Hey guys I was looking into purchasing this 572 big block engine from Nelson Racing Engines it has 2700 HP and 2100 Lbs of torque on racing gas. My question is would I have to fabricate anything under the hood to make it fit and I have aftermarket front upper and lower control arms front coil over shocks and disc brakes rear upper and lower control arms rear disc brakes and coil over shocks I still have the 7.5 stock rear end but i rebuilt it with 4.56 gears 400 transmission with transbrake. Would I have to do anything else to the chassis to make sure it can handle that power? I'm probably going to run it full furniture with 10 point roll cage. Would appreciate any help thanks guys.

 

You do realise that is a $60,000 + motor and its about a 2 year wait right? Yes everything about the car will have to be changed up.

 

Yea I know the price of it. Just something I thought about getting. And where did you hear it would be a 2 year wait?

 

Bits and pieces of that 7.5 rear will be all over the road without a doubt! like gearhead said EVERYTHING about that car will need to be changed/modified...

 

You're kidding right?

 

I've never had experience with dealing with a engine with that kind of power so I don't really know what changes need to be made. I know changes will need to be made but I dont know what I would have to change besides the rear end and stuff. So take it easy

 

I can only imagine the engine ripping the motor mounts out. This engine wil need a front and mid engine plate along with all kinds of other things.

 

Just google 2-3 year wait is common. If you really have the means to build a $100,000 gbody Cutlass there are better places to go.

 

Well what would you suggest? That was just a thought never said I was going to actually do it. I have the money to build this car anyway I want just need some advice on the best way to go about it that's all

 

As long as you leave stock size radial passenger car tires on it everything will be fine.

 

No need for the smart remarks. Again as I said I know that changes will be made and again since i've never built a car that had a engine with that kind of horsepower I don't know what modifications I would need. That's what I'am asking no need to be ******** about it.

 

The reason people seem to be sarcastic, when they are really trying to help, is that such an engine will require everything be built up around it. The wiring won't fit, everything will have to be found or fabricated from the alternator mount, radiator, on back. The rear end will be challenged just to put the car in the garage. You will spend a great deal of time and money getting the car to support the power level of the engine, and in the end the car won't be worth as much by far as if you started with a Chevelle for that Chevy aftermarket clone engine.

 

I understand that. Well I was thinking about putting a 455 olds in it. That shouldn't be a problem. But the whole 572 thing was just thinking outside the box is all. Didn't realize it was really way outside the box

 

The frame, powertrain, etc would need to be custom fabricated. Just look at a funny car.

 

How about a twin turbo efi'd DX based build? You could make the better part of 1000hp fairly easily at a fraction of the cost of that 572 and have a very very driveable vehicle.
Have you ever been in anything with that much power? I have and it's quite a rush. It might be faster than maybe you imagine.

 

Your probably right about that. Well what kind of mods what I have to do to make that engine that you just mentioned work?

 

THIS is only one reason why you are getting sarcastic responses.

 

OK everyone including myself is beating around the bush. This thread is a joke. You have to walk before you run anyone looking to really build a 2000 HP car is going to know the simple basics of building a car. You want to make your car faster fine. Build a basic car get it down in the 11's and then work your way down. This is real world people in here with real world experience. We are not your buddies you are bragging to that think its cool when you tell them you are going to build a 2000hp car.

 

Who's bragging? All i asked is what mods would have to be done to make it work that's it! Point blank period! If you feel as if I was bragging then maybe your the one with the problem. I stated that I know that a lot of things have to be changed bascially the whole car would have to be built from the ground up to make it work. And I was asking for a good place to start.

 

A good place to start would be either a Pro Stock chassis builder or the classifieds of National Dragster. You'll need a custom built chassis to handle that power, a custom built rear axle, a custom built trans, and a custom built fuel system. Other than that, it's a bolt-in...

 

swartz chassis out of wis I think

 

If you "settle" for a turbo/supercharged DX build in the 800-1000hp range then you'll need far less mods.
But certainly suspension, rear end, and driveshaft mods/changes will need to be done before anything.

I recently tuned a '90 GMC truck with an EFI'd twin turbo 406 SBC. Based on the fuel map he's making right about 1000hp at the crank. He has upgraded suspension, a highly built TH400, and a full roll bar, mainly because he takes it to the track and it's required. However that would be a good idea anyway. Otherwise the vehicle is very stock looking. I've ridden in/tuned other cars almost as powerful but with less equipment. Your call at that point.

Fwiw, I think some of the sarcasm is based on the fact that you want to put a Chevy motor in an Olds. You'll get that reaction everytime.

 

OMG I haven't laughed this hard in a while.
Thank you.

 

Agreed. I didn't realize it would spark such angry feelings. But thanks for the input man. One other question for you. Have you heard of people boring out 307 engines. I mean i know a couple of people that have but it's not real common. Would you get a big gain when boring out a 307? Just trying to figure out the reason for it cause I don't hear about boring out a 307 too much

 

It's not so much cause it's a cheby but more cause it's a ridiculous question. Can you put a $60k monster into a $4k car.

 

Guess it was a crazy question. But I've noticed that people generally view the g body cutlass as a cheap car i mean even though the book value is like 6500 for a fully restored one. IMO it's still a classic shouldn't it get the same respect as the other g bodies and other classic cars? Just want everyone's opinion on that

 

g body, a body, whatever, makes no difference with an engine like that. I take it that this will be strickly track? It sure would not be streetable HP and torque. Cutlassefi would be the one I would talk to about a build that is streetable like he already added. Leno's Toronado only made around 1000 HP.

 

Doing anything with a 307 is a waste of time imo.
Now Dale (gmrocket) entered the EMC a couple years ago with one. He did real well, made upper 400's if I remember right. But ask him how many hours he had in it. Not worth it, he'd probably agree.

Whatever you do, if you're going for a bunch of power, put a good EFI on it, notice I said good EFI. It'll make it drive that much better.

 

OK, I'm going to chime in. You need to learn to walk before learning to run, need to get your feet wet before jumping in to learn to swim, pick the saying that appeals to you most. Any engine approaching that kind of power will need everything fabricated or upgraded. Anybody who has spent any time at the dragstrip has seen somebody who has made serious upgrades to the engine and leave everything behind it stock. Something is going to break, with the kind of power your talking about can easily kill you or people around you. An engine with half that power will run plenty strong.

Forget the 572, look for a 455 or 350DX to build. Build it right, build the rest of the drivetrain to handle it and have fun. Its no fun having a car that you have to work on all the time.

Please note, Im one of the biggest critic of chebby swaps! Save LOTS of money keep your Olds Olds powered!

 

I think switching to a chevy is the same as putting a toyota engine in your oldsmobile! CRAZY just buy a chevy but dont ruin a perfectly good oldsmobile!!! Stick with OLDS POWER PERIOD! JMO.

 

Idk man toyota engine in an olds. I think a supra engine in an omega would be pretty crazy . Thats one inline six with some serious potential.

 

Blasphemy!!! haha!!! Well nascar has yoto toys and so does NHRA them yototoys are everywhere!! almost as bad as them Chebbys!!

 

Sounds streetable .......Thats pro stock power and then some......

 

Any jackass can build a Chevy motor...look at the drivers... Fo reals, ya got yoself an Oldsmobile...keep in an Oldsmobile. I know someone with a 355 already built for $4k...plus a transmission and converter, the whole swap for less than $6k and it'll be a fun, streetable, fast car to drive...you can even keep the 7.5...er....nah I'd swap that out...

 

LOL thanks for all the advice guys. I mean I have the 403 in my 81 the 307 in my 86 and the 350 in my 83 is a good wrench engine so not sure if that would be considered a chevy engine. Either way that one is coming out. Need some info on a 307 to 455 olds swap

 

There are plenty of threads on here to go from a 307 to any engine in your car. Just do a search.