Flywheel, clutch and pressure plate

[enio45]

On the topic of the flywheel - I discovered I have a flywheel part number ink stamp - 3973452 and it has a casting number 3973455. This came with the car and it is nos - is this a later one, still usable for the Z?

[Salvatore]

I don't recognize those numbers Ed.

[m22mike]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: enio45</div><div class="ubbcode-body">On the topic of the flywheel - I discovered I have a flywheel part number ink stamp - 3973452 and it has a casting number 3973455. This came with the car and it is nos - is this a later one, still usable for the Z? </div></div>

It might be OK, I will do some more checking.

It's called a Google search... [img]<<GRAEMLIN_URL>>/grin.gif[/img]

http://www.greenbayprop.com/content-prod...e_flywheel.html

[Salvatore]

Ed is Italian Mike. Give him a break!

[m22mike]

Hay Sammy, lighten up, I am Eddies offical goffer while I am out in this heat [img]<<GRAEMLIN_URL>>/cool.gif[/img]

Eddie , poke around in these books, I found one listing for 69 for all w/HD clutch, and some older Corvette apps.

http://www.gmpartswiki.com/gmpart?gmpartno=3973452

http://www.gmpartswiki.com/getpage?pageid=85225

Mike

[Salvatore]

I wish I was out there in the heat!

[Lynn]

Sachs is another option. Well made and I can't break the one I have behind the LT-1 in my Z, but then I don't have big tires on it.... yet.

[sixt9rsx33]

I would not resurface your old flywheel. I would recommend buying a new one. I know that resurfacing a flywheel is normal practice and usually works, but new flywheels are cheap.

I own two 69 Z's and a 67 Vette L-79, and a 67 Vette L-36. All have the LUK clutch kits except for one of the Z's. The LUK kits are good and inexpensive, but not as good as the center force clutch kit. When I replace another clutch I will use a center force kit. The CF clutch pedal is smoother, and I have had the springs on the LUK PP give me a little bit of a &quot;sticky&quot; pedal. It is hard to explain but once the PP gets warm the pedal is not as smooth when I engage the clutch. It is getting better now with some wear but like I said I would go with a Center Force kit.

[Salvatore]

I have had no clutch problems at all with the LUK. never had heating issues and never had chatter yet and I run big tires in the back. I ran Scheiffer, McCloud and Hays all my life with really no problems. I went to the LUK because of recommendations from guys here and to me it feels like a stock setup and I put at least 600-700 miles on it so far. Sometimes resurfacing your wheel does not get down to all the cracks that sometimes you can't see. I have a good clutch guy that owns a machine shop here in town and he spent some extra times cutting and cleaning my wheel. Unless you are drag racing consistently I see no problems at all with a &quot;good&quot; resurfaced wheel and a Luk clutch. Most problems I have seen in clutches is when the owners have a hard time driving their cars. Especially SB cars with high rear end gears like Z/28's. They are a pain to drive with 3.73's and down in my opinion especially if the car has a close ratio box in it.

[YENKO DEUCE REGISTRY]

We are putting a LUK clutch kit into Benjamin's '69 BB Nova, we had it balanced - and it (surprisingly) didn't need any weights added. I bought it because it was cheap, and I assume that any kid will burn up his first clutch until he/she gets the hang of it. So, I bought it as a 'disposable' unit, we'll see how it goes!

[img]<<GRAEMLIN_URL>>/grin.gif[/img]