LSX 454 In C4
Thread Starter
Intermediate
Joined: May 2011
Posts: 40
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Just how difficult would this be? A SBC 427 would be $2500 less...what else would I need over a Gen 1 swap? Just an ECM and diferent headers?
Obviously the intake would be different but the LSX intake is about the same price as a mini ram.
Obviously the intake would be different but the LSX intake is about the same price as a mini ram.
Team Owner
Joined: Oct 2004
Posts: 81,241
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From: altered state
St. Jude Donor '05
That LSX will make more power reliably than a Gen1 sbc ever will you get what you pay for there.
If the dimensions are the same as a sb LSx sure it could be. Guys have stuffed BBC in a C4 dont know why that one couldnt fit also
If the dimensions are the same as a sb LSx sure it could be. Guys have stuffed BBC in a C4 dont know why that one couldnt fit also
Thread Starter
Intermediate
Joined: May 2011
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The LSX 454 is supposed to have the same outer dimensions as any other LS engine, so it will fit.
Just wondering how much more expensive the swap would be over an SBC swap.
Other than beefing up whatever breaks at 600HP, Id also need an LS compatible ECM, accessories, headers.
Anything else I'm overlooking?
It is a wcked cool engine. They build them not more than 10 miles from my home, at the Livonia performane engine facility.
Read quite a bit on the build, very good quality control at the General.
There's a vid on YouTube where they spray an LSX 454 on a dyno. It makes 820 horses but even more impressive is the fact that it revs to about 8200 RPM!
That LSX would make my C4 so fast I'd get kicked off the dragstrip until I got a full cage, lol.
Just wondering how much more expensive the swap would be over an SBC swap.
Other than beefing up whatever breaks at 600HP, Id also need an LS compatible ECM, accessories, headers.
Anything else I'm overlooking?
It is a wcked cool engine. They build them not more than 10 miles from my home, at the Livonia performane engine facility.
Read quite a bit on the build, very good quality control at the General.
There's a vid on YouTube where they spray an LSX 454 on a dyno. It makes 820 horses but even more impressive is the fact that it revs to about 8200 RPM!
That LSX would make my C4 so fast I'd get kicked off the dragstrip until I got a full cage, lol.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Depends if you carb it or not. Fuel delivery gauge functions accessory drives are something to consider.
For the 7-8 you were looking at spending maybe a large CI sbc gen 1 is your ticket. Still cost more with exhaust injectors tuning etc but will be much simpler. No reason you coulnt put the car in the 10s or 11s without trying too hard.
So how much on minimum CC payments could you make every month
Punt
For the 7-8 you were looking at spending maybe a large CI sbc gen 1 is your ticket. Still cost more with exhaust injectors tuning etc but will be much simpler. No reason you coulnt put the car in the 10s or 11s without trying too hard.
So how much on minimum CC payments could you make every month
Punt
Pro
Joined: Mar 2000
Posts: 658
Likes: 7
From: Perth Amboy New Jersey
You really should learn to use google. I have provided a list below from my stock ( I have kept a list of C4 LS conversion) for your reading pleasure. There is plenty of imformation from these post, there are detailed builds and pictures also. I highly suggest that you save these post in a file on a cd rom for future reading. You can put them in a word document or print them as a PDF file.
If you are going for a 454 CI, make sure it makes at least 750 HP. because of the 12 degree heads. The whole motor build / swap will be expensive but do it once correctly and be done. There are ways to get quality engine parts cheaper if you are not getting a crate motor.
Some of there are the same build on different boards, the good point is that more people got a chance to ask different questions.
http://www.ls1tech.com/forums/conver...-corvette.html
http://www.ls1tech.com/forums/conver...ject-pics.html
http://www.ls1tech.com/forums/conver...wap-build.html
http://www.ls1tech.com/forums/conver...orvette-2.html
http://www.digitalcorvettes.com/foru...ad.php?t=62126
http://www.vetteworksonline.com/c4_c...conversion.htm
http://forums.corvetteforum.com/c4-t...ith-4l60e.html
http://forums.corvetteforum.com/c4-t...vail-soon.html
http://forums.corvetteforum.com/c4-z...sx-motors.html
http://forums.corvetteforum.com/c4-t...-early-c4.html
C4 LSx Engine Swap Headers (http://www.melroseheaders.com/)
http://www.corvetteactioncenter.com/...p-build-2.html
http://www.smokinvette.com/corvettef...ad.php?t=33667
http://www.vettaid.com/LSxPackagesKits.aspx (Adapters)
http://www.carcraft.com/techarticles...NTERSTITIAL_15
http://tech.corvettecentral.com/2010...-c4-corvettes/
If you are going for a 454 CI, make sure it makes at least 750 HP. because of the 12 degree heads. The whole motor build / swap will be expensive but do it once correctly and be done. There are ways to get quality engine parts cheaper if you are not getting a crate motor.
Some of there are the same build on different boards, the good point is that more people got a chance to ask different questions.
http://www.ls1tech.com/forums/conver...-corvette.html
http://www.ls1tech.com/forums/conver...ject-pics.html
http://www.ls1tech.com/forums/conver...wap-build.html
http://www.ls1tech.com/forums/conver...orvette-2.html
http://www.digitalcorvettes.com/foru...ad.php?t=62126
http://www.vetteworksonline.com/c4_c...conversion.htm
http://forums.corvetteforum.com/c4-t...ith-4l60e.html
http://forums.corvetteforum.com/c4-t...vail-soon.html
http://forums.corvetteforum.com/c4-z...sx-motors.html
http://forums.corvetteforum.com/c4-t...-early-c4.html
C4 LSx Engine Swap Headers (http://www.melroseheaders.com/)
http://www.corvetteactioncenter.com/...p-build-2.html
http://www.smokinvette.com/corvettef...ad.php?t=33667
http://www.vettaid.com/LSxPackagesKits.aspx (Adapters)
http://www.carcraft.com/techarticles...NTERSTITIAL_15
http://tech.corvettecentral.com/2010...-c4-corvettes/
Thread Starter
Intermediate
Joined: May 2011
Posts: 40
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I'm pretty sure I've read all of the articles you've posted links to.
I wasn't asking if anyone has done an LS swap in a C4, I was asking about the LSX 454 crate engine from GMPP
The LS swap articles made the project sound relatively easy, but the articles I read used a 5.3l truck engine for the swap.
Just trying to find a more specific example. I believe the LSX 454 is a tall deck block , so there could be fitment issues, hood clearance, headers, etc.
I've actually seen that engine up close and personal at the Detroit Autorama and it is just a pinch taller than an LS3 or LS7.
I wasn't asking if anyone has done an LS swap in a C4, I was asking about the LSX 454 crate engine from GMPP
The LS swap articles made the project sound relatively easy, but the articles I read used a 5.3l truck engine for the swap.
Just trying to find a more specific example. I believe the LSX 454 is a tall deck block , so there could be fitment issues, hood clearance, headers, etc.
I've actually seen that engine up close and personal at the Detroit Autorama and it is just a pinch taller than an LS3 or LS7.
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Pro
Joined: Mar 2000
Posts: 658
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From: Perth Amboy New Jersey
I'm pretty sure I've read all of the articles you've posted links to.
I wasn't asking if anyone has done an LS swap in a C4, I was asking about the LSX 454 crate engine from GMPP
The LS swap articles made the project sound relatively easy, but the articles I read used a 5.3l truck engine for the swap.
Just trying to find a more specific example. I believe the LSX 454 is a tall deck block , so there could be fitment issues, hood clearance, headers, etc.
I've actually seen that engine up close and personal at the Detroit Autorama and it is just a pinch taller than an LS3 or LS7.
I wasn't asking if anyone has done an LS swap in a C4, I was asking about the LSX 454 crate engine from GMPP
The LS swap articles made the project sound relatively easy, but the articles I read used a 5.3l truck engine for the swap.
Just trying to find a more specific example. I believe the LSX 454 is a tall deck block , so there could be fitment issues, hood clearance, headers, etc.
I've actually seen that engine up close and personal at the Detroit Autorama and it is just a pinch taller than an LS3 or LS7.
The standard lsx 454 is a short deck.( 9.240 deck height) The lsx454r is a talldeck (9.720 deck height)
Thread Starter
Intermediate
Joined: May 2011
Posts: 40
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The more I think about it, the more I want to put this engine into Alice (my '89 Vette. If yours doesn't have a name you don't really love her).
The other engine I'm considering is a Motown lite 427. The cost for the lsx build would be just a bit more expensive, because of the new accessories, bellhousing, computer, etc.
I dunno, both options have so many selling points.
Decisions, decisions.
The other engine I'm considering is a Motown lite 427. The cost for the lsx build would be just a bit more expensive, because of the new accessories, bellhousing, computer, etc.
I dunno, both options have so many selling points.
Decisions, decisions.
Team Owner
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Le Mans Master
Joined: May 2004
Posts: 5,385
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Johnny, you pull the trigger on this and you will go down in C4 Tech history as having the baddest engine swap ever. All motor, brand new 7.4 liter V8 that's an LS?
DO IT! Do for those of us who can only dream it. What kind of FI intake can feed that monster?
On a side note: this engine makes me wonder why one would cough up 14 grand for a LS7 that is down 100 ponies by comparison.
DO IT! Do for those of us who can only dream it. What kind of FI intake can feed that monster?
On a side note: this engine makes me wonder why one would cough up 14 grand for a LS7 that is down 100 ponies by comparison.
Last edited by 1985 Corvette; Feb 7, 2012 at 08:26 PM.
Suckin' gas, haulin' ass.
Joined: Apr 2010
Posts: 1,100
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From: Newport News Virginia
Johnny, you pull the trigger on this and you will go down in C4 Tech history as having the baddest engine swap ever. All motor, brand new 7.4 liter V8 that's an LS?
DO IT! Do for those of us who can only dream it. What kind of FI intake can feed that monster?
On a side note: this engine makes me wonder why one would cough up 14 grand for a LS7 that is down 100 ponies by comparison.
DO IT! Do for those of us who can only dream it. What kind of FI intake can feed that monster?
On a side note: this engine makes me wonder why one would cough up 14 grand for a LS7 that is down 100 ponies by comparison.
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LMR has a 502 RHS
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