[C2] Another Tremec Question
Thread Starter
Racer
Joined: Jan 2015
Posts: 256
Likes: 200
From: Valley Forge, PA
Another Tremec Question
I'm getting ready to order my Tremec from SST.
Going with the close ratio and .68 fifth gear for my L79 with 3.36 Posi
Those of you that have upgraded did you:
- Also upgrade to hydraulic?
- Order their clutch, flywheel and bell housing?
Going with the close ratio and .68 fifth gear for my L79 with 3.36 Posi
Those of you that have upgraded did you:
- Also upgrade to hydraulic?
- Order their clutch, flywheel and bell housing?
Race Director
Joined: Jul 2018
Posts: 10,592
Likes: 8,416
From: San Antonio, TX/Mahopac, NY
2026 Restomod of the Year Winner
2024 Corvette of the Year Finalist - Modified
2024 Corvette of the Year Finalist - Unmodified
2023 C7 of the Year Winner - Modified
Option B. There is no reason to go with a hydraulic clutch and every reason to stay with the Z-bar. The TKO600 in my ‘64 sits behind a 560 ft/lb of torque Blueprint 427 sbc, so I ordered their stronger clutch. It is easier to operate than the stock clutch in my L72. Plus, I have none of the engineering requirements of a hydraulic clutch in a car with a fiberglass firewall.
Melting Slicks
Joined: Feb 2015
Posts: 2,570
Likes: 1,126
From: Huntsville AL & Hills of Southern TN
I liked the feel of my clutch prior to the TKO install but told my installer to use the new clutch/pp provided with the kit. Hated feel of kit clutch/pp. Learned the “old” clutch was a Centerforce. Pulled just installed TKO and installed a new Dual Friction clutch/PP. SST may offer an upgrade now. Otherwise Love SST and the trans. Clean up the flywheel. You’re gonna love 5th. Cheers, Larry
Race Director
Joined: Apr 2005
Posts: 10,179
Likes: 2,306
From: Wesley Chapel, FL Las Vegas, NV
Tremecs in the 64 and 65 we used the stock clutch linkage. If I had headers I would have gone hydraulic.
My 65 has 3:36 gears. Works great. I don't go 5th until around 60 mph
My 65 has 3:36 gears. Works great. I don't go 5th until around 60 mph
Racer
Joined: Dec 2008
Posts: 423
Likes: 246
From: cumberland md
I put a ls3 and tremec 6 speed in my 2005 Silverado. Hate the hydraulic clutch because I have ended up replacing the hydraulic throwout bearing every 7K to 10K miles. truck currently on its 4th throwout bearing and its starting to scream. If I had to do it ll over, I'd get a tremec 5 speed and utilize the stock clutch hydraulic system . the 5 speed allows for OEM throwout fork and common throwout bearing. mike mccagh
Le Mans Master
Joined: Aug 2005
Posts: 6,541
Likes: 1,975
From: Temple Terrace Florida
I put in a Tremec in my 66. It has a 4:10 rear. it makes driving on the highway so much quieter especially with the side pipes. I used the stock clutch set up as well as the stock bellhousing. I did use the recommended roller pilot bearing. Don't forget to "dial in the bellhousing". I used the opportunity to balance the flywheel and the pressure plate. I also changed the ring gear. Jerry
Racer
Joined: Jan 2008
Posts: 358
Likes: 297
From: Lexington, KY
I went with a hydraulic twin disk. Albeit my engine made 654 ft/lb and I'm currently having BES engineering design a new top end that I hope to pick up another 150-200 from. Better to over engineer it than go back and clean up a mess over saving a few bucks IMHO
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski