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View Poll Results: what clutch combo
aluminum flywheel w/ls7 clutch
63.64%
steel flywheel w/ls7 clutch
18.18%
aluminum flywheel w/spec stage 3
9.09%
steel flywheel w/spec stage 3
9.09%
Voters: 11. You may not vote on this poll

Any Aluminum flywheel for the ls7 clutch?

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Old 01-25-2006, 07:06 PM
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Another FYI:

I called TByrne to order a SPEC LS2 billet steel flywheel. They informed me that SPEC says their billet steel flywheel will only work with their clutches. The billet alum. flywheel will work with other clutches.
Old 01-26-2006, 10:38 PM
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13lbs for the fidanza aluminum LS2 according to Gripforce
.5lbs over the LS1 alum.
These LS7 clutches seem a good alternative. I'd like to hear more on how well they bite as compared to somethin like a SPEC 3
Old 01-31-2006, 05:52 PM
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Those that are using the LS7 clutch in an F-body - should I still use an adjustable master with this, or can I switch back to a new OEM master?

I want the clutch/brake pedals at the same height for road racing. When they are near the same height, the friction point was too close to the floor for my liking. If an OEM master would fix that issue and be reliable with the LS7 clutch, then I'll switch.
Old 01-31-2006, 08:28 PM
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if you buy a ls7 clutch from a dealership and say a "fidanza" flywheel do you have to have everything balanced? also what about bolts? can you use the old ones or can you buy a gm or maybe an arp bolt package?
Old 01-31-2006, 09:05 PM
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I was planning on having them balanced assuming it's not an outrageous price, just for peace of mind. I've read nothing about buying new bolts, but I don't believe there's any harm in buying OEM replacements or ARP's as long as you use the appropriate torque figure, the correct length, and use at least blue thread locking compound.
Old 01-31-2006, 09:57 PM
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did anyone else have their ls7 clutch and flywheel balanced?
Old 02-01-2006, 07:09 AM
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I'm still contemplating whether or not to balance. The Fidanza wheel is CNC machined (I assume on a lathe), so it's unlikely to be unbalanced. The Fidanza instructions say as much. But that's not to say that the clutch parts are in balance. I'm sure GM ensures they are balanced, but to within some wide factory range.

Either way, the new setup without additional balancing must be better than the stock one I'm replacing.
Old 02-01-2006, 07:33 AM
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Originally Posted by Okie02
if you buy a ls7 clutch from a dealership and say a "fidanza" flywheel do you have to have everything balanced? also what about bolts? can you use the old ones or can you buy a gm or maybe an arp bolt package?
I just bolted it up, no balancing. The LS7 flywheel bolts and the fidanza FW didnt work together. Used a longer ARP bolt and blue loc-tite so the wil not back out.

Jim
Old 02-01-2006, 09:35 AM
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Jimmyz: Which ARP bolt part number and quantity did you buy?
Old 02-01-2006, 09:44 AM
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Originally Posted by JimMueller
Jimmyz: Which ARP bolt part number and quantity did you buy?
I knew you were goona ask...I tried to find it already and cant. Call LS1Speed.com and ask them.
Old 02-01-2006, 05:57 PM
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Originally Posted by JimMueller
Jimmyz: Which ARP bolt part number and quantity did you buy?
hey i found the par numbers.. for the pressure plate bolts 134-2201
for the flywheel bolts 330-2802 these came off of arp-bolts.com these are the part numbers that were specific for ls1's which i am assuming jimmyz used? also they have these bolts on thunderracing.com for pretty cheap
Old 02-21-2006, 08:08 AM
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Originally Posted by Okie02
hey i found the par numbers.. for the pressure plate bolts 134-2201
for the flywheel bolts 330-2802 these came off of arp-bolts.com these are the part numbers that were specific for ls1's which i am assuming jimmyz used? also they have these bolts on thunderracing.com for pretty cheap
JimmyZ said that his stock LS1 bolts wouldn't work with the LS2 flywheel and he had to use others. It's not clear whether these were LS2 flywheel bolts or something altogether different.
Old 02-21-2006, 08:31 AM
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Altogether different bolts for the flywheel and pressure plate. Use the ARP bolts and youre golden.

Jim
Old 02-21-2006, 08:32 AM
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i've reused the stock bolts for my ls2 flywheel and the ls7 clutch. they bolt up fine. I haven't ran the car yet cuz i was waiting till my tranny gets back from the performance shop. the car should be ready today. I'll post back up later today
Old 02-21-2006, 11:19 AM
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Originally Posted by NoGamesLS1
The stock ls1 fw is 28-29lbs
Billet is 18ish
Aluminum is 12.5
and the tex. flywheel is 8.
Old 03-13-2009, 07:39 AM
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balancing will cost $85-100.00. Since I had my motor fully balanced, seemed a shame not to do the PP and FW.
Old 03-13-2009, 10:42 AM
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LS7 clutch here, seems to work great but it only has maybe 45 miles on it. I had everything balanced before I installed it.



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