LBZ: Where to find a sturdy blocker plate?

C.bowles2

2005 lly duramax
Nov 16, 2013
489
0
16
Ohio
Im trying to find a blocker plate for an lbz. The plate for the up pipe. Id remove the up pipe and cut and weld it shit but the bolts dont seem to want to move and im worried they would break off in the manifold/ turbo. The only plates i can find look like the thin ones that you would use in between the egr cooler and up pipe. Sinister has the thick ones but they dont sell them individually. Any other options? Want one like this
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clrussell

pro-procrastinator
Sep 23, 2013
5,928
399
83
It's just break off eventually.. If you'll take an air angle grinder you can cut it off and weld it in the truck.. I've done probably 5 that way.
 

C.bowles2

2005 lly duramax
Nov 16, 2013
489
0
16
Ohio
It's just break off eventually.. If you'll take an air angle grinder you can cut it off and weld it in the truck.. I've done probably 5 that way.



I was thinking about that. What are you using to weld in there? A round piece of steel? Maybe a freeze plug?




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C.bowles2

2005 lly duramax
Nov 16, 2013
489
0
16
Ohio
Called sinister and they wont sell me just the plate. I dont know why they couldnt??? Kinds crappy way to deal with a customer




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clrussell

pro-procrastinator
Sep 23, 2013
5,928
399
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I was thinking about that. What are you using to weld in there? A round piece of steel? Maybe a freeze plug?




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I usually find a big ass bolt head that fits the pipe and weld it in. Using a mig welder obviously
 

clrussell

pro-procrastinator
Sep 23, 2013
5,928
399
83
If you cap it with one of those bolt on plates plan to have to weld the up pipe at some point.. I've seen to many of them break the bellow on the up pipe and then you have a big ass drive leak.. My old lbz was one of them.
 
Jan 28, 2015
961
0
0
Ohio
I've ran Rick's and had no issue but still prefer to weld them. Up pipes aren't fun so I like to only touch them Once
 

c20elephant

C20ELEPHANT
Apr 25, 2013
2,065
0
0
Phoenix, Arizona

Dallas S

Active member
Jun 17, 2009
486
33
28
Alberta
I have more then a few sinister ones sitting here. All used, all removed because the bellow cracked. Id feel bad giving you one. Just do it right the first time. Nothing worse they trying to limp home with a cracked bellow.
 

C.bowles2

2005 lly duramax
Nov 16, 2013
489
0
16
Ohio
Why doesn't the bellow blow with the original egr cooler in tact? When the egr is closed wouldn't it be the same pressure?




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LBZ

Super Moderator
Staff member
Jul 2, 2007
9,903
149
63
46
B.C.
It's because when it pressure's up, the bellows bends and tries to expand. With nothing to secure it, it eventually flexes too much and cracks. Binder dundat. Run a blocker plate with the egr in still or non egr up pipe.
 

THEFERMANATOR

LEGALLY INSANE
Feb 16, 2009
3,890
43
48
43
ZEPHYRHILLS, FL
Why doesn't the bellow blow with the original egr cooler in tact? When the egr is closed wouldn't it be the same pressure?




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Support. Hooked up to the cooler, the pipe is held VERY securely, and it keeps the bellows from expanding under pressure. That little plate with just 1 bolt cannot hold the up pipe securely enough to stop the bellows from expanding, and eventually rupturing. I talk people out of the deletes and have them use a blocker plate. It won't increase the chances of the up pipe cracking or leaking, keeps it looking stock for inspections, easier to install, and they work just as well.
 

c20elephant

C20ELEPHANT
Apr 25, 2013
2,065
0
0
Phoenix, Arizona
The only issue I saw with the block I was going to install on mine was it was not flat enough for the 2 10mm studs with nuts to seal it up. I did not take any chances and used a flat surface, some sandpaper and surfaced it, surprising how flat it was not....