LT1 T-56 Drill Mod?
Thread Starter
TECH Fanatic
Joined: Aug 2008
Posts: 1,740
Likes: 2
From: Nebraska
LT1 T-56 Drill Mod? Hey guys, I've been trying to search for an answer to this but I can't find what I was looking for.
Do the LT1 clutch hydraulics need the drill mod? Or is this only for LS1 cars?
Do the LT1 clutch hydraulics need the drill mod? Or is this only for LS1 cars?
Trending Topics
The LT1 clutch hose DOES have a restriction also. Whether it has the same effect as the restriction for the LS1 line is debatable. Likely not.
The restriction is on the MC end but not on the fitting surface, it is down in the hole about 1" deep or so, right where the bit ends in the pic. In fact I can just barely fit a 1/16th drill bit in this hole small hole. The 1/8" drill bit will fit in the upper portion of the fitting, but stops due to the restriction about 1" into the fitting. I then ran the 1/8" bit in to cut out the restriction.
Cant tell anything on the SC end do to the right angle fitting.
Doing this allowed me to shift harder without occasionally grinding gears. Do it and make sure you get the shavings out.
Last edited by wrd1972; Jun 30, 2011 at 08:51 PM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Thread Starter
TECH Fanatic
Joined: Aug 2008
Posts: 1,740
Likes: 2
From: Nebraska
Okay thanks guys, I'm gonna need a new clutch here in a couple months so I figured I would see if this was needed since i'll be down there.
My MC and SC work great yet so I don't think I will replace them.
My MC and SC work great yet so I don't think I will replace them.
Would this help with no-lift shifting? That is the only time I scratched my head when shifting with this car, the only time I tried that back in 04 when I got this car. It just didn't feel right. Since that day I always come up off the throttle a little between gear changes if I'm racing the car.
^ Im not sure about that. But to me, this mod is very simple to do and only takes minutes. And since there is a restriction, it could not hurt. Now, i will say when I did this I did put in a new slave and since then, I do not miss any shifts and can shift faster. New slave? Combo of both?
Would this help with no-lift shifting? That is the only time I scratched my head when shifting with this car, the only time I tried that back in 04 when I got this car. It just didn't feel right. Since that day I always come up off the throttle a little between gear changes if I'm racing the car.
TECH Regular
Joined: Oct 2008
Posts: 492
Likes: 0
From: Rochester, NY
Probably couldn't hurt to do the adjustable MC mod while you've get it all apart to do the drill mod...https://ls1tech.com/forums/manual-tr...r-writeup.html
