SR-71

I am looking at this clutch disc as a replacement for my tired LuK.

ACT part number 6266320



Main features:

• SFI certified
• Spring hub
• Ceramic friction material: high heat tolerance, high coefficient of friction, and low wear rate
• Quicker shifting
• Higher torque and heat capacity than organic discs
• Reduces driveline shock, harsh engagement, and chatter
• Recommended for road and high power street applications

I have no need to replace the pressure plate or flywheel. I'm just looking for something with a higher coefficient of friction and longer wear. I know ceramic will wear the plate and flywheel faster, but I'm done with the dragstrip now. I just want something that will hold when I pedal down in 4th and 5th gears. The old LuK did fine until it got tired after only two years behind my 406 and several Test & Tune runs.

Has anybody used this one? Good? Bad?

blakecharles

I wanna know too. I been looking and the ACT and Diamond clutches seem to be the best bang for your buck. I also checked LS1tech and found little info on these (but some). The only thread where I found images of the street version are here

https://www.thirdgen.org/forums/ltx-...ld-swap-2.html

blakecharles

seems like both you and I are looking at the 6 puck version on this clutch. should be more aggressive (like an on/off switch with little to no play in the pedal), not only that... it should clamp hard, may not be what you want on the street. My stock LS1 clutch I can baby in and out of gears on the street... Don't think I will be able to do this with the ACT (but why would I want to).

Other then that and the fact that RICERS SWEAR BY THEM, I have found nothing. ACT is new to the chevy (LSX) game. There are a few shops that say "we sale them all day", but I have found few ppl that actually have it installed. I'm going to get one anyway...

Just cannot decide if I want the 6 puck or not.
What did you come up with??

SR-71

When I run E85, I'm pushing about 530 ft-lbs at the flywheel. My T5 is holding up fine, because I don't take it to the drags anymore. Same for my 10-bolt. No hard launches and only street tires. But the LuK clutch wore out quickly, and now it won't hold in the higher gears.

The LuK did hold quite well when it was fresh, so I'm thinking the pressure plate is just fine. I think.

I see this clutch disc as a good compromise. Higher coefficient of friction and puck style will make it hold better. Plus longer wear. Spring hub will take up some shock. It will shock the transmission more than the organic LuK did, but on the street, it should be fine. Again, I think.

I haven't gotten any more feedback on it anywhere. So I'm just going to go with what I know about clutch design and materials, and see how it works. Unless I hear something different, this disc is on my shopping list when the budget allows. Along with repairing my bass boat, I gotta do stuff paycheck by paycheck.

If this clutch disc does not work, then it will be cheaper and more reliable for me to build a 700-R4 for the engine's output. About $600 to do that. Building the T5 or a T56 to take the torque, plus upgrade the clutch to match, would run between 2000 and 3000 bucks. So I'm hoping this clutch will do what I want for the street. Otherwise it's an automatic swap.