EGR mods.....

[Mr Bravada]

now, i have already done the mod previously brought up on the site, but i have to wonder though because i have noticed after helping a friend with a neon and they have the EGR "disabled" and looking around its a pretty common thing to do on high-mileage american sedans...neons, cavaliers ,etc.. that you just place a resistor in the sensor and block off the plate with a quarter.....
Now my question is for us with vastly bigger engines....would the mod work for me or not? or would it cause more problems that it would solve?

[Mr Bravada]

oh some background info:
The headers i was to install on my bravada where originally bought for my old '89, but i sold that truck and found the headers in the garage and was going to put them on the bravada but got side tracked and put it off....
Well i pulled the fenders last night and low and behold there was an EGR tube coming off that manifold.... funny because i did the mod and forgot..... the headers are for the non-EGR tubed trucks
What do i do? i could weld that fitting to my headers fairly easily or do something to the EGR system...but want to check my options first....
I guess if i had to i could sell off my set and get the correct set for my truck but i have only 14 days more with my mom outa town ( i use her truck while mine is under the knife) so what do i do?

[OBI WAN]

If you can weld pretty good you'll need a tube and the end fitting and place it wherever the factory line may reach it, even if its off just one header tube!

[bvr775]

I've never tryed this so don't yell at me if it doesn't work. A buuddy caped his by useing some copper pipe ends and sweating it with a propane torch just you would do with plumbing. He's a plumber by the way so he may have some secrete for getting disimular metals to bond.

[Mr Bravada]

lol, yea if only i could weld really well....... my dad's buddy is coming over i guess he's like some sort of "certified" welder.....lol

[Mr Bravada]

were there any differences in the blocks on the 4.3? such as any changes during the years '89-01?

[Mr Bravada]

thanks for the input guys, i was hoping one of you two were around.....lol

[OBI WAN]

Heads where different. I was told but never confirmed that the ports are about in the same location, but the bolts holes are not. I know of 2 people over the last 5 years Ive spoekn to have used older long tube headers on the Vortec heads but had to do some reworking of the tubes and drill new mounting holes!

[blazen]

I had found some where a long article about the 4.3's it told everything from which factory each motor was made in to all the specs of the motors. I'm not sure where i found it but if i run into it again i'll post it. it would be good for the articles section (if thats not where i saw it).

[Mr Bravada]

once again thanks guys, i am going to check the bolt patterns on them to see if they are close or not

[Mr Bravada]

yea they did match right up, just how close are they supposed to be on the driver's side shock mount? because they are pretty tight up in there.....

[OBI WAN]

My JBA headers for the Noma, the drivers side actually just tapped the shock mount. We bent that tube to clear by 1/32 cause it just didnt want to bend and never had a problem with it!

[Mr Bravada]

yea that was the problem we were having, but i found a set for sale with the EGR fitting on them so i will be shipping up a set of the ceramic coated ones from Sy-clone that way i won't have to modify the set i have....