Ported E7TE performanc on 393?
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 474
Likes: 0
From: The blues
Ported E7TE performanc on 393?
I have a set of thumper ported E7TEs that i was gonna use on a 302 build up, then 331, 347, maybe 351. I can't decide on a engine to push around 35" tires as a daily driver for the next year or 2 yet. (4.56-4.88 gears)
I can't really find a 351w short block, but since E7s came stock on 351's, how do you think a professionally ported set would do on a 393. Mike guarrentees that they outflow stock GT40s, with smaller ports and valves so i have more velocity.
not sure how much velocity i would need when building for the larger displacement though.
In the future, when i get a newer truck and feel the need for more power i could always get AFRs and a more aggressive cam.
I'm not looking for extreme torque or HP now, i want a reliable daily driver with good low-end for city traffic and occasional off-roading. A nice flat torque curve starting damn near idle-1200 rpms.
So with a matching intake and camshaft(comp or jay allen) would my ported E7TEs suffice? say around 350-400ft/lbs and 300-350 HP?
I can't really find a 351w short block, but since E7s came stock on 351's, how do you think a professionally ported set would do on a 393. Mike guarrentees that they outflow stock GT40s, with smaller ports and valves so i have more velocity.
not sure how much velocity i would need when building for the larger displacement though.
In the future, when i get a newer truck and feel the need for more power i could always get AFRs and a more aggressive cam.
I'm not looking for extreme torque or HP now, i want a reliable daily driver with good low-end for city traffic and occasional off-roading. A nice flat torque curve starting damn near idle-1200 rpms.
So with a matching intake and camshaft(comp or jay allen) would my ported E7TEs suffice? say around 350-400ft/lbs and 300-350 HP?
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Ported stock heads are restrictive on a 302 if maximum HP is your goal. On a 351 anything less than AFR185's will hurt TQ and HP. You will get big TQ with ported E7's on a 351 but the fun is all over at 4500rpm, and that would be closer to 3500rpm on a stroker. In all cases they'll make a little over 300hp if the porting work is good, the peak will just be lower the bigger the motor. I have driven the motor you want for the last 8 years(351 with ported heads, cam, and headers) and it's a lot of fun, blows away anything you can do with a 302.
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 474
Likes: 0
From: The blues
I asked the question before i did much research on the 393, and most info seems to point in the same direction you gave me. If i go with the 393, I'm beginning to believe i will definitely need better flowing heads, and sell my thumpers or save em for a stang later on.
However, if i could only find a 351w shortblock from a company with a good reputation then i might stay with them. Found proformance unlimited, but it seems no one has heard of them, so it's a no-go there. maybe some TFS or world products heads won't empty the wallet too bad.
However, if i could only find a 351w shortblock from a company with a good reputation then i might stay with them. Found proformance unlimited, but it seems no one has heard of them, so it's a no-go there. maybe some TFS or world products heads won't empty the wallet too bad.
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
are you wanting the motor to turn 35" tires? it would be cheaper and more benificial to get the gears installed now. a motor build will cost as much if not more and the gains might not be what you expect to turn those tires with stock gearing. not to mention the rest of the drivetrain and the strain to those parts.
Thread Starter
|
Senior User
Joined: Nov 2007
Posts: 474
Likes: 0
From: The blues
Kemi
I currently have the stock 3.55s pushing some 31x10.50s. And thats what'll be on there when i install whatever new motor i end up getting along with a zf-5 tranny. When i get the lift, tires, and probably 4.56 gears i'll try to get them installed at the same time, same place.
good lookin out though.
good lookin out though.
Thread
Thread Starter
Forum
Replies
Last Post
Redneckfordf2502002
1987 - 1996 F150 & Larger F-Series Trucks
5
Mar 4, 2015 08:40 PM
tennesseeike
1987 - 1996 F150 & Larger F-Series Trucks
12
Jun 18, 2013 10:07 PM
screaminford
Performance & General Engine Building
5
Apr 20, 2012 04:12 PM
monkei
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
45
Sep 25, 2008 12:41 AM
71dusterdan
Performance & General Engine Building
6
Feb 20, 2008 09:23 PM
