4.3l exaust... post your pictures.

Started by werty, January 08, 2008, 09:17:35 PM

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werty

January 08, 2008, 09:17:35 PM
When doing 4.3l swaps, what does your exhaust routing look like?
How much frame clearance do you guys have between the exhaust manifolds?

toybuilt

#1
January 09, 2008, 10:07:16 AM
Theres anough clearance. However I pushed my engine as far back as I could to the fire wall just to make sure I had as much room as posible for the radiator and the fan. It looks like I have lost all of my pictures on my computer though, I'll have to take some new ones when I get a chance.
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FIREBALL

#2
January 09, 2008, 12:57:07 PM
Mine was very tight to the frame but it did not hit. This is with stock S-10 Blazer manifolds.

Gittinit

#3
January 09, 2008, 07:52:34 PM
Quote from: FIREBALL on January 09, 2008, 12:57:07 PM
Mine was very tight to the frame but it did not hit. This is with stock S-10 Blazer manifolds.
What manifolds? stock (yr)?  are they all the same from early 4.3 to late?
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werty

#4
January 09, 2008, 08:22:02 PM
Quote from: FIREBALL on January 09, 2008, 12:57:07 PM
Mine was very tight to the frame but it did not hit. This is with stock S-10 Blazer manifolds.

Can you take a pic of the exhaust manifold on the pasenger side wheel well where the brake lines are? So I can see the gap between the frame?

bayouhazard

#5
January 10, 2008, 08:04:53 PM







I have the thorley headers.  Before I did the drivetrain lift the collectors were sitting on the frame rail.  After the lift there was plenty of clearance.  I ran my cross over under the converter to a Y pipe and down the driver's side to the rear. I cut a hole in the cross member and ran the tubing through it.  I had looked into putting manifolds on but after some measuring it wouldn't have gained any clearance. I'd recommend getting the motor up high in the engine compartment to gain a little clearance.  You will open some other cans of worms doing this though.  You can see my stuggle in the buildup thread The yotalet buildup.  Good luck.
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werty

#6
January 10, 2008, 09:31:51 PM
looks like the hood is going to get a huge k/n sticking thru it. thanks for the Idea for the tranny tunnel.

FIREBALL

#7
January 11, 2008, 06:53:44 PM
I cut my hood and made it into a cal induction type to fit everything without a body lift. I didn't have a filter on top to worry about but it helped with the radiator and helped get some heat out of the engine compartment.
Sorry I don't have anymore pics. The only one of the passenger side is the last one in the other set I posted.
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