88 Camaro 2.8 to a 95 3.4 swap

[ForcedFirebird]

The RWD headers DO work on FWD heads, I just made a thread not to long ago showing how.

[NArtissimus]

Really?!?!?!? I'll have too look at that... Gonna look right now.
Got the 3.4 out of the donor car so hopefuly We'll get to my swap on Sunday.
Wish me luck....

[Canyonero]

Hey are those MSD pack on the 3.4?? Did they make any difference? I put all MSD on the 2.8 with a Blaster coil and 8.5mm wires and hotter plugs. It seemed to run alot better for me... but the stuff I replaced could have been the original 20 year old crap thou. But my MSD wires dried and cracked in just over a year. Kinda pissed at that, now I think I'm gonna try those super thin silicone ones...

Yeah, I did put MSD on my Trooper. I was still troubleshooting at the time, it wasn't running right (I had a bad injector). I don't know that it would have made a big difference. Does look flashier though.

[NArtissimus]

Ok so now that I know I can make my headers work we're starting to think aluminum heads. One question with the mod was that, can I round port the aluminum heads just at the exit just to make them flow a bit easier and not have that void from the 'd' or will I run into a problem taking too much material away?

What else do I need to make it work? I got the heads and intake from an 02 Venture and I'd run the DIS from the 3.4. I think the pushrods will give me trouble and I also think the fuel pressure might be a problem. Will my ECM run it for now untill I can find something better from a Cav or Z34 or something. Also I'd try to run my MAF system instead of converting to a MAP. Is there any difference in the pistons (like 2.8 to 3.4) and compression ratios from 3.4 to 3400 I'm just thinking about piston clearance in the head. and what else... I don't know if my 2.8 tb will bolt to the intake or is there something better to use.

Thanks, Art

[geoffinbc]

D ports flow BETTER than round ports. Do not change them. I can sell you D port header flanges if you wish to make headers. All you have to do is flatten one side of your round tube to fit in the flange. Then you make a nice transition into the round tube. You really don't even need the D port flanges since the header tube is always larger than the port. This promotes cylinder scavaging.

[NArtissimus]

Ok well I guess that's why to just slightly modify the header flanges, well just gonna do some porting on the heads then and gasket post thr intake. It's out and it's aluminum so I might as well make it the best I can. So I just saw an 2000 Alero and it had the exact motor in it so it makes sence in a 02 Venure.

Anyone know if I can run the stock cam out of the 3400 LA1 in my L32 block so I could run the roller lifters and pushrods that I got from it? Otherwise what are the proper pushrods to run with the L32 with the 3400 aluminum heads? Also does the 3.4 block have the holes to bolt the lifter guides in from the 3400?

I also found that I can use the injectors from the 3.4 in the rails of the 3400 with a slight modification to drop the rail closer to the intake (due to the injectors being about 1/4" shorter) so that should eliminate my fuel pressure issue.


Thanks, Art

[bszopi]

There are no provisions in the 3.4L block for the lifter retainers. I know there are people who have talked about making something to allow for the roller lifters, but I haven't seen anything ever come out of it.

[NArtissimus]

Haven't taken my intake off of the 3.4 yet so I don't know what it looks like under there. Is there nowhere to drill into? it's just two bolts to hold each plastic section down right... Wonder if I can weld threaded studs coming out of the block...

[ForcedFirebird]

Haven't taken my intake off of the 3.4 yet so I don't know what it looks like under there. Is there nowhere to drill into? it's just two bolts to hold each plastic section down right... Wonder if I can weld threaded studs coming out of the block...

It will be easier to do what 923.4V6 did...






There is rumor that the roller conversion causes lack of oil, but I get confused by it. So long as the lifters are still hydraulic they should act in a similar manner.

Not only was his mod easier, but a local has cracket a 3.4 block in half in that same area. The 3x00 block has extra webbing for the added tapped holes. I wouldn't dare drilling/tapping or welding to the block in this area on a Gen1.

[NArtissimus]

yeah okay this looks totally doable. What about the cam and the lifters themselves?? Will they work fine with the 3.4 block unmodified? And yeah I can see the webbing, I just wasn't sure if the L32 block had that too. So from what I can see now it's definately a go for the aluminum upper swap. I just plugged my injectors into the 3400 rail and stuffed them into the intake and look great. The same locks even work.

[NArtissimus]

Okay one more question, Someone on the site did the 3.4 with the 3400 heads and intake (canyonero??) and said the used the 3400 pistons. Are the 3.4 pistons dished just the same as the 3400 ones??? I don't want my compression ratio to go through the roof. Still a daily driver. Also my 2.8 ECM should run this system since I'm sticking with the 3.4 injectors, 2.8 MAF and TB, and the DIS from the 95 Camaro.... Correct??
I don't wanna rebuild the bottom end right now so if it's not gonna work I'm not tearing the 3.4 apart. and just build my core for later with the aluminums...

[NArtissimus]

Ok well since I've kept reading on the site I've found that unless I want 11.5 compression I'm gonna have to change the pistons in the 3.4 too so, We've scrapped the idea for now. Just gonna stick with the 3.4 as is and use the aluminums on a later build. Got a good core ready to go so I might as well take my time instead of hurry this one together. Thanks for all you help guys I'll keep you posted on how this one finishes up.
Later, Art