Da hump...
Casting Numbers
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Junior User
Joined: Mar 2008
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From: Bartow, Fl
Casting Numbers
I have a 302cid out of an 89' F-150 with casting numbers of E7TE ( meaning...87 Truck Engine? right.
It also has the spider and dogbones under the intake....Does this mean rollers or roller ready? why use the dogbones if it isn't roller?
Sorry for all the questions but I need to know what dist. gear to use?
And I would just like to know...I really don't want to break it open again.
Thanks guys ....
<TABLE cellSpacing=6 cellPadding=0 width="100%" border=0 itxtvisited="1"><TBODY itxtvisited="1"><TR itxtvisited="1"><TD noWrap itxtvisited="1">
</TD><TD width="100%" itxtvisited="1">(Conanski) hey, there is a bump (or) port on the inside top of the exaust ports maybe a half inch all together it steps down twice.
will take a pic soon.
</TD></TR></TBODY></TABLE>
It also has the spider and dogbones under the intake....Does this mean rollers or roller ready? why use the dogbones if it isn't roller?
Sorry for all the questions but I need to know what dist. gear to use?
And I would just like to know...I really don't want to break it open again.
Thanks guys ....
<TABLE cellSpacing=6 cellPadding=0 width="100%" border=0 itxtvisited="1"><TBODY itxtvisited="1"><TR itxtvisited="1"><TD noWrap itxtvisited="1">
</TD><TD width="100%" itxtvisited="1">(Conanski) hey, there is a bump (or) port on the inside top of the exaust ports maybe a half inch all together it steps down twice.
will take a pic soon.
</TD></TR></TBODY></TABLE>
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Junior User
Joined: Mar 2008
Posts: 53
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From: Bartow, Fl
Are you saying that because of the casting numbers?
Is there some place to look it up?
I found a mustang fourm but the list did not go up to my year.
So roller motors are H.O.?
Thanks for the help
Is there some place to look it up?
I found a mustang fourm but the list did not go up to my year.
So roller motors are H.O.?
Thanks for the help
FTE Legend
Joined: Jun 2006
Posts: 31,930
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From: Ottawa, Ontario
All roller motors are not HO, and unfortunantely the casting numbers don't tell you what vehicle the motor was installed in, just what product line the castings were originally designed for.
The air injection hump on the roof of the exhaust ports can help identify the heads, the E7 heads have a smaller one while the E6 heads had the largest one. In the pic below on the left is an E7 head and you can clearly see the hump, the hump on the E6 heads is roughly twice this size.
The air injection hump on the roof of the exhaust ports can help identify the heads, the E7 heads have a smaller one while the E6 heads had the largest one. In the pic below on the left is an E7 head and you can clearly see the hump, the hump on the E6 heads is roughly twice this size.
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To give us home porters something to grind on.
It's a smog thing , it has to do with recirculating the exhaust gasses so they are more sufficiently depleted of combustable gas vapors. It's pretty technical.... (Translation: I don't know enogh about it to explain it any better
).
It's a smog thing , it has to do with recirculating the exhaust gasses so they are more sufficiently depleted of combustable gas vapors. It's pretty technical.... (Translation: I don't know enogh about it to explain it any better ).
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FTE Legend
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From: Ottawa, Ontario
Yeah it's a smog thing. The hump is part of the air injection system, there is a hole in the center of it connecting to a riffle bore that runs the length of the head. Typically there is a tube attaching the opening of this bore on both heads at the back of the motor, and this is connected to the air pump via some plumbing and some solenoid controlled valves. The computer controls the solenoids and pumps air into the heads or directly into the cats to help burn off excess combustion materials.
The stupid thing is there is really no need to make the hump as big as they did on the E6 heads, and it's partially responsible for making these particular castings one of the worst flowing Ford head ever.
The stupid thing is there is really no need to make the hump as big as they did on the E6 heads, and it's partially responsible for making these particular castings one of the worst flowing Ford head ever.
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