454....will if fit???

[Magmotor]

I have a Chevy big block 7.4 L V8 454 4BBL in my 33' Holiday Rambler RV w/22k miles on it and runs beautifully. Will it fit in a 63-67 vette or 84-89 ??? I know absolutley nothing else about it except I think it's the 4 main with big cam becasue of the RV. As it sits now I think it's rated at 425 hp. Sure would look nice in my vette. Thanks for any information...

 

[JT ZR-Won]

It'll fit..........with a heck of a lot of modification (to the 84-89). I've got a Corvette Fever article laying around somewhere on an '86 that was fitted with a big block and it was awesome. I'd sure love to have one done. Imagine the sound of that

Jay

 

[Fishman]

Put a BB 402 (396 bored .030) in a Pontiac T/A in the 80's. The main issues (all overcome with a saw, blow-torch, or $):
- Motor mounts, bought some from an older Camaro... then welded in place (didn't feel up to drillin' the frame). Since the completed engine was pretty heavy, I found a friend with a stripped down BB and used that to line up the mounts and the frame.
- Tranny, upgraded to a turbo 400.
- Drive shaft, sent it out to be shortened and balanced.
- Electronics, kept hooking up wires until it turned over.

Only took two years of my time and all my money. Well worth it though. GOOD LUCK!

 

[Magmotor]

OK guys thanks..!!! I'm not quite at that "gonna do it stage yet" but just dreaming I guess. Would be quite a project but look at the outcome.....scheechs...what a car to have.

JT ZR wouldn't mind seeing that article...I imagen you'd have to just trash the computer in an 84-89 but hey, wouldn't hesitate on that.....:L

Fishman my sintiments exactly with the saw & blow torch. I was just wondering about the exhaust system tho...might be a tight fit and of course the trans & drive shaft would have to be replaced I imagen....If anyone knows of a web site where somone already has done this I would appreciate it also I need to find out a little more about this engine. It's an '87 but anything else is just guessing for now.

 

[JT ZR-Won]

I will most likely try and dig it up next week. I'm moving this weekend so I'll be going through some stuff. I'll find it.

Jay

 

[Fishman]

I was just wondering about the exhaust system tho...

Oh... did I forget to mention the exhaust? And the radiator, and the shifter, and the hoses, and the air intake, and the A/C, and the.... well, you get the point.

 

[Ken]

It's been done, several times including GM itself:

I thought of doing that to my '87 before I decided just to go with a big small block. I also had a chance at an LT-5 but that would require as much if not more work.

 

[pthoma1]

anything is possible it will fit, and the radiator, and the ac and the vac lines, and the exaust, and the air intake they will fit too, but who needs a/c when you got 425 hp in a c4!!! And on a personal note (big fan of fuel injection) take out a loan on the house, rip out the big block and put a universal MPFI on it , now that would look sweet, and def. be something to tell the grandkids about (;


Have fun,
Paul

 

[Gorgon]

Check out fellow forum member Dave_C._95_Z28's web page on what he went through replacing the LT1 in his 95 Z28 with a big block. Lots of custom brackets and modifications, but if fit.

Dave's Page.

Leon

 

[Magmotor]

Thxs for the input...!!
A famous movie star once said, "A man's got to know his own limitations" and this is way way way beyond mine. I neither have the time, skill, knowledge, tools or space for a project of this intensity and size. If this comes about my plan is to find a Professional Hot Rod Builder's Shop somewhere in this country, hand them the engine and whatever year corvette they decide is best for this and ask them to give me a call when it's finished. That way I'll know it's done right the first time and everything that's put into it works with everything else. <tranny, drive shaft, rear end etc:> In the mean time I'm looking at a little 57' boat to anchor off Vero Beach, east coast of FL , live aboard and go treasure hunting.
Thanks again for everyone's info:...!!