Clutch line drill mod needed for LT1?
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
It restricks flow when you push the pedel real fast. It also controls fast clutch release. This is part of what will make a clutch burn on a drop. it is still being controled on the release instead of a fast drop 
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Thread Starter
Joined: Mar 2006
Posts: 4,668
Likes: 5
From: Central Kentucky
Okay I have my LT1 flexible line removed now. There appears to be a restriction on the MC end but not on the fitting surface, it is down in the hole about 1" deep or so. In fact I can barely fit a 1/16th drill bit in this hole. The 1/8" drill bit will fit in the upper portion as shown in the above photo, but stops about 1" into the fitting.
Cant tell anything on the SC end do to the right angle fitting.
Is this indeed a similar restriction like the LS1 flexible line?
Should I run the 1/8" drill bit in and open it up?
Cant tell anything on the SC end do to the right angle fitting.
Is this indeed a similar restriction like the LS1 flexible line?
Should I run the 1/8" drill bit in and open it up?
Last edited by wrd1972; Nov 10, 2008 at 05:18 PM.
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Yes run it down and blow it out good
I cheat, I have a wire dril index
I cheat, I have a wire dril index
Okay I have my LT1 flexible line removed now. There appears to be a restriction on the MC end but not on the fitting surface, it is down in the hole about 1" deep or so. In fact I can barely fit a 1/16th drill bit in this hole. The 1/8" drill bit will fit in the upper portion as shown in the above photo, but stops about 1" into the fitting.
Cant tell anything on the SC end do to the right angle fitting.
Is this indeed a similar restriction like the LS1 flexible line?
Should I run the 1/8" drill bit in and open it up?
Cant tell anything on the SC end do to the right angle fitting.
Is this indeed a similar restriction like the LS1 flexible line?
Should I run the 1/8" drill bit in and open it up?
Thread Starter
Joined: Mar 2006
Posts: 4,668
Likes: 5
From: Central Kentucky
Done did.
Ran the 1/8" and drilled out the restriction. It was very small and did not take much to go through it. I doubt my inches will really miss it.
So for all those who have wondered, does the LT1 clutch line have a restriction like the LS1 guys have? Yup. You just have to look down in the larger hole on the MC fitting to see it .
Ran the 1/8" and drilled out the restriction. It was very small and did not take much to go through it. I doubt my inches will really miss it.
So for all those who have wondered, does the LT1 clutch line have a restriction like the LS1 guys have? Yup. You just have to look down in the larger hole on the MC fitting to see it .
Last edited by wrd1972; Nov 11, 2008 at 08:08 AM.
