Well like the title says Im currently swapping to the Aluminum heads and intake setup from a FWD 3.1... I had the intake sitting ontop my block and it looks like the distributor might be able to fit.. Im sure nobody here is gonna agree with me but it looks damn close.. Ill post some picks tomorrow when theres more progress but as of now I only got the lower intake off and the valve covers, heads are still on.. Gonna have a 2.8 block, 3.1 crank and pistons from the FWD engine, aluminum heads and intake from the FWd engine... After the heads are on Im gonna see how much room I have for a turbo

 

Ugg, the dizzy WILL NOT in ANY way shpae or form fit the lower intake. The #6 runner has to be completly blocked to do so, and then the fuel rail needs to be modified to fit around the Dizzy.

Easiest just to swap to DIS, and build a crank trigger wheel.

 

I havent heard of anyone swapping in a FWD intake and using dizzy. However, there are several FWD intakes. Who knows if all have been tryed.

 

All aluminium head intakes will NOT allow for use of the dizzy, period, we KNOW they have ALL been tried.

There's really only two version of aluminium head intakes, the genII and genIII, but there are changes between them, like port location, PCV passages, minor things like that, but space around the Dizzy is not there.

 

oo, so its also heads, along with intake.

My bad

 

How do I build a crank trigger wheel? Would the crank from the FWd engine hav one on it already? If so could I jst use that crank?

 

The FWD engine does indeed have a crank trigger, the problem is, when you swap to a 2.8 or 3.1 block, there is no location for the sensor, that is OEM installed in the rear side or passenger side of the block.

You can build or have built a crank trigger like mine:



in progress:


I'm sure I could have one built for you. Probably somewhere around $200 CDN, but I'll have to ask my machinist about it.

 

Does it have to be setup exactly like yours, in the same place/angle? What do I do with the dizzy just leave it out and cover the opening?

 

The 3.4 has a sensor down on the right side, just infront of the starter. Six's is basically in the same angle, just up front off the balancer, rather then a notch in the crank.

As for the dizzy, the FWD and RWD 3.4 w/o a dizzy has a gear drive. It makes the oil pump spin. If you just "cover the hole" your oil pump will not spin and you will fubar your whole setup in a few seconds.

All this has been talked about and covered before.

 

Well Im using my 2.8 block with 3.1 FWD internals and heads/intake, not a 3.4

 

how much room do you have for the dizzy?

Could get the dis cut down

 

Just a small correction. My entire timing wheel was turned about 25 degrees, since my sensor is actually below the level of the pan rail, this was the only way to make it all fit in my application.

You have to make sure the home signal is timed right, and thus why I rotated my set-up.

My block is a 2.8 block with FWD crank, just like you are wanting to do, why do you not want to listen to me, you know, someone who HAS performed this build and swap? You will need to go external crank trigger, to make it easy, you could have a machine shop fabricate the block mounted sensor boss and weld it on, but then you would have to do that all over again if you had to build another block. External crank trigger can be swapped between engines at will, with no later machine work.

*taps on keyboard* Hello? Is this thing on? *taps on keyboard*

You can't cut the intake and the dizzy is that size for a reason, there is no way to make it smaller, and even if you could, you would have to cut over half of the dizzy off vertically to do it.

Just face it there is no easy way to get ignition to these hybrids.

The easiest way is actually to use a 3.4 block.

 

Alright sorry Six Ive been getting confused with the differant posts.. How much would it cost US for your guys to fab me up one of those mounts? What else is involved with mounting it outside the block? Yeaa I measured the Dizzy and such and there isnt a way for it to fit... How do I keep the oil pump spinning since the dizzy wont fit? Could I just hack saw the top odd and drop it back in? Prolly a reeal bad idea but thats all I can think of...

 

I'll have to find out.



GAH!!!!!! Dale has said it, oil pump drive.

Look on that FWD block, where the dizzy normally would go,take that out, there you go drive your oil pump.

 

Alright thanks man.. Well I didnt know there was a oil pump drive on the FWD block, Ill have to go grab it tomorrow. How does that crank sensor work? Is there something on the pully like a timing mark that it reads everytime it rotates? Thanks for the help guys.. Despite me being confused for most of it lol

 

I looked back and six's pics, I thought it was titled up higher.


As for what is on the FWD's and 3.4, is a hole in the side of the block, 3/4" in diameter. A sensor goes in and reads a NOTCH off the crank. Whenever that notch matches the sensor, it sends a signal.

 

Well I cant afford the rest of the parts so Im gonna see if I can make a custom Cap and rotor.. gonna have to be really small or Im gonna see if theres a way to raise it up a few inches and cut a notch right below the windshield...

 

If you can wait a few months, I'll be working on a custom dizzy to fit this application.

No matter how you slice it, the ignition side of this swap is not going to be cheap. Either a crank trigger wheel and bracket, along with the sensor, or a custom dizzy.

 

Grad a 4.3l s10 dizzy from the junk yard and compare it to your 2.8/3.1 dizzy.

Its the same cap and ICM.

 

And complicate the process by 20 fold?

By the time you modify everything that would need to be modfied, you'd end up with what looks like a 660 dizzy, so I don't see how this would be any benifit.

 

W/o heavly looking at one and having it in hand. It takes the same cap and ICM. Its just taller, should be same diameter. Yes, you would still have to modify it, yes. But its taller. IMO, it would be easier to shorten it, then lengthen one.

But since I havent done the swap, I dunno. Just my thoughts.

 

well if its taller that just might work.. what year s-10's had the 4.3? Im gonna check the yards toady, got 3 within 10 miles..

 

TBI style ones. Not vortecs.

Say.. 88-93'ish. I belive its the same as the 4.3 in silvarados and astro vans.

 

Do you know offhand how much taller it is? None of the yards around here have one.. Only need about 2-3 inches or so for the Dizzy to work.. Man if this works Im gonna have a party for everyone on this board lol..

 

No I dont, sorry.

 

Well I finally got my dizzy out after breaking it from prying on it for so long.. I decided to do a little mock-up to see how high the dizzy will have to be raised in order for it to clear the LIM and from the looks of things its only gonna need an inch or so.. Heres a pic to help persuade lol... Gonna disassemble the dizzy tonight and see if its possible to lengthen the shafts by either getting new ones machined or welding on an extension..

 

Don't get all fussy when folks are trying to come up with ideas to help you out. [#1 problem on this board] You are doing a custom mod that needs out side of the box thinking. You didn't even know where I was going with that question. But assumed you knew.

Now

I just happen to know a guy who's whole business is building custom dizzys for all kind of custom apps and several pro race teams. If there was enough room for the shaft to spin and maybe 1/3-1/2 of base plate room avaiable for guts. I know he could build something that would work better then expected and better then anything your gonna find stock to hopti rig to work. Or he could advise you on how to lengthen it right or even say, just use this shaft from this car.........

Even if ya don't buy Id stil talk to him for advice.
He is the man, straight up peroid. If you want it done right, id talk to him.

 

BTW, there is a new GM 3.4 intake that puts the throttle body back over the front accessories coming out on tons of the little cross-over type SUVs. I have seen no less than 10 of them this last week. It is a high-rise crossram style manifold with a huge throttle body and the large LS1 style MAF sensor on it. It would probably take a cowl induction style hood to clear it, but it would be cool.

Edit- It comes in the Equinox and makes 185 FWHP @ 5,200 and 210 ft/lbs @ 3,800 in stock form.

 

Hey Gumby does that guy have a site to check out or an email??

 

Just note he is and older dude so be extra polite.
He is set off real easy. But its allowed at his age, his knowledge level and oh so many cool friends. Not easy to get him talking but when he does ya listen close.

Dave's Small-Body HEIs
Dave Ray [AKA IgnitionMan]: Specializing in quality HEI and MSD trigger pickup only conversions, handbuilt into your stock points-type distributor. Dave's Small-Body HEIs

In this thread he helped a guy with a problem similar to yours. He needed a different shaft for a caddy app. He gives his phone number in the thread too.
Id probably try to call also. But make sure he isn't busy and call back later. You want to have time for him to ramble and not be in the middle of a project.

BuickThunder.com "Think Outside The Bowtie" :: View topic - Non Buick Request for Dave

 

charger, did you find one out of a 4.3 s10?

355, can you get a pic of one of them w/o the plastic cover? And why have you seen so many? Problems, or basic mainatince?

 

No still no luck on the 4.3 dizzy, it would save alot of effort tho.. For the custom shaft there would have to be another mod to the shaft piece above the gear in order for it to lengthen the right way, and then wed have to use a shim or just get a block and bore a hole in it..

 

I will try to get a picture next time I see one. No problems, just basic maintanence. They seem to be pretty popular around here. I do know that the throttle is drive by wire though.

 

Well this swap is still raping me every way possible.. but someone gave me the idea of taking 2 distributor shafts, cutting them and then welding back together.. Its a shot in the dark but Im gonna go ahead and do it anyways..

 

That title almost gave me a heart attack. Horrible flashbacks of GM almost building the 3rd gens as a front drive car. Thank God tradition won out on that one, other wise I would still be driving a tiny little RX-7

 

hey i have a2nd gen rx7.....with a 2.8 in it.