Hi I a Portlander in Laramie Wyoming going to Wyoming tech. My Friend dewey316. told me to post here.

I have this great oppertunity to Trade an 87 mazda 626 For a more valuable 87 Comaro. The Comaro is a V6 with A 700-R Tranny. I 'm thinking about puting in a 350 or a 427 with either a 5 or a 6 speed. Your wise advice would be helpful.

 

If your gonna get a 5-speed for a 350 or 427 you'll probably want a built one, I don't think a stock 5 will take a ton of torque before being trashed. But a t-56 6-speed I have heard is a really great tranny for big power. A 427 thirdgen would be sweet And its spelled Camaro

Jess

 

If your going to do an engine and trans swap it's very important that you look around for a car that has the body and interior that you want. Don't look under the hood, just at the body and interior. Then when you find what your looking for you can put whatever powertrain you want. I would also make sure that you have another car to drive, the swap takes time and a BBC into a V-6 car takes even longer.

We do need a 427 car in the crew. We currently have a 396/6 speed, and a 502/6 speed in the planning and preparing stage. We also have a blown 454/5 speed swap in progress. Hopefully next summer we can have 4 BBC cars at the same place. One car of each displacement (396, 427, 454, 502) would be neat to see.

 

The Car body and interor are in great shape no rust no bends ect. I'm going to an automotive school less then .5 miles away and have plunty of people who can give me rides so travel is not an issue. I will be doing the conversion in 5-8 months so right now I'm gathering info on the kind of things I need to do to make this conversion possible. Plus maby some tips on whare to get parts.

 

A small block wil obviously be eaiser to swap in than a big block because of the already available motor mounts and such that will not have to be fabricated. If you stil want the larger displacement, you could go with a 383, 400, or larger small block. Good luck with whatever you decide to do.

BTW, CAMARO is spelled with 2 As and 1 O. (Yes, I'm picky about such things!)


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'91 Camaro RS - dark red metallic - '91-'92 Z28 wheels - leather - all power options (except power seat) - t-tops - Clarion head unit - Pioneer 4way 200watt 6x9s - Rockford Fosgate Punch amp and 2 Fosgate 12" subs - Edelbrock open element w/ K&N filter - Random Technology highflow cat - some free mods, more coming soon...

 

sorry about the spelling I wrote it just before going to bed

 

Not true! The mounts are the same for the BBC and the SBC. The major pain is exhaust. The only thing that really need to be fabricated for a BBC swap is room. I used a 4lb sledgehammer to make mine.

 

Motor mounts are the same. I agree with 87RS402.... the exhaust is the biggest pain. If you can resolve that problem the rest is plug and chug. Go with a used T56. It's the cheapest way to go and it's reliable. Better build your motor to rev though because the gears are tight.

This is my 2 cents.... You've got an autoshop at your disposal. Go all the way with the big bad 427. You'll never have an easier time of it with the assembly of people and equipment available to you. And when you're done it will be more valuable then a small block car. Anybody can do the small block in their own back yard. You have an opportunity here to make something unusual.

 

If their is anything that I need to change like computer anything in the drivetrain or suspension that must be modified I need to know. my limiting factors time (it must be done in 3 months) and money if I can find out what it costs now I can get the money for it hope fully. Plus any parts I can buy early and\or cheaper will save time and money.

 

If you put in a carbed engine the computer is useless anyway, don't need to bother with it. You may need a stronger rear for the power of a 427.

Jess

 

What you are going to need is easy.

*The engine, as mild or wild as you dare. Complete with carb and distributor.
*A transmission, Qwiktrip nailed it, a used T-56 is the best bet.
*A BBC starter, duh.
*A new transmission crossmember, Steve Spohn is one of the better places for that.
*Headers, Hooker super comps and a sledge hammer, or Lemons. Hookers are cheaper but lemons fit better. I have to use the Hookers for the primary tube size.
*Torque arm, Steve Spohn again.
*Clutch pedal assembly and master/slave cylinder.

That will get the car drivable, you're going to want to change springs at some point. 3 months to get the swap done? It could be done in a week if you have the time to put into it.
That's just a list of things you have to have, they're a few more things you'll want to make sure you have before long, SFC's and suspension stuff.

What am I missing here guys?

 

I think I will go with a 427 (It sounds different) so now it is a matter of finding one. The engin I will need to build from scrach or at least assembel after being maceined so ne crate engines...so whare do you think the best place to find one is. Is it better to build up the 700r tranny or get a T-56 for both cost and time. Plus what is the best way to go about finding the T-56 if I go that way.

 

A 427 would be awesome, but I think finding a good one could be expensive. I personally would try to make more horsepower for cheaper out of a SBC. 700R4's are great trannys especially if beefed up, but you'll need to do some work on the externals since it has the 60 degree V6 bellhousing.

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89 GTA - L98 auto, Black, Black Leather, T-Tops

 

I'd stick with the 700R4 for right now, you can always change it later if you must have a manual trans. You are going to need to get one from a V-8 car though, the V-6 has a different bolt pattern.

Finding a 427 is easy if you know how to mix and match a little. The 366T ( T is for truck), 396, 402, 427, and 427T all use a 3.76" stroke crankshaft. The 427, 427T, and 454 use a 4.25 bore block. You can put any of those cranks in a 454 block and have the 427 you desire. It may not be an original 427 by the casting #'s but it will be a standard GM 427. All BBC's use a standard 6.135" rod. Heads are going to be the fun part, decisions, decisions. Stick to oval port, semi-open chambers. Those are around 112-116 cc's. Don't go over board trying to build a torque monster here, try for a balance. BBC's produce alot of torque anyway so building one to make more is going to break your car.