SBC SWAP IN A 64 BARRACUDA?

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Looking to graft a 64 Barracuda to a 68 corvette frame 1st, then install a 350 SBC and M21 4 speed.
It's a FI unit, roller, 450+ HP.
Will the 8.75/3.55 rear hold up with 15×29" drag radials?
Has anyone attempted a swap like this?

What ??

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Chevy merged with a Plymouth ?

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Really ??

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Doing this in Cuba might make sense since the parts supply is so limited but here in America ??

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If you follow through with this, expect THESE kinds of reactions any time someone sees that car.....

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Qualify the use of the car. I am thinking the 15x29 DR's will hold up fine on the street and do okay until you dead hook it. The M21 is likely to break before the 8.75 diff.






What part of Oregon are you from? I thought the people down here were on some good **** but you guys obviously have them beat lol. Hopefully you have mad fab skills and a whole lot of imagination! Big project!
Hi, I'm from Southern Oregon...my 1st serious build was in 1980 and I havent stopped. Lol probably should have before now but no, I've still got dreams of a 7 second street monster and joining drag week...the Barracuda is for my wife, she's finally figured out that its better to just join the fun and spend some time with the old man.
I've got another build going for myself after I get hers done, it's a BBC with an 8-71and Brodix BB3X heads, Jessel shaft rockers, etc...just got done with the 3 year build and off the dyno at 871 HP with 4 lbs of boost. Gonna switch to E85 and turn it up to abot 10 PSI. It's going in my 69 vette. Should be 1000+ at that point. 3 more years though. Yeah, here in the valley we have some serious hot rodders.
Where you at and workin on?
 
What ??

View attachment 1715837854

Chevy merged with a Plymouth ?

View attachment 1715837855

Really ??

View attachment 1715837856

Doing this in Cuba might make sense since the parts supply is so limited but here in America ??

View attachment 1715837857

If you follow through with this, expect THESE kinds of reactions any time someone sees that car.....

View attachment 1715837859

View attachment 1715837860

View attachment 1715837861
Hahahaha...GREAT POST. Thanks, I love it! But really, SBC's swap into anything and behave accordingly. Besides, it's all I have. I'd love to put in a small desoto hemi or even a 273 but it's not cost effective. I can't find a 273 and 4 speed for a resonable price. Better to use what I have and can work with.
 
Me too. What carrier is he planning on using for his powerful small block Chevy? Kink of a slap in the face asking about whether a 8 3/4 could hold up to that kind of horsepower. If the OP has a question whether it will hold up why not use a 12 bolt or a 9". Apparently the Mopar drive train isn't heavy built enough for a 350. WTF. I'm out.

Well, lemme rephrase the question

450 HP and a 4 speed...did ma mopar equip those vehicles with an 8.75 axle?

(Let's say a 440 or hemi, that's gotta be close to 450 hp)

Did she or did those come with Dana's?



Now it becomes a valid question
 
Hahahaha...GREAT POST. Thanks, I love it! But really, SBC's swap into anything and behave accordingly. Besides, it's all I have. I'd love to put in a small desoto hemi or even a 273 but it's not cost effective. I can't find a 273 and 4 speed for a resonable price. Better to use what I have and can work with.

You can't find a small block Mopar and a 904 automatic to just bolt in? They are not a SBC, you don't have to replace everything to make them run and be reliable. There are millions of Chevrolets out there in need of a motor, and millions of Mopar motors in need of a car. Not sure what is a reasonable price when you are talking about clugeing a Vette and a Cuda together. It does not add up.
 
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I've heard many viewpoints, most of them helpful. I'm no longer interested in attempting the Chevy swap although it would have been alot easier than most of you think... I understand now I should build a 9" if I beat on it with 5500 RPM launches off the transbrake.
Like I said in my original post I was "looking to..." I hadn't made up my mind at all. Sure got a few riled up though.
If I can get the title debacle figured out, it'll be my wife's daily driver dream car. If not, well, it'll be another Dragster for the old man. Either way, it's gonna be a fun build. I'll post a pic when I can. Thanks to all for the entertainment. Anyone wanna buy a 68' vette?? Hahaha kidding...
 
...the Barracuda is for my wife, she's finally figured out that its better to just join the fun and spend some time with the old man. I've got another build going for myself after I get hers done...

What does your wife want. Listen to her, it might be very different than what you or I would want.
 
Hahahaha...GREAT POST. Thanks, I love it! But really, SBC's swap into anything and behave accordingly. Besides, it's all I have...

SBC is a junk engine and decreases the value of anything you put it in, if you could sell it at all. I won't get started on why. I know a guy that pulled all his SBC out of everything, mostly Chevies, he had and replaced them all with early Hemis, some blown. No special parts except the blower stuff. None are trailer queens, he drives them all over the country.
 
Do whatever the hell you want. Dont give a damn about what others think.
See my upcoming post on using two alternators.
 
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Why not just connect the frame rails on the barracuda and call it a full framed car. Cheap easy and no hacking up a nice early Mopar. Frame stiffening is not that difficult, what your proposing is.
 
Will an 8-3/4 live? Maybe. I broke one at the drag strip behind a four speed with around 400HP. Depends on how you launch and if the center section is one of the good ones. A Dana or aftermarket 9" would take any abuse you can dish out.
 
The center section is tough enough but I twisted axles into on two separate occasions with a Duster I had with 340 and 4 speed running 9" cheater slicks.
 
I had a bad idea once....then thought more about it! And said "NAW!" LOl:poke::poke::poke:

I love the idea of hotroding but as you found put, most Mopar guys are mostly into Mopar on Mopar!
These guys let you off easy!! LOL
 
Fixed! I am more brand specific. Not totally OEM, restore down to the last nut and bolt but brand specific. A Ford Coupe should have a Ford mill. A 33 Dodge needs a Mopar engine whether it be a Gen 1 Hemi or a Poly (that would be cool), a 340 6 pack or a 426 wedge. Not a Chevy.
I understand why people put Chevy zipper engines in the old iron when building a street rod. With the oil pump and sump at the rear, they clear the crossmember easier. Years ago the parts commonality of Chevies made building the engines less expensive. Chevy bell housings shared the same bolt pattern, so transmission selection was not as difficult.
The older Ford engines changed bellhousing patterns between engine series, small block and Windsor intakes do not interchange because of width. The FE engines had quite the selection of heads with the affiliated intake manifolds. Not all heads fit the smaller bore blocks. This made building a Ford more expensive until the 5.0 came out.
I believe Mopar has a similar issue.
I also understand the put a Ford in a Ford and a Mopar in a Mopar.
A friend calls a project like this Corvette chasss under a Barracuda, building a transvestite.
I did room with a guy that had a Superbee that the previous owner installed a Hemi in. They also installed a Corvette IRS with 3.08 gears and disc brakes. The front brakes still had drums. With the tall gear the highway fuel mileage was good. This I can understand, especially if the front brakes had been upgraded also.
 
Wow a lot of you guys are really closed minded. Why do you care what he does to his car? I’ll tell you this, the last thing I ever care about is whether or not some *** hat at a car show will talk to me about my car. After all I didn’t build it for him.
Will it be better with a corvette frame, engine, trans? Who cares?
OP the 8-3/4 will live behind it just fine on drag radials. Up to the point of launching the car on a transbrake at 5000 rpm with 450hp. Foot brake and mild launches you’ll likely be just fine.
as long as the steering and brakes function. Resale may not be very good.
 
He should just stuff a welded spider gear, 4.56 corporate 14 bolt GM 3/4 ton truck axle under that *****. He gonna need it with that 30 over 350 with double hump heads, three quarters race cam, pushing 700 horse.
Are you saying a zipper engine has more ballz than an equivalent 340. I would go with the 340 in that fish any day.
 
What ??

View attachment 1715837854

Chevy merged with a Plymouth ?

View attachment 1715837855

Really ??

View attachment 1715837856

Doing this in Cuba might make sense since the parts supply is so limited but here in America ??

View attachment 1715837857

If you follow through with this, expect THESE kinds of reactions any time someone sees that car.....

View attachment 1715837859

View attachment 1715837860

View attachment 1715837861
In Cuba, good chance they get a JDM diesel and swap that in.
 
Hi, I'm from Southern Oregon...my 1st serious build was in 1980 and I havent stopped. Lol probably should have before now but no, I've still got dreams of a 7 second street monster and joining drag week...the Barracuda is for my wife, she's finally figured out that its better to just join the fun and spend some time with the old man.
I've got another build going for myself after I get hers done, it's a BBC with an 8-71and Brodix BB3X heads, Jessel shaft rockers, etc...just got done with the 3 year build and off the dyno at 871 HP with 4 lbs of boost. Gonna switch to E85 and turn it up to abot 10 PSI. It's going in my 69 vette. Should be 1000+ at that point. 3 more years though. Yeah, here in the valley we have some serious hot rodders.
Where you at and workin on?
pictures my friend....or it didnt happen
 
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