Hey Guys. I’m getting ready to buy a 350 SBC 5.7 Vortec for my 91 camaro to upgrade. I’ve been doing a lot of research on what all will need done. I’ve been hearing a lot of conflicting information on what will actually need done. i’m going to go over what I’ve heard and hope I can get some clarific…

You say that you are still making payments on the car. The last thing in the world you should do right now is start making changes on the powertrain. What happens if things so south in a hurry; and believe me they can and do. You’re sitting there with an inoperative vehicle that you still owe money…

[image] birdbrainxzx: I would definitely appreciate any advice on what engine would be a good alternative. Forget changing the engine . Just rebuild the one in the vehicle and put the thing in as good a condition as you can afford and it will be appealing to more people if you decide to sell.…

The stuff you don’t have to change… the rearend is fine and the power steering pump, too The 700R4 won’t bolt to the V8, I am pretty sure it has a different bolt pattern The 3.1 radiator won’t cut it The 3.1 wiring harness won’t cut it, 6 injectors vs 8, different placement of sensors The 3.1 EC…

Thanks for the advice man. I think I may stick to doing a manual swap for now. I know there’s stil a decent amount of work involved ut nothing compared to a project like this t seems. I can also focus on just doing performance upgrades to the 3.1

The biggest bang for your buck would be a 4:10 rear axle ratio swap. If it doesn’t have a posi, add one with the new gears. I’d suggest a Tru-Trac gear type if you are buying new or if you can find a Torsen out of a 1993 and up car, that is a great swap. The axle assembly itself will swap but they …

Sweet. I’ll keep that in mind. I’ve been reading that the T56 transmission is like the best manual tranny for doing a manual swap. Do oyu know if ti requires any modification or could i just do a direct swap? or if there’s a better manual tranny to suggest?

A T56 is overkill for a V6. I think finding a bellhousing to bolt it up could be difficult and or expensive. The trans is also expensive. A V6 Tremec T5 is relatively cheap, light and capable of dealing with the V6. The V6 version won’t handle a V8’s torque so they are cheaper. Bellhousings can be …

Why won’t the 700r4 bolt to the 350? Since GM used the 700r4 behind the 350 in some applications? I’m not arguing, just curious. Kind of a moot point anyway as I think getting the 350 in the car and attached to the transmission would be one of the easier parts of the project. Getting everything to…

Why are you doing it? V8 is cheap? Current motor is shot? Bored? Sell car and buy a z28? Stubborn? I would say buy a 305 Camaro but they are barely better than a v6

Unfortunately I was dumb and bought the camaro from a dealership so i paid way more than I should’ve. that being said the car is in pristine condition otherwise. The Engine is actually fine. but I am still making payments on it for the next year or so. Also being said. This camaro has become my baby…

The 3.1 V6 is a 60 degree V6 that was originally designed for the Citation. Yeah, Citation! It has a narrow bolt pattern that is not the same as the V8 or even the 90 degree 4.3 V6. Since his car came with the V6 and the 700R4, he has the V6 bolt pattern, not the V8.

1991 Camaro RS 3.1 to 5.7 Vortec swap

General Discussion

eddo August 19, 2019, 5:06pm 25

yeah- or do that.

Topic		Replies	Views
Vortec swapped malibu Maintenance/Repairs chevrolet , malibu-classic	22	2123	December 26, 2021
Engine Swap Maintenance/Repairs	10	940	December 31, 2007
Motor swap Maintenance/Repairs	1	364	May 18, 2008
Camaro supercharger Maintenance/Repairs chevrolet , camaro	24	3556	February 24, 2011
Motor change Maintenance/Repairs	5	696	May 16, 2012

1991 Camaro RS 3.1 to 5.7 Vortec swap

Related topics