I'm in the planning stages of an LS1/6-speed swap for my '71 Chevelle. Can anyone direct me to some buildup stories that cover this swap into a Chevelle? The only one I've run across is on Street and Performance's website, but last time I tried, only about the first half of the buildup was there.

Here's my car as it is right now (note that the email address and homepage given on here aren't functional anymore).
http://www.pro-touring.com/featured_cars/Chevelle/Galen_Love_71_Chevelle/galen_love_71_chevelle.htm

Thanks,
Galen

You may want to check out www.ls1tech.com in the conversions and hybrids section just do a search and you should find all kinds of information. Also, Hotrod magazine did an LS6 swap in a 67 chevelle that has some good information you can find that article on their website. Hope this helps.

Im doing a LS1 twin turbo / T56 in a 71 Chevelle! Scotty Has a 71 w/ Twin turbo LS1 w/TH400.

If you have any questions let us know!

I am in the middle of my 71' LS1 / T56 build now. Using a 99' LS1 with BRP type of mounts, was able to use all of the accessories (with the exception of having to notch the frame for the A/C compressor). Swapping in a 95' Impala Gas tank with the Racetronix pump/wiring kit. Had to cut the sheet metal for the Trans Tunnel due the size. Would not have to with Auto trans. Building more for a daily weekend driver. I did used LS1Tech.com a lot for swap info.

What was involved in putting the 95 Impala gas tank into the Chevelle? Is it a pretty straight foward swap?

ToTheTop

Anyone else ever used a late-model B-body tank in a 68-72 A-body?

I know the G-body tanks are small enough to fit, but the filler neck is off-center for some reason.

It would be nice if the Bbody 22+ gallon EFI tanks would fit with minimal effort into these old classics. Would make the swap to EFI cheaper. The only problem is that I haven't found anyone that sells replacement B-body tanks and I think the fuel lines on the Bbody tank are meant to run up the driver's side?

Hmm you may be onto something there do you have any pictures of a B-body tank?

I can't find a pic of a 94-96 tank, or a good pic of the older TBI-era tanks for EFI cars, but here's a link to a pic of a late-80's Bbody tank for carb'd cars.

http://images.andale.com/f2/121/116/1735586/1026493642950_GM411A.jpg

That looks like it might fit and would be easier to adapt an in tank pump to. Still now easy solution however.

Well the 87-up steel tanks are available new, and the ones for EFI applications are already set up for in tank pumps and are baffled, etc. You'd just need to find a pump that would feed the particular engine you're running.

If the 94-95 plastic (I think all three years are plastic, anyway) tanks can be made to with little effort, that would be good in so many ways. The tanks are all meant for EFI engines, they are baffled and their are MANY aftermarket drop-in pumps that will power anything up to the meanest of engines.

I think I might go pull a tank from a junked car to see what can be done, if I can afford one.....

Let us know how it turns out! Im very interested as well!

I never compared tanks to see if they're the same, but I know the '91-93 TBI cars had plastic tanks that are about 1/4" too wide to fit between the frame, and with a little bit of grinding on the frame it would probably work. These also had a lower-pressure pump compared to the LT1 cars.

'94-96 tanks MIGHT be different (since they had dual-exhaust) but the one in my '95 is damaged from the crash, and I wanted the factory looking tank, so I bought a repro '69 tank and am installing a "Tanks Inc." pump.

If anyone wants a '91-93 caprice tank, I've got 2 of them you can have for free, just get them out of my way - must pick up, I don't want to hassel with shipping.

Hope this link works,
www.chevyhiperformance.com/featuredvehicles/148_0411_chev/index.html
Go to the second page which is hard to find. It's in the last line of text below the photo of the trunk. Article says Dan used Impala tank.
I have the mag. with this article, interesting.

I am working on a simular swap in my 67 Malibu.

You may be able to contact John Sonnefeldt at Detroit Locker. He has a 71 Chevelle with a LS2. It was just recently on the cover of Super Chevy.
Here is another story on the car. http://v8tv.truckworld.com/tenarticle.asp?aid=2340&sid=96

Concerning the '94-'96 Impala SS tank, do you guys want some measurements? I had a '94 Impala SS, but my brother still has his '96 Impala SS. I could have him crawl under and measurement the width and front/rear length. Would that be of any help?

I have the B-body '91-'96 parts book on CD at home. If anyone needs part numbers for the tank, fuel pump, or any other part from a B-body of that year, let me know. It's got to be the best resource ever (at least when I had my Impala it was).

It'd be nice to know if the tank did fit. I'd snatch one up before GM decides to discontinue it.

I have the B-body '91-'96 parts book on CD at home. If anyone needs part numbers for the tank, fuel pump, or any other part from a B-body of that year, let me know. It's got to be the best resource ever (at least when I had my Impala it was).Can you look on there to see if the (91-93) TBI tanks are the same as the (94-96) MPFI tanks? I know the fuel pumps are different, but the tanks may be the same... like I said, I've got 2 of those TBI tanks sitting by the shop taking up space.

You may already know, the B body tanks have a "hump" on top where
the sending unit bolts up.The hump and lines need to go up into the trunk
about 2 1/2 in. Thats why theres a hole in my trunk floor.

I dont know about the 68 up frame width but 67 frames are about 1 1/2 in.
to narrow for the tank. I trimed about 3/4 in. off the lower frame flange on
each side. I have some 70-72 cars I will try to measure the frame on one
to see if that would be necessary on them.

http://www.chevelles.com/showroom/data/500/tank11.jpg

http://www.chevelles.com/showroom/data/500/tank1.jpg

Some more on the b-body tanks:
http://www.ls1tech.com/forums/showthread.php?t=439087&highlight=impala+tank

Don't the B body tanks fill from the side rather than from the rear as in a A body?

LK

My parent's 96 Impala SS is filled from behind the rear tag.

Can you look on there to see if the (91-93) TBI tanks are the same as the (94-96) MPFI tanks? I know the fuel pumps are different, but the tanks may be the same... like I said, I've got 2 of those TBI tanks sitting by the shop taking up space.

I dropped the ball on this. Sorry Derek. I did some quick research on the internet (I'm not at home and don't have the parts CD with me). Looks like there used to be three different fuel tank part numbers. Now GM has consolidated them into only one part #. That part # is 10257314 and covers 91-96 models. List price is $552 or so. Hopefully I'll remember to look at the parts CD when I get back home.

Al

Looks like there used to be three different fuel tank part numbers. Now GM has consolidated them into only one part #. That part # is 10257314 and covers 91-96 models. List price is $552 or so. Hopefully I'll remember to look at the parts CD when I get back home.Does that include wagons? That would explain 2 of the 3 different tanks, since they are completely different than a sedan tank, and the 94-96 wagon tanks were changed because the 91-93s wouldn't clear the dual exhaust. That would make all sedan tanks the same if this is true :)

Don't the B body tanks fill from the side rather than from the rear as in a A body?Sedans fill from the rear, wagons fill from the side.

I'll try to post some pics compairing the B-body tank and my orig. 67 tank.
These are quick and not very good, but maybe they will help someone.

The only thing I am really concerned about is the depth or thickness of the
tanks. I have made the modifications to try and use the B-tank, but
everything is torn apart preping for paint. When I had the tank on the body
I didn't have the bumper on so I really dont know how it will look,
and it will be a while before it's back together.
http://www.chevelles.com/showroom/data/500/b-tank_001.jpg
http://www.chevelles.com/showroom/data/500/b-tank_003.jpg
http://www.chevelles.com/showroom/data/500/b-tank_004.jpg
http://www.chevelles.com/showroom/data/500/b-tank_005.jpg

Sorry for not following up on this thread.. don't know if anyone is still following, but I have pictures of the 95 Impala tank mounted in my 71 Chevelle. but I have not figure out how to add picture.. here is a url of my Yahoo photos for some picture of my project. i can email more on the Impala tank details if you want.

http://pg.photos.yahoo.com/ph/bw_fong/album?.dir=/7ed1&.src=ph&.tok=phlDC1EBaxUosMlM

[QUOTE=bczee]Sorry for not following up on this thread.. don't know if anyone is still following, but I have pictures of the 95 Impala tank mounted in my 71 Chevelle. but I have not figure out how to add picture.. i can email some to you on the Impala tank details if you want.

I picked up my tank for $50 and using a Racetronix B-Body kit that uses a Walbro 255lh pump and wiring kit. I used the 99' Corvette Filter/Regulator (AC/Delco GF822)

I used Russell Quick Disconnect adapters for the feel and return line. I have 3/8" SS feel line to the front.

Used 1/8" x 1" straps to mount.

I cut the truck floor for the sender on the tank and build a access cover.

Did you have to modify the frame in your 71 as shown above on the 64-67 frame to fit the tank?

Thanks,

This would definitely make my LT1 swap go a lot smoother :D

Joe

i just am curious about the a/c bracket i hear about to move compressor up top on a ls1. i do not wanna notch a frsh powder coated frame!!! anyone wanna give me a list on things they had to get besides mounts and the engine and trans?


Brandon

i just am curious about the a/c bracket i hear about to move compressor up top on a ls1. i do not wanna notch a frsh powder coated frame!!! anyone wanna give me a list on things they had to get besides mounts and the engine and trans?


Brandon

http://www.ls1tech.com/forums/showthread.php?t=477726&highlight=bracket

If you search the conversions section of ls1tech for bracket in the title only a few good topics come up.

i just am curious about the a/c bracket i hear about to move compressor up top on a ls1. i do not wanna notch a frsh powder coated frame!!! anyone wanna give me a list on things they had to get besides mounts and the engine and trans?


Brandon

I had Street & Performance make me a front drive kit that let me mount the AC on the bottom pass.(without having to notch the frame) I coundnt mount the AC and Alt. high like the one on the 70 they did because of my turbos. I also used thier engine mounts.
I had Canton make me a 6.5qt. oil pan with a remote filter. I wanted this because the turbos as well. With the oil cooler I shoud have a 8qt. system.

Do you guys know if the same 94-96 Impala fuel tank would fit in a 72 El Camino? I don't know if the frames are the same as the hardtop. Any help is appreciated.
2 other issues I have is which oil pan to use, the camaro, truck pan or an aftermaket? I'd rather not notch the crossmember and am planning on using Year Ones LS1 Swap kit part #BG994 http://www.yearone.com/serverfiles/fbshopmain2.asp?cat=0
And can I easily convert to cable throttle from the electronic fly by wire?
My current donor engine is a 98 corvette LS1 and a camaro SS T-56 6 speed.
Huge thanks for info.
Lee

We have a much better solution than the S&P bracket.

Here is the all new ATS Sidewinder Accessory drive for the LSX engine. It includes every part from the face of the block forward to allow for compact mounting of all the accessories into a muscle car. This will include all the brackets made from 6061-T6 aluminum, all pulleys, the water pump, Alt, P/S pump, ATI balancer, A/C compressor, all hardware, tensioner and belt.

http://img369.imageshack.us/img369/1292/valve2ax3.th.jpg (http://img369.imageshack.us/my.php?image=valve2ax3.jpg)

Tyler

We have a much better solution than the S&P bracket.

Here is the all new ATS Sidewinder Accessory drive for the LSX engine. It includes every part from the face of the block forward to allow for compact mounting of all the accessories into a muscle car. This will include all the brackets made from 6061-T6 aluminum, all pulleys, the water pump, Alt, P/S pump, ATI balancer, A/C compressor, all hardware, tensioner and belt.

http://img369.imageshack.us/img369/1292/valve2ax3.th.jpg (http://img369.imageshack.us/my.php?image=valve2ax3.jpg)

Tyler

That is one sweet setup! Your going to make me want to pull the 454 and go with an LS1....all that power potential and now a compact one stop setup to mount all the acces.

We have a much better solution than the S&P bracket.

Here is the all new ATS Sidewinder Accessory drive for the LSX engine. It includes every part from the face of the block forward to allow for compact mounting of all the accessories into a muscle car. This will include all the brackets made from 6061-T6 aluminum, all pulleys, the water pump, Alt, P/S pump, ATI balancer, A/C compressor, all hardware, tensioner and belt.

http://img369.imageshack.us/img369/1292/valve2ax3.th.jpg (http://img369.imageshack.us/my.php?image=valve2ax3.jpg)

Tyler


Any pricing available for this kit as of 11/13/06?

I've been researching this for what seems like forever now. There are little tidbits spread all over the internet. There is not just one location where ALL of the information is at. I think it would be helpful to us guys thinking about or doing the swap to have a parts list, tips, procedures, and any related information created by the people who have done this already. Look at this link...

http://www.ls1tech.com/forums/showthread.php?t=472609

This link is one off of LS1tech for swapping an LSX into a 67-69 Camaro. It is very thorough. If we could have a link like this for Chevelle guys this would be enormously helpful.

Thank you,
Kevin

There are different things that won't be exactly the same across the board. I am in the process of doing the swap in my '71. Some of the things to consider: A/C yes or no? Mounting of the compressor becomes a consideration as well as clearance near the firewall suitcase. LT headers? Might have to move the brake distribution block off the frame rail. Engine mounts BRP/S&P or others, Might have to notch the oil pan. I have answered most of these questions for my swap or have a good solution. I have 98% of the parts I need and am getting very close to reassembly. This swap kind of turned into a body off restoration. I am hoping to be running in a couple months.

If any one has questions shoot. I need to rehost the pictures in my LS1tech thread, because the server I store them on is having major problems, hopefully I will get that done soon and it can be used as a reference.

EDIT: My site is back up and I have quite a few pics of my progress. Follow the link in my sig.

Stealth 71-

I wasn't thinking an across the line type information. I was thinking a write up similar to the post on LS1 tech.com that I linked to in an earlier post, but for Chevelles instead. The guys who have already done the swap into Chevelles have some valuable information that would be great to have in one location. This posting has been viewed 1900 times and counting so there seems to be a lot of interest in this topic. All of the information is out there spread all over the internet and its not in one convenient location. I'm sure you guys remember when you started the swap would have wanted some insider information to help you out.

Thank you,
Kevin C

http://www.hotrodlane.cc/

We have a much better solution than the S&P bracket.

Here is the all new ATS Sidewinder Accessory drive for the LSX engine. It includes every part from the face of the block forward to allow for compact mounting of all the accessories into a muscle car. This will include all the brackets made from 6061-T6 aluminum, all pulleys, the water pump, Alt, P/S pump, ATI balancer, A/C compressor, all hardware, tensioner and belt.

http://img369.imageshack.us/img369/1292/valve2ax3.th.jpg (http://img369.imageshack.us/my.php?image=valve2ax3.jpg)

Tyler

Heres my S&P set up. I dont think it looks too bad...

http://i142.photobucket.com/albums/r119/TT402LS1/Chevelle056.jpg

Now that is a bad-ass looking setup :thumbsup:.

Im gonna resurrect this thread because it was pretty helpful but I still had a few questions. What is the cost/part number of the S&P accessory kit that wont require notching. Does it eliminate notching with all motor mounts? Has anyone ran the A-Body Hooker LS1 headers with anything other than Hooker mounts? Are there any mounts that will let you use Hooker Headers and the Fbody oil pan? Is there a better fitting pan, Ive heard the CTS-V pan might fit better? What are people doing for crossmembers with the T56? I read something about modding the stocker, which would help save a bunch of $ over a replacement like the YearOne, and still gave around 3*.

Im gonna resurrect this thread because it was pretty helpful but I still had a few questions. What is the cost/part number of the S&P accessory kit that wont require notching. Does it eliminate notching with all motor mounts? Has anyone ran the A-Body Hooker LS1 headers with anything other than Hooker mounts? Are there any mounts that will let you use Hooker Headers and the Fbody oil pan? Is there a better fitting pan, Ive heard the CTS-V pan might fit better? What are people doing for crossmembers with the T56? I read something about modding the stocker, which would help save a bunch of $ over a replacement like the YearOne, and still gave around 3*.

Sorry, been busy lately. The S&P kit I run is custom made. It is their "hot rod" style kit. They had to make a new PS pump bracket so it cleared the gear box. My kit included a Corvette WP with a Camaro Balancer. Everything is ran off one belt. I used their engines mount brackets and PST poly mounts.

As far as the crossmember, I followed the instuctions on the S&P website.

Ron

Ok, this is a list of things I have gathered and would like to know if I would need anything else. I'm trying to get a rough estimate before I start to do anything out of this world. I have a 71 Chevelle and I would really like to put a ls1 in it. So here it goes:

BRP ls1 swap kit, includes motor and trans mounts, frame brackets, and trans crossmember. This will allow the camaro oil pan to fit so I wouldnt need that, and I would need to modify the xmember for the a/c compressor

Hooker Headers

95 Impala gas tank, Racetronix kit, includes Walbro 255 lph pump and wiring kit, they also used a 99 Corvette filter regulator. Need to cut the trunk

Have the Harness reworked from speartech to become a standalone

Also have driveshaft work done, and yoke installed, going from a th400 to the auto, 4l60e I believe.

Also, would I need a better flowing fuel pump like the 255 lph or would a stock unit from the 95 impala be fine for a stock ls1? Of course there will be small things, but did I miss anything major?

Here is a link for what appears to be a well built rear sump pan for LS1-LS6 engines for $369

http://carshop.carshopinc.com/product_info.php/products_id/81168/LS1PAN

Interesting I would be interested to know what capacity it has and what provisions it has as far as baffling. I am still waiting for milodon to release their pan it should be pretty awesome.

I am running the Hooker headers w/ BRP style mounts I made at home. I did not hav e to cut the stock F-body oil pan at all, but I did move the motor mounts back and re drilled the crossmember. I cut the stock Th350 trans crossmember, flipped the tab and rewelded it. My passenger side heade is ~3/4" from the firewall.