I have a 93 LT1 Z28 with 4.10s with headers and magna flow high flow cat & exhaust and thats really about it other than TB bypass and hurst short-throw.
And the clutch slipping. It came on quick too, within one day from when it started slipping its lost all acceleration and I'm afraid to even drive it to work should it completely die, and work is only a mile away. So its parked.

My question then is what clutch should I get?

Something cheap but that will hold a decent lifespan. Seeing as the car doesn't have much done to it right now I don't know if I will need a Stage 2 or just replace it with a stock clutch. What do you guys think?

I have heard a lot of discussion about LS1's and clutch replacement on this forum, but I don't know if there is much difference there or not as far as the clutch goes, so I figured I'd ask specifically about the 4th Gen LT1 Z28 and any recommendations you guys may have for my specific application.

I've never taken it to the track, and pretty sure the previous owner has not either, however I do eventually plan to take it to the track after I do a little more work to it probably a year or more away from now. So basically aggressive streetability for now but a clutch that may hold a little while with a few more simple mods in the near future.
Any help would be greatly appreciated.

 

IM in a similiar situations, Ls1 clutches will not work. A good streetable and upgrade from stock clutch for an lt1 is the Mcloed Single disc, or RAM HD clutch.

 

I reccomend a SPEC stage II. Their older clutches had some issues, but after their re-design, I think they are top notch. When compared to other clutches for performance vs money, they are great. Just my input.

 

Thanks guys. I'll look into those. It will probably be the end of the month before I make a decision, but I have a place to start now. Been on a bit of a tight budget lately, figures car trouble would show up now eh.

 

Spec Stage II. I recently put one of these in and there's absolutely ZERO chatter, nice light pedal feel, and a semi-quick engagement that's not harsh by any means. Great clutch for the mild setups.

 

spec stage 3 ceramic, blew out 4 rear ends with the clutch, took a major beating and still had tons of life left when i removed it. Didn't have any chatter after break in but the engagement was a little harsh.

 

stage 3 is a little more than I need I think and a little too pricey for me right now. Looking for something on a budget.
I found out today thru a local parts distributer that I can get a Centerforce I for $350. I haven't heard any discussion about Centerforce though. What do you guys think?
Its a stage 1...hence the budget, but its still a little stronger than stock, and I can afford it. But do you think I have too much done to my car for it to last long, as in do I really need a stage 2 or can I get away with a strong stage 1?
TB bypass, dynomaxx headers, magnaflow high-flow cat and cat-back exhaust, CAI, and 4.10 gears. Not much at all really. I would think the centerforce I will hold it, what do you guys think?
And how is that price compared to the Spec II, McCleod, and Ram HD mentioned in this thread, I can't seem to find prices on any of those online. But I do know the McCleod also requires me to purchase the master cylinder as well right? So thats probably out cuz of my monetary situation right now.
Oh and I've heard nothing but bad things about Spec clutches... but this is the first I've heard of a redesign on them, any info on those 2 things would be great as well.
Thanks

 

The McLeod single disk does NOT require the purchase of their adjustable master cylinder.

 

But I've heard there is some modification required ito the original cylinder if you do not purchase the adjustable cylinder, is that true? And I still can't find it for sale... all my internet searches come up with threads like this one on nearly every car related forum out there... but no stores.

And whats your opinion on the Centerforce? Or has anybody here ever used it?

 

I'll pass on what I've read on this and other forums as I'm researching the same topic... exactly... that you are.
I believe the twin disk McLeod setup requires the modification. The single disk is available in 2 strengths, the stronger of the 2 allows for shifts up to 7500 rpms I believe. (I saw one of these on ebay a couple of days ago). Most people are using this disk along with an lt1 clutch kit being purchased at Autozone. This kit apparently has a stronger pressure plate than stock.(like an lt4) The disk that comes in the kit is replaced by the McLeod disk. I think it totals around for $350 for everything. Do a search on McLeod clutches on yahoo to find a supplier for the disk.
I've read of problems with the centerforce clutches not disengaging properly after high rpm spirited driving. I'm sure it's not all of them but I have read this from a few different people.
The spec clutches have rec'd totally mixed reviews. Many complaints of "Chatter", springs breaking on the stage 3, and so on. Others praise spec clutches and say they wouldnt buy anything else, these people seem to see the track more than you or I would.
The McLeod twin disk is the only one that seems to get positve reviews from everyone but I also can't afford to drop $1100 on a clutch right now.
I'm thinking that I'll wind up going with the McLeod single disk for now and my mods are nearly identical to yours. My future plans include Heads and cam, nitrous, and an upgraded rearend at which point I'll wish I would have just gone with the twin disk to begin with. The money tree is uprooted for now though so the big mods are a year or 2 away anyhow.
I hope this helps. It seems the more I research this clutch topic the more confusing it gets!!!

 

I would never put a spec clutch in my car. I personally know 2 people that have had their spec clutches explode in their cars and the cars were totaled as a result of the debris tearing up the inside of the car and the frame. Luckily they didn't have their legs cut off or anything.

 

Nice info. Ya if I could afford it I'd go with the twin too, already got 4.10 gears and a 12 bolt rearend.
I think I may risk the centerforce for now unless I really start finding horror stories on it, becuz the only bad things I've heard about them so far seem like problems that could happen to any clutch if not properly installed or something like that. You know, normal problems, nothing like equipment failing like I've heard about the Spec clutches.
So if the centerforce can hold for 6 months to a year at least I wouldn't mind buying a new clutch that soon and I'll have the dough for a twin.
Think I can get that much life out of it? Cheapest slightly better than stock clutch I can find. $350 bucks. And I know a shop around here that I can probably get it installed cheap at, thats looking like my best bet, but I haven't gotten many opinions from the guys on this site so I dunno yet.

 

My opinion is your car sucks HAHA. jk. My bro just called me from the track, he ran a 13.9 on his slipping clutch, hopefully hes ordering one tomorrow for his car also.

 

Well I went with the RAM HDX clutch, and its not quite broken in yet, but so far I really like it. Kept the stock pedal feel which I like, and its a lot more aggressive than stock. A friend who's driven a full bolt-on with a Spec II and my car says they feel about the same to him. And everywhere I looked the Ram clutch kits were cheaper. I know its still gotta pass a couple more test before I make my final opinion, like handling a launch at 4500rpm, aggressive downshifting, or rather aggressive shifting at all, but so far it looks like I won't regret my decision to go with RAM clutches. A good cheap alternative to the Spec II or McLeod it seems for a bolt-on LT1.