I have a 1984 Camaro that we are rebuilding a sbc 350 for.

It originally had the 2.8 L V-6 in it, with the 700-R4 transmission.

We have been able to find the same 700-R4 transmission from a 1986 Camaro with the 305 HO engine in it.

Our 350 came out of a 1982 GMC 3/4 ton truck. Not Ideal, but its what I got give to me, the price was right...

We have rebuilt it all stock to this point. Stock Cam/Crank/Pistons/Rods/etc etc

Until we got to the Heads.

The Heads for the Truck were casting 462624 and they were pretty much shot, the truck had been a propane burner and they were beat to death. The guides were shot and they had about 8 seats that were going to need replaced. Not Cost effective to use.

A friend of my dads had a set of heads off an old sbc 307, I looked them up, they were from 69-76 and used on 307/327/350 they have 70cc combustion chambers the casting number is 3927185.

Again maybe not perfect but the price was right... he wanted them out of his garage...

These heads are in much better shape than the ones that I had before and will take very little work to get them ready to install.

We have a set of full length headers that have a 3" collector for the car, which we will be installing.

And we have a 4bbl Rochester Quadrajet off of a 1976 Chevy 350 engine. I am running the stock intake off of the same engine.

Are there any major things that I should look out for when setting this up?

My major questions would be with the V-8 Engine and the tach, since I think that goes through the onboard computer, but I could be wrong.

The transmission has the cable connection for the speedometer so thats not an issue, because its the same as the one that was in it before, and I have the same size wheels on my car as the one that it came out of.

Our biggest concern I guess to this point would be with the heads and if they will perform ok or not.

This is really the first time we have done this much engine work on any one of the cars we have worked with.

Any help or suggestions would be welcome.

 

Nice score on your budget build...I would hit the JYards and look for a different set of heads.....the ones you have (307) did not "perform" new...low compression smog heads..just about any other 350 or 305 head would be better....other guys can help you out more than myself...put this ttt for some of the head gurus!

 

Another Quick Question or two...

We have a set of Full Length Headers from a 2nd Gen (1980) Camaro, Will they fit in my 1984?

Also we already have to valve work done on the heads so I'm pretty much stuck with them for now, will probably upgrade them later along the line...

The question we have about the heads is can we use the Valve Rotors from the newer heads on the exhaust valve springs on the older heads or is that a bad idea?

 

For the price of a set of valve springs and retainers, it's best to throw all the stock springs and rotators in the ol' recycle bin.

For the price of a street cam & lifter set, it's best to do the same with the cam.

You're still short a bunch of V8 mounting stuff. Most of it will have to come from the bone yard.

2nd gen headers don't clear a 3rd gen chassis. Sorry.

 

This is going to be a daily driver, and we are on a fairly tight budget as the car itself has quite a bit of work to be done as well.

What are the odds that the stock exhaust manifold from the 82 pickup will work with the 84 camaro?

 

Slim to none.

How much of that '86 Camaro is available to you? That's where you really need to be getting parts.

I have a set of TPI manifolds (much like the HO manifolds, no EFE valve though). Shipping wouldn't be cheap.

I hope you realize your V6 exhaust is completely worthless for a V8.

 

I meant the stock exhaust from the 350 out of the truck...

Not a whole lot of the car is available, I wish there were more of it for me to pick through, but there is quite a bit of it already gone or damaged from the wreck it was in.

The 350 is from the 1982 truck and we have no emissions here so I'm not worried about any extra's on the engine (for those who were wondering).

 

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My first swap I put a 327 in. I bought the cheapest set of "shorty" headers I could find..$80 .aT www.summitracing.com you need the y pipe from a third gen, If your looking for dual exhaust it has been done ..but doing it right,,is quite expensive.
I found a guy here in town that ran 3" pipe back form y pipe (custom) the to a flowmaster
Duel out the back...the whole exaust cost abot $380 complete
And that was going as cheap as I coud...No emissions here either but kinda hard to find a shop that will install an exhaust without a cat.
Sorry but thrd gens are kind of a unique car...thats why I like them

 

I thought you only meant the exhaust manifolds. That's slim to none.

The rest of the exhaust out of the truck - you might be able to cut it up and re-use some of it, but good luck.

 

Its been said that you can recalibrate the v6 tach to work with the v8, I"m having a little trouble with the wiring, and having some trouble finding the topic in the search.

Any help would be appreciated.

My ignition is the HEI from the 82 350, It has 3 wires from it, and the tach ground connectors, the v6 engine had a 4 wire connector and a 2 wire connector, trying to figure out what goes where.

 

Ok, I found this in another thread.

Camaro Harness:

4 Wire Connector
Red: Ign - Hot in Run or Start
Black: Ground
Brown: Coil -
Yellow: Coil +

2 Wire Connector

Purple: Mag Pickup +
Orange: Mag Pickup -
Green: Tach
White: Trigger

Not sure exactly what the 4 wires into the 2 wire connector means. Unless the Green/Purple and Orange/White use the exact same signal for whatever they do....

But so far my best guess is that:

Green goes to Tach on HEI
Red goes to Batt on HEI

And If I remember Right the HEI has 3 wires in its plug.. White, Brown and Black...
Ground would be Black to Black?
I would then assume that Brown to Brown and Yellow to White for Coil?

I know you guys have had to have had the same issue come up when putting an older engine with HEI into the cars. Please offer some insight as to what wire goes where.