E street heads 1.90s
11-12-2014, 07:49 PM
#1
Thread Starter
Join Date: Sep 2012
Location: British Columbia
Posts: 21
E street heads 1.90s
Ok, so I have seen tons of mixed reviews for these things. I can get a set for 650 brand new with valve train. Should I bother? I currently have a set of e7s in my 88 5.0 HO and have a set of gt40ps sitting around. I know I would have to swap springs on the estreets. I will be swapping cams to either a tf stage 1 or a ford letter cam so what springs would fit in those head and handle the pressure
11-12-2014, 08:40 PM
#2
There better than what you currently have. For about 500 hundred bucks more you could do a lot better. If it were me I'd bolt on the gt40 heads and save up for a good set of heads like trick flow or AFR. As far as springs something like comp cams part number 985-16 should work.
Last edited by bluebeastsrt; 11-12-2014 at 08:45 PM.
11-12-2014, 08:42 PM
#3
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
read this thread.............pay attention to ED Curtis' response a few posts down.............by the time you redo the valvetrain on those heads, IMO it won't be worth it...the valvetrain is not for roller cam set ups
http://forums.corral.net/forums/5-0-...eet-heads.html
http://forums.corral.net/forums/5-0-...eet-heads.html
11-13-2014, 02:18 AM
#4
Thread Starter
Join Date: Sep 2012
Location: British Columbia
Posts: 21
There better than what you currently have. For about 500 hundred bucks more you could do a lot better. If it were me I'd bolt on the gt40 heads and save up for a good set of heads like trick flow or AFR. As far as springs something like comp cams part number 985-16 should work.
11-13-2014, 02:19 AM
#5
Thread Starter
Join Date: Sep 2012
Location: British Columbia
Posts: 21
read this thread.............pay attention to ED Curtis' response a few posts down.............by the time you redo the valvetrain on those heads, IMO it won't be worth it...the valvetrain is not for roller cam set ups
http://forums.corral.net/forums/5-0-...eet-heads.html
http://forums.corral.net/forums/5-0-...eet-heads.html
11-13-2014, 09:57 AM
#6
The springs you use will be based off of the cams lift. Figure out what cam your going to use. And buy it before you install the heads. Then do the heads and the cam install at the same time! If you do do springs save the old stock springs so you can reinstall them on the GT40 heads if you ever find yourself in a position to purchase a good set of heads. The GT40s are still worth a few hundred buck for you to resell. Here's a link about GT40 heads that you'll probably get a lot out off.
http://www.fiveohinfo.com/performanc...html#gt40power
http://www.fiveohinfo.com/performanc...html#gt40power
Last edited by bluebeastsrt; 11-13-2014 at 10:05 AM.
11-13-2014, 10:46 AM
#7
4th Gear Member
Join Date: Nov 2013
Location: arizona
Posts: 1,398
E STREET HEADS
$650 is a smokin deal for new ones . . new valve springs that can handle the tf-1 cam can be had for $100.00from alex's parts and comp cams . . you need new springs for the gt40's anyway but you can run a bit more compression with the e street heads plus they are lighter, flow decent for what they are and they look cool . . if you get money later you can sell those on ehay and advertise upgraded valve springs . . if your gt40's need a valve job and a guide or too you might spend around $250 on getting them done plus $100.00 for springs, thats obviously $350 . . you can maybe sell them as is for $100.00 then you are into the e streets with new springs for just $350.00 more than you would be with the gt40's.
http://www.alexsparts.com/products/V...351C-FORD.html
if you are building a performance engine you need to run premium gas and as much compression as you can for the octane being used . . the gt40 heads have fairly large combustion chambers so it is best to mill them to around 58 cc's or .032" from stock, whichever comes first . . milllng more than this may cause intake manifold fitrment problems which can be corrected by milling the face of the intake on the heads or the intake manifold whivh gets a bit pricey.
also, if your quench distance is more than around .040" it is best to reduce it to .035 - .040" . . this will not only increase compression but it will also reduce potential for detonation . . the easy way to determine your clearance is simply put a piston at tdc tgen lay something flat over the edge of the cylinder and slip some feeler gauges under it.
cometic makes gaskets in different thicknesses that will help.
also, the id of the gasket should be the same id as the head, cometic makes these also but the price is a bit ugly at around $90.00 each.
it will help if you grind the lump in the roof of the heads down and have the intake valves back cut . . don't grind the floor of the exhaust.
for springs, comps are great but alex's parts has deals on them . . i have never used his stuff but never heard of any of his springs breaking either . . they claim the kit below will easily handke the tf-1 cam but i would have them include .015" - .020" shims and put them under the springs or you can upgrade to the next stiffer kit he has for $20.00.
http://www.alexsparts.com/sb-ford-gt...ller-580-lift/
.
$650 is a smokin deal for new ones . . new valve springs that can handle the tf-1 cam can be had for $100.00from alex's parts and comp cams . . you need new springs for the gt40's anyway but you can run a bit more compression with the e street heads plus they are lighter, flow decent for what they are and they look cool . . if you get money later you can sell those on ehay and advertise upgraded valve springs . . if your gt40's need a valve job and a guide or too you might spend around $250 on getting them done plus $100.00 for springs, thats obviously $350 . . you can maybe sell them as is for $100.00 then you are into the e streets with new springs for just $350.00 more than you would be with the gt40's.
http://www.alexsparts.com/products/V...351C-FORD.html
if you are building a performance engine you need to run premium gas and as much compression as you can for the octane being used . . the gt40 heads have fairly large combustion chambers so it is best to mill them to around 58 cc's or .032" from stock, whichever comes first . . milllng more than this may cause intake manifold fitrment problems which can be corrected by milling the face of the intake on the heads or the intake manifold whivh gets a bit pricey.
also, if your quench distance is more than around .040" it is best to reduce it to .035 - .040" . . this will not only increase compression but it will also reduce potential for detonation . . the easy way to determine your clearance is simply put a piston at tdc tgen lay something flat over the edge of the cylinder and slip some feeler gauges under it.
cometic makes gaskets in different thicknesses that will help.
also, the id of the gasket should be the same id as the head, cometic makes these also but the price is a bit ugly at around $90.00 each.
it will help if you grind the lump in the roof of the heads down and have the intake valves back cut . . don't grind the floor of the exhaust.
for springs, comps are great but alex's parts has deals on them . . i have never used his stuff but never heard of any of his springs breaking either . . they claim the kit below will easily handke the tf-1 cam but i would have them include .015" - .020" shims and put them under the springs or you can upgrade to the next stiffer kit he has for $20.00.
http://www.alexsparts.com/sb-ford-gt...ller-580-lift/
.
Last edited by barnett468; 11-13-2014 at 02:15 PM.
11-13-2014, 01:12 PM
#8
Thread Starter
Join Date: Sep 2012
Location: British Columbia
Posts: 21
E STREET HEADS
$650 is a smokin deal for new ones . . new valve springs that can handle the tf-1 cam can be had for $100.00from alex's parts and comp cams . . you need new springs for the gt40's anyway but you can run a bit more compression with the e street heads plus they are lighter, flow decent for what they are and they look cool . . if you get money later you can sell those on ehay and advertise upgraded valve springs . . if your gt40's need a valve job and a guide or too you might spend around $250 on getting them done plus $100.00 for springs, thats obviously $350 . . you can maybe sell them as is for $100.00 then you are into the e streets with new springs for just $350.00 more than you would be with the gt40's.
http://www.alexsparts.com/products/V...351C-FORD.html
if you are building a performance engine you need to run premium gas and as much compression as you can for the octane being used . . the gt40 heads have fairly large combustion chambers so it is best to mill them to around 58 cc's or .032" from stock whichever comes forst . . milllng more than this may cause intake manifild fitrment problems which can be corrected by milling the face of the intake on the heads or the intake manifold whivh gets a bit pricey.
also, if your quench distance is more than around .040" it is best to reduce it ti .035 - .040" . . this will not only increase compressiin but ut will also reduce potential for detonation . . the easy way to determine youyr clearance is simply put a poiston at tdc tgen lay something flat over the edge of the cylinder and slip some feeoer hauges undee it.
cometic makes gaskets in different thicknesses that will help.
also, the id of the gasket should be the same id as the head, cometic makes these also but the price is a bit ugly at around $90.00 each.
it will help if you grind the lump in the roof of the heads down and have the intake valves back cut . . don't grind the floor of the exhaust.
for springs, comps are great but alex's parts has deals on them . . i have never used his stuff but never heard of any of his springs breaking either . . they claim the kit below will easily handke the tf-1 cam but i would have them include .015" - .020" shims and put them under the springs or you can uograde to the next stiffer kit he has for $20.00.
http://www.alexsparts.com/sb-ford-gt...ller-580-lift/
.
$650 is a smokin deal for new ones . . new valve springs that can handle the tf-1 cam can be had for $100.00from alex's parts and comp cams . . you need new springs for the gt40's anyway but you can run a bit more compression with the e street heads plus they are lighter, flow decent for what they are and they look cool . . if you get money later you can sell those on ehay and advertise upgraded valve springs . . if your gt40's need a valve job and a guide or too you might spend around $250 on getting them done plus $100.00 for springs, thats obviously $350 . . you can maybe sell them as is for $100.00 then you are into the e streets with new springs for just $350.00 more than you would be with the gt40's.
http://www.alexsparts.com/products/V...351C-FORD.html
if you are building a performance engine you need to run premium gas and as much compression as you can for the octane being used . . the gt40 heads have fairly large combustion chambers so it is best to mill them to around 58 cc's or .032" from stock whichever comes forst . . milllng more than this may cause intake manifild fitrment problems which can be corrected by milling the face of the intake on the heads or the intake manifold whivh gets a bit pricey.
also, if your quench distance is more than around .040" it is best to reduce it ti .035 - .040" . . this will not only increase compressiin but ut will also reduce potential for detonation . . the easy way to determine youyr clearance is simply put a poiston at tdc tgen lay something flat over the edge of the cylinder and slip some feeoer hauges undee it.
cometic makes gaskets in different thicknesses that will help.
also, the id of the gasket should be the same id as the head, cometic makes these also but the price is a bit ugly at around $90.00 each.
it will help if you grind the lump in the roof of the heads down and have the intake valves back cut . . don't grind the floor of the exhaust.
for springs, comps are great but alex's parts has deals on them . . i have never used his stuff but never heard of any of his springs breaking either . . they claim the kit below will easily handke the tf-1 cam but i would have them include .015" - .020" shims and put them under the springs or you can uograde to the next stiffer kit he has for $20.00.
http://www.alexsparts.com/sb-ford-gt...ller-580-lift/
.
11-13-2014, 01:33 PM
#9
4th Gear Member
Join Date: Nov 2013
Location: arizona
Posts: 1,398
Thank you very much, I greatly appreciate the kind words, but I forgot to add the followig, my apologies for the oversight.
The GT head flow specs are from 2 separate sources, the Eddy ones are from Eddy.
GT-40P Explorer ….…1.84 ….…1.46 ….......61 .128 .169 .195 .196 .193 .......52 ..90 ..123 .135 .139 .142
GT-40P Explorer……..1.84 …….1.46………….54 .118 .158 .183 .185 ..n/a ………46 …93 ..115 .123 .126 ..n/a
Eddy E Street ………..1.90……..1.60………….65 .121 .174 .216 .242 .249 ………42 ...92 ..130 .150 .162 .168
.
The GT head flow specs are from 2 separate sources, the Eddy ones are from Eddy.
GT-40P Explorer ….…1.84 ….…1.46 ….......61 .128 .169 .195 .196 .193 .......52 ..90 ..123 .135 .139 .142
GT-40P Explorer……..1.84 …….1.46………….54 .118 .158 .183 .185 ..n/a ………46 …93 ..115 .123 .126 ..n/a
Eddy E Street ………..1.90……..1.60………….65 .121 .174 .216 .242 .249 ………42 ...92 ..130 .150 .162 .168
.
Last edited by barnett468; 11-13-2014 at 01:40 PM.
11-13-2014, 11:02 PM
#10
Thread Starter
Join Date: Sep 2012
Location: British Columbia
Posts: 21
Thank you very much, I greatly appreciate the kind words, but I forgot to add the followig, my apologies for the oversight.
The GT head flow specs are from 2 separate sources, the Eddy ones are from Eddy.
GT-40P Explorer . 1.84 . 1.46 .......61 .128 .169 .195 .196 .193 .......52 ..90 ..123 .135 .139 .142
GT-40P Explorer ..1.84 .1.46 .54 .118 .158 .183 .185 ..n/a 46 93 ..115 .123 .126 ..n/a
Eddy E Street ..1.90 ..1.60 .65 .121 .174 .216 .242 .249 42 ...92 ..130 .150 .162 .168
.
The GT head flow specs are from 2 separate sources, the Eddy ones are from Eddy.
GT-40P Explorer . 1.84 . 1.46 .......61 .128 .169 .195 .196 .193 .......52 ..90 ..123 .135 .139 .142
GT-40P Explorer ..1.84 .1.46 .54 .118 .158 .183 .185 ..n/a 46 93 ..115 .123 .126 ..n/a
Eddy E Street ..1.90 ..1.60 .65 .121 .174 .216 .242 .249 42 ...92 ..130 .150 .162 .168
.
