able to match up a combo that WILL be a benefit.

Regardless of much you WANT them to, they're not going to magically produce a 12 second car for you. hehe
 
J

johnsplowing207

New Member
Mar 1, 2010
99
0
0
sanford maine
Mar 15, 2010
#7
  • Mar 15, 2010
  • #7
I bought a set of e7 heads this morning.with SS valves and .600 lift springs.
what size are the stock valves in e7te-pa heads just want to see if there stock size on there.the CC on these heads 64cc?
 
R

RatStang

New Member
Feb 11, 2010
544
0
0
Mar 15, 2010
#8
  • Mar 15, 2010
  • #8
Combustion Chamber Size- 54 to 58 cc
Rocker Mount type- Press In Stud
Valves: 1.78 Int./ 1.45 Exh.


--And for a rough comparison:

5spd GT said:
These are summed up for you...

Head Flow Data In CFM-Source: Stan Weiss' - Cylinder Head Flow Data at 28 Inches of Water

Head......................................Head CC..........Valve sizing (Int/Exh)...Flow at .500” lift

E7 Irons............................................. ......................1.78/1.45...........159/109
E7 Ported Power Heads...........................................1. 90/1.60 ...........217/174
Ford GT-40 E7TZ.......................(60)................... ......1.84/1.54...........187/129
Ford GT-40 Y303 Alum..............(54).........................1.9 4/1.54............212/134
Ford GT-40 X303 Alum..............(64/58)....................1.94/1.54...........238/173
AFR 165 Street.........................(58-64)....................1.90/1.60............243/185
AFR 185 Street/Strip................(58-64).....................2.02/1.60...........267/185
AFR 205 Race...........................(58)............... ...........2.08/1.60...........291/225
AFR 225 Race...........................(60)............... ...........2.08/1.60...........295/242
Canfield 192 Alum....................(54/58/65)...............2.02/1.60............262/190
Edelbrock #6022 (170cc).........(60).........................1.90/1.60............225/170
Edelbrock #6025 (170cc).........(60).........................2.02/1.60............229/172
Edelbrock Victor Jr................................................ ...2.05/1.60............266/193
Holley Systemax Heads...........(61).........................1.94/1.60.............221/167
Pro Topline Alum (180cc).........(58/64)....................2.02/1.60 ............271/193
TFS Street Heat (192cc).......... (64).........................2.02/1.60.............255/190
Trick Flow High Port..................(64)........................ .2.02/1.60.............257/183
Trick Flow TW’s (170cc)............(61).........................2. 02/1.60.............251/187
Click to expand...
 
R

RatStang

New Member
Feb 11, 2010
544
0
0
Mar 15, 2010
#9
  • Mar 15, 2010
  • #9
Meh.... I see that the spacing is all sckewed from the quote... just refer here:


http://www.stangnet.com/mustang-forums/691235-wheres-head-flow-chart-sbf.html
 
You must log in or register to reply here.

Similar threads

D
Engine HO cam in non HO roller block ‘93 f150
  • DanC1993f150
  • Mar 21, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
226
Fox 5.0 Mustang Tech Mar 29, 2026
General karthief
Engine Fuel not pumping
  • Creomod
  • Apr 13, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
43
Views
721
Fox 5.0 Mustang Tech May 3, 2026
Shakerhood
J
Engine Tuning...?
  • justadude07
  • May 30, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
144
Fox 5.0 Mustang Tech Jun 6, 2026
Blown88GT
9
Engine Donor '00 Mountaineer meet '91 Fox
  • 91firecracker
  • May 11, 2026
  • Fox 5.0 Mustang Tech
  • 2 3
Replies
41
Views
685
Fox 5.0 Mustang Tech May 28, 2026
91firecracker
9
M
Paint and Body factory paint colors
  • Magnet86
  • Jan 15, 2026
  • Fox 5.0 Mustang Tech
Replies
7
Views
359
Fox 5.0 Mustang Tech Feb 3, 2026
85GTStangGuy
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?