LS7 in a fox....some questions about the swap..
Thread Starter
Teching In
Joined: Oct 2006
Posts: 8
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LS7 in a fox....some questions about the swap.. Hey guys right now I have a h/c/i nitrous 302 in my fox body, its fun but of course Im ready for my next setup. Ive always loved the way the LS series motors sound and how much power they make so I figured why the hell not. I was planning on a dart block 427 stroker (windsor type) and its going to be about the same price as an LS7, and honestly Id rather have the LS7.
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Originally Posted by Aliate X
Hey guys right now I have a h/c/i nitrous 302 in my fox body, its fun but of course Im ready for my next setup. Ive always loved the way the LS series motors sound and how much power they make so I figured why the hell not. I was planning on a dart block 427 stroker (windsor type) and its going to be about the same price as an LS7, and honestly Id rather have the LS7.
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Spend a weekend on this forum researching more about the LSx info.... and THEN ask any remaining questions. There is tons of it.
There are so many ways to build a 402 (LS2 block 4" bore)/416 (L92 block 4.065" bore), or 427ci motor (LS7 block 4.125" bore) all with 4" cranks that will all make similar power. The LS7 should make the most power as the heads/intake are the best; however it will come at a $3-4K+ premium. If you don't need dry sump then you probably don't need an LS7 block.
Also look in the conversion/hybrid section as there a number of FOX bodies running around with LS1 power. Dimensionally all the LSx engines they are the same and most of the parts are interchangeable. The LSx production composite truck intakes sit higher... the LS7 intake will sit slightly lower (barely) than an LS6/FAST90 intake.
There are so many ways to build a 402 (LS2 block 4" bore)/416 (L92 block 4.065" bore), or 427ci motor (LS7 block 4.125" bore) all with 4" cranks that will all make similar power. The LS7 should make the most power as the heads/intake are the best; however it will come at a $3-4K+ premium. If you don't need dry sump then you probably don't need an LS7 block.
Also look in the conversion/hybrid section as there a number of FOX bodies running around with LS1 power. Dimensionally all the LSx engines they are the same and most of the parts are interchangeable. The LSx production composite truck intakes sit higher... the LS7 intake will sit slightly lower (barely) than an LS6/FAST90 intake.
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Originally Posted by Aliate X
Hey guys right now I have a h/c/i nitrous 302 in my fox body, its fun but of course Im ready for my next setup. Ive always loved the way the LS series motors sound and how much power they make so I figured why the hell not. I was planning on a dart block 427 stroker (windsor type) and its going to be about the same price as an LS7, and honestly Id rather have the LS7.
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Well onto the questions. I know an LS1 is very possible and HAS been done so my main question is, are the LS7's the same width as the LS1's? I figure they are taller, any other differences? And lastly, does anyone know where I could find out any more info about this?, it would be greatly appriciated, I have never been one of those ford vs chevy guys lol, I think an LS motor in a fox is the best of both worlds!
Edit - Also what kinda power do these things make with a cam swap and what are the power limitations of the block/bottom end?
Thanks everyone!
Thread Starter
Teching In
Joined: Oct 2006
Posts: 8
Likes: 0
Originally Posted by cws T/A
in the 1/8th 
edit - ugh deleted the video along with all the others in my download folder...
seen my dads friend 66' vette run 10.45 1/4 on street tires 31 13.5 15's , tires never leave the ground 1.30-36 60ft. 502 N/A crate engine with a dual plane ,850 cfm barry grant carb . Just your avg dual battery streetcar 
Originally Posted by cws T/A
Dont do it .. Thats all we need is Fords owning us with our own stuff . GO GET A 2.3 Four without the turbo... heard those were the bomb every mustang is swappin them in .
.+1 I agree with the Ford guys using our stuff, it just aint right.
TECH Regular
Joined: Nov 2005
Posts: 459
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From: Arlington, TN
It doesn't matter as long at the power plant is bowtie based.
You might want to look at building a motor around the SDPC LS7 shortblock as that will be a wet sump setup and the conversion for your fox body would be much closer to a LS1 style conversion -vs- doing a dry sump setup + LS1 conversion.
Plus the SDPC LS7 shortblock should come out to right around $9,500 for a long block. Which is much cheaper then the LS7 longblock which goes for around $12,000.
Oh and the LS7 has Billet main caps -vs- the ls1/ls2/ls6 style caps. Its nice that this is included in the price of the block -vs- having to add it on later.
What you might want to do is start up a thread in the Hybrid section requesting information on doing a wet sump LSx drop into your model of Fox body.
Hmmm Does anyone make a set of engine mounts for the conversion?
sdpc2000.com will have a list of most of the parts you are going to need.
Now all we need is one of the new Challenger/Chargers to convert to a LS7
Hmmm if you upgrade the SDPC to a Callie's dragon slayer it would be right around 10k....hmmm
You might want to look at building a motor around the SDPC LS7 shortblock as that will be a wet sump setup and the conversion for your fox body would be much closer to a LS1 style conversion -vs- doing a dry sump setup + LS1 conversion.
Plus the SDPC LS7 shortblock should come out to right around $9,500 for a long block. Which is much cheaper then the LS7 longblock which goes for around $12,000.
Oh and the LS7 has Billet main caps -vs- the ls1/ls2/ls6 style caps. Its nice that this is included in the price of the block -vs- having to add it on later.
What you might want to do is start up a thread in the Hybrid section requesting information on doing a wet sump LSx drop into your model of Fox body.
Hmmm Does anyone make a set of engine mounts for the conversion?
sdpc2000.com will have a list of most of the parts you are going to need.
Now all we need is one of the new Challenger/Chargers to convert to a LS7
Hmmm if you upgrade the SDPC to a Callie's dragon slayer it would be right around 10k....hmmm
