LS motor in a C4
#1
Drifting
Thread Starter
LS motor in a C4
Has anyone ever looked in to installing an LS motor (LS6 or 7) in a C4? Whats involved and is there anyone building wiring? Just curious if it's worthwhile.
#2
Race Director
There are several LSx threads. Do a search... From what I've read dropping a LSx engine in a Late model C4 wouldn't be possible because of the CCM. Pre-LT1 C4s didn't have a CCM.
#3
It looks like Corvette Fever magazine and MAM are blowing a bizzilion $ on a threadbare C-4 Project. They are installiing a 5.3 iron block truck engine in it, but that's basically the same genarics as the Aluminum series. I stumbled upon it behind one of the trailers and tents at Funfest last friday a week ago and took these pictures of the engine going in so far. They have removed the body so its bare @ssed naked and you can see everything.
so there you are...pictures are better than imagination
so there you are...pictures are better than imagination
#4
Le Mans Master
#8
Le Mans Master
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http://forums.corvetteforum.com/show....php?t=1203191.
28 pages of debate
'90 onwards (L98) got a CCM.
#9
The CCM can be dealt with. Sure it complicates it a little more, but no reason to let that stop you from doing a LS swap.
Last edited by Mr6spd; 09-30-2007 at 06:56 PM.
#10
Former Vendor
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Hey thanks for posting the pictures of C4orce. That's the first time I have seen the seats. The car left the shop the week before Carlisle with no seats and I haven't seen it since. I hope to have it back with me sometime next week.
As I am sure some of you that have seen the car know, we are spending more money on it than is necessary to get the LSx into a C4. I wasn't going to miss the opportunity to do some dress up work to make it look better. As such, items like using braided hose and fittings for the heater hoses is not necessary. It just looks much better this way to me. I hope others agree. The car is very far from complete even under the hood. We needed to get the car drivable so many temporary parts are on the car. Case in point, the wiring harness for the engine is the modified truck harness that came with the engine. We will be using a completely new one built from scratch for the final assembly. Also that filter will not be sitting on the end of the TB like that.
Back to the original topic. There are many threads on this subject that cover a great deal of the basics and will help answer many questions. Costs are no where near as high as people who have not done this swap will claim. It simply depends on how you go about it. It also greatly depends on what year car you are starting with. The later cars will be harder to deal with due to the different, ie more, computer issues. If you have a ZF, at this time the only solution is replacement. It simply will not fit behind an LSx motor. We are trying to work on a solution. We know what needs to be done. It is simply a matter of can it be done without getting a custom one off piece made. We will let you know if we come up with a solution.
An LSx swap can be done and I believe it's 100% worth it.
As I am sure some of you that have seen the car know, we are spending more money on it than is necessary to get the LSx into a C4. I wasn't going to miss the opportunity to do some dress up work to make it look better. As such, items like using braided hose and fittings for the heater hoses is not necessary. It just looks much better this way to me. I hope others agree. The car is very far from complete even under the hood. We needed to get the car drivable so many temporary parts are on the car. Case in point, the wiring harness for the engine is the modified truck harness that came with the engine. We will be using a completely new one built from scratch for the final assembly. Also that filter will not be sitting on the end of the TB like that.
Back to the original topic. There are many threads on this subject that cover a great deal of the basics and will help answer many questions. Costs are no where near as high as people who have not done this swap will claim. It simply depends on how you go about it. It also greatly depends on what year car you are starting with. The later cars will be harder to deal with due to the different, ie more, computer issues. If you have a ZF, at this time the only solution is replacement. It simply will not fit behind an LSx motor. We are trying to work on a solution. We know what needs to be done. It is simply a matter of can it be done without getting a custom one off piece made. We will let you know if we come up with a solution.
An LSx swap can be done and I believe it's 100% worth it.
#11
Melting Slicks
I was reading a thread from a guy on the Bimmer forums putting one in his 89 3 series. Ironically, putting one in a C4 and in a Bimmer are about the same amount of work if that is any indication.
As a hot rodder, I love the project and give props to those who do it, especially the home grown ones here.
As a hot rodder, I love the project and give props to those who do it, especially the home grown ones here.
#12
Safety Car
So far at the track I've seen them in bimmers (as mentioned above) and RX-7's. My understanding is that the LS1/6 adds a tiny total of ~17 lbs over the original 4 cyl turbo piece and adds gobs of torque and even more reliability.
That said, I would stick with somethng more traditionally "SBC" in a C4. I've rebuilt my LT1 twice, once as a 350 and now as a 383. I've achieved the kind of power and torque curves I wanted (both come on very early and are wide and fat, around 400 rwhp and tq) without sacrificing much in the driveability department.
Motor build costs are comparable, but installation costs and headaches are of course higher with the LS motors. If you're into interesting and challenging projects, then this is a good one, and there is a plethora of experience on this forum to help you with the project. But if you're just looking for some performance I would go in a different direction.
#13
Drifting
Thread Starter
LSx
My idea was to drop an LS6 or 7 in to my 96 if it were doable. I have an LT4 in my GS replica injection and all with a T56 behind it. Very nice combination. It was very simple but wiring was purchased as a drop in. The Lt4 just does no have enough grunt for the heavier car. An LS7 in a GS. Cool!!!!!!!!!!!
#14
Melting Slicks
I gotta say that I would be interested. The driveability of some of the latest LSx motors that are making 500rwhp is simply amazing. My 434 is plenty strong but no way will it pass emissions and its very unhappy in DC traffic.
#15
Safety Car
My idea was to drop an LS6 or 7 in to my 96 if it were doable. I have an LT4 in my GS replica injection and all with a T56 behind it. Very nice combination. It was very simple but wiring was purchased as a drop in. The Lt4 just does no have enough grunt for the heavier car. An LS7 in a GS. Cool!!!!!!!!!!!
#17
Melting Slicks
#19
project CForce
They had a breif seminar in the tent where that car was parked, the dude that spoke said that it would be covered in a on going series on all of the mods and where to get the parts and the budget was to make a driver for $15K including the car.
#20
Former Vendor
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My idea was to drop an LS6 or 7 in to my 96 if it were doable. I have an LT4 in my GS replica injection and all with a T56 behind it. Very nice combination. It was very simple but wiring was purchased as a drop in. The Lt4 just does no have enough grunt for the heavier car. An LS7 in a GS. Cool!!!!!!!!!!!
Have you thought about turbocharging the LT4? That would turn heads and make really nice power.
Also, personally I am not gaga over the LS7. You can build an LS2 for a lot less and make more power than a stock LS7. That could make this swap a lot more justifiable to you.