rll2

iTrader: (8)

I recently purchased a 99 6spd Trans Am
The clutch engages at the top of the pedal
The car is bone stock and will remain mostly that way
Probably do exhaust, LS6 intake with a 92mm T/B
But with only 28,000 miles, I'm definitely not doing any internal motor mods

With that being said,
What's the best clutch for a basically stock LS1

Thanks,
Rob

JimMueller

iTrader: (9)

If I had a LS1 under ~450rwtq that I didn't race, I'd opt for the GM LS7 clutch (if it's still available), with a Tick adjustable master cylinder in the OEM bore size. The clutch is heavier so the RPMs won't climb (or fall) as fast as a lighter clutch. If you want it a little snappier, look into the matching 13lb Fidanza flywheel. $0.02

wssix99

iTrader: (5)

If you are going to engage in spirited driving, you should read up on the Tick Master Cylinder. You'll want to upgrade the M/C or do the drill mod (at least) if you are going to upgrade the clutch and push the car a little harder.

Luk makes the GM clutch kits. Before I sold my car, I had a Tick M/C and the Luk LS7 Clutch/Flywheel/ Pressure Plate/Throwout Bearing/Pilot Bearing Kit 04-905. I liked it very much. The setup was very stout, enough to spin the tires without any complaints and enough strength to hold up for a few runs at the drag strip. Unfortunately a driver who drove the car at a drag strip after I sold the car, couldn't hold on and ran it into the wall. The car didn't survive, but the clutch performed fabulously.

If you are going to use this as a daily driver, you might be a little cautious. The stronger clutch and performance M/C takes a little more pressure to push in. Its not bad for long drives, but all day in stop-and-go driving can be tiring.

the_merv

iTrader: (88)

Yup the Luk LS7 Clutch Kit would be fine. Drill mod on the stock Clutch line at a minimum, that and a skip shift delete is a must with all the GM 6spd stuff.

The previous owner of my C5Z06 had a new Clutch, PP, FW put in and it's the Luk LS7 kit, been holding up fine. I did full bolt-ons and tuned it, but it's a 3085lb car so that helps.

I have a Cammed 6.0l in my Monte Carlo SS, and it's healthy. Built T56 in it as well, had the Luk LS7 Clutch Kit in it and absolutely killed it on street tires at the local 1/8 mile track. Got one launch out of it at a 1.93 60ft and it was slipping a little, tried for a second pass and just hit limiter. 3500lb car with 3.89 gears in it, but it makes power.

rll2

iTrader: (8)

Gonna show how little I know about the LS7 clutch kit
I've looked up the 04-905 LS7 clutch kit
I get (2) different kits
The one says it's for a Corvette and comes with a combination slave cylinder / throwout bearing
The other does NOT have a slave cylinder at all, but does come with a throwout bearing
Is one a upgrade over the other
Or is the Corvette kit just that, only for a Corvette

Thanks,
Rob

Rich-L79

The LS7 clutch is heavy (thus slower) and doesn't stand up well to any amount of serious abuse.

Monster clutches like their Series S would be a great choice. You can opt for an even more lightweight flywheel if you like the the normal kit comes with a stock weight flywheel.

Be sure to replace the slave and pilot bearing and do yourself a favor and install a remote speed bleeder line while you are in there. If you shim the slave properly you don't need a Tick MC. Always measure for proper shimming regardless of what clutch you use!

SPLATT

iTrader: (1)

I just did a Monster S twin disk and a Tick MC in mine with all new hydraulic parts. I love the setup, it's very grippy, and although it takes more effort to modulate than stock, It isn't bad. I got used to it in just a couple drives. I can't wait to really be able to beat on it

LS1Formulation

iTrader: (13)

I put a Spec 3 in my SS and I love it. Great clutch at a cheap price, with headroom for more mods if I want.

Scarebird

I have had good experience with McLeod clutches and pressure plates.

wannafbody

iTrader: (2)

Diamond from Texas Drivetrain Performance is another good choice.