Conversions & Swaps LSX Engines in Non-LSX Vehicles
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1967 Camaro with Carb'd 5.3L LM7 + T56

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Old 06-30-2009, 01:54 AM
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Default 1967 Camaro with Carb'd 5.3L LM7 + T56

This is going to be my build log for my conversion. I'm putting a 5.3L LM7 from a '05 Suburban and a T56 from a '05 GTO in my '67 Camaro. The car was mostly original with a 250 ci inline-6 and a 3-speed saginaw when I inherited it about 2 years ago. I've already added a full Hotchkis suspension, front disc brake conversion, and I rebuilt the stock 10 bolt with a posi and 3.73s. Its best in its current set up is 17.7 @ 77mph, hoping to improve on that a bit The 5.3L will have a carburetor and LS6 cam and springs. The plan is to have the car ready to take to the Las Vegas Invasion in September.

As far as the swap goes, I have most of the major parts already and I took it to my friend's shop last week. We should be pulling the engine and trans towards the end of this week. I'll keep this thread updated with progress pics. Any questions, just ask!

The car




The progression of the motor














Edelbrock swap plates with Energy Suspension mounts


F-body water pump and alternator, no power steering or air conditioning






T56


Bellhousing and half of my collection of exhaust manifolds (I have early and late F-body, GTO, Corvette, and truck, going to see what I can get to fit)


Pulled up the carpet to get to the trans tunnel



Hopefully with the next installment of pictures, I'll have an empty engine bay .

Last edited by DGGM WX3; 06-30-2009 at 02:24 AM.
Old 06-30-2009, 06:40 PM
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congrats man i am in the middle of a ground up resto with lq9, i know your excitement is building
Old 06-30-2009, 07:16 PM
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Nice looking car. If I were you, I'd seriously consider going with a little bigger cam than the LS6. A 224/224 cam would definitely make it more fun.
Old 06-30-2009, 08:25 PM
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Love seeing a rustfree first gen. Wish my 67 had been rustfree. It would have been on the road long time ago if it had been. I was going to go LS1 with auto, but a fully forged all new LT1 nearly fell in my lap, free, so I couldn`t pass that up. Look forward to seeing more of your build. I agree with the last post, go with a bigger cam. You`ll be glad you did.
Old 06-30-2009, 08:29 PM
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That's going to be awesome good luck with the build
Old 06-30-2009, 10:19 PM
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Cool Camaro, I actually really like the "grandma" pale yellow and the Iroc rims, could be a great sleeper!

Is the front bumper mounted upside down?
Old 07-01-2009, 01:32 AM
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Originally Posted by frojoe
Cool Camaro, I actually really like the "grandma" pale yellow and the Iroc rims, could be a great sleeper!

Is the front bumper mounted upside down?
I'm sure it's going to surprise a lot of people I actually thought the butternut yellow/gold interior was pretty hideous when I first got it, but it's really grown on me. It's such a strange combination, I have to keep it those colors.

It's not. I'm just pretty sure it was jacked in the middle at some point in its life.

As far as a bigger cam, I'm trying to do this somewhat on the cheap, and I got a great deal on the LS6 cam and springs. In a couple years, I'll probably stick a real cam in it.
Old 07-01-2009, 11:22 AM
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Nice project man, good luck. Are you guys putting and LS in the Impala in the background?

-SS
Old 07-01-2009, 12:09 PM
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That looks like a great project. The Camaro is really solid!
Old 07-01-2009, 01:11 PM
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Not to beat a dead horse but try to find another cam. It would be fine if it was injected but carbs dont like cams with 117 lsa. Ask me how I know.
Old 07-01-2009, 01:19 PM
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check out my carbed t56 69 camaro build. it may help

http://www.pro-touring.com/forum/showthread.php?t=37078
Old 07-01-2009, 02:03 PM
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Old 07-02-2009, 01:27 AM
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Originally Posted by hotrodscrap
Nice project man, good luck. Are you guys putting an LS in the Impala in the background?

-SS
Nah, it just needed repair work

Originally Posted by topher455
Not to beat a dead horse but try to find another cam. It would be fine if it was injected but carbs dont like cams with 117 lsa. Ask me how I know.
I was wondering how that wide LSA would be with the carb. How bad is it?
Old 07-02-2009, 07:42 AM
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Accel pump tuning is a bitch and also cruise a/f is tough to dial in without runing fat on the primaries. Most carbed motors run a 112-108 lsa as a rule. My custom cam is 111 on my 6.0 HTH Chris Love the car BTW
Old 07-02-2009, 12:16 PM
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Originally Posted by topher455
Accel pump tuning is a bitch and also cruise a/f is tough to dial in without runing fat on the primaries. Most carbed motors run a 112-108 lsa as a rule. My custom cam is 111 on my 6.0 HTH Chris Love the car BTW
Would I even be able to get by with the LS6 cam for a while or would the drivability just be terrible?
Old 07-02-2009, 12:22 PM
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My LS2 cam is essentially an LS6 cam. Drivability isn't that bad, even with a slightly mistuned carb.

Some carbs seem to do better than others.
Old 07-02-2009, 12:29 PM
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Looks like a fun project. Always wanted a 1st gen.
Old 07-02-2009, 01:36 PM
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Originally Posted by DGGM WX3
...I have to keep it those colors.
YES

For some reason the Chevy orange in the engine bay works with the butternut...

Originally Posted by DGGM WX3

It's not. I'm just pretty sure it was jacked in the middle at some point in its life.
That was my other guess, just forgot to write it.
Old 07-05-2009, 01:52 AM
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So we pulled the engine and transmission yesterday. Pulled the trans first and then the engine and bellhousing separately. Came out fairly easily. I also powerwashed the underside of the car, and finished getting the 5.3 ready to drop in. Here are the pics.

Transmission is out, getting ready to pull the engine


So much room


The old


Both engines together


The modified F-body oil pan. A 1/4" thick piece of aluminum was bent 90* and then welded in place.


The modified pick up tube, I had to extend both the tube and the mounting tab


Far cleaner than it was before


Just a little surface rust



Hoping to drop the new engine in on Monday or Tuesday, updates when it happens...
Old 07-05-2009, 05:06 AM
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Originally Posted by topher455
Accel pump tuning is a bitch and also cruise a/f is tough to dial in without runing fat on the primaries. Most carbed motors run a 112-108 lsa as a rule. My custom cam is 111 on my 6.0 HTH Chris Love the car BTW
I no nothing about cams,,can you recommend one for my 5.3 that is going in my 85 Turbo T..please keep in mind that eventually it will be ablow thru carb turbo motor... thanks for any help...looking for good street manners


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