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big block/small block clutch dellimma: #293287 04/19/09 09:09 PM 04/19/09 09:09 PM
Joined: Nov 2004 Posts: 7,647 Houston Texas PAINT IT BLACK OP Got a CHIP on my shoulder
PAINT IT BLACK OP Got a CHIP on my shoulder Joined: Nov 2004 Posts: 7,647 Houston Texas	I have a 10.5" clutch/flywheel in the small block '70 Cuda. I have what I think must be a 11" clutch flywheel in the '70 383 Super Bee. If I went with an 18 spline OD gearset from Passon's, I would need at least a new clutch disk (18 v. 23 spline), maybe even a whole new assembly. Would I need a bigger flywheel? I am assuming the clutch from my Bee will not work in my Cuda as it stands because it is an 11". Am I right? In the Super Bee, if I decided to go with a Passon's OD unit, could I just swap the Centerforce disk for an 18 spline disk and not have to worry about the rest of the assembly (new)? It may seem like I am all over the place, but my wheels are turning.

Re: big block/small block clutch dellimma: [Re: PAINT IT BLACK] #293288 04/20/09 01:08 AM 04/20/09 01:08 AM
Joined: Mar 2003 Posts: 5,141 Las Vegas, NV Tom_440 master
Tom_440 master Joined: Mar 2003 Posts: 5,141 Las Vegas, NV	Pretty sure your 11" flywheel will not work in your small block bellhousing. Just use the 10.5" flywheel and clutch with an 18 spline trans. Of course, the 18 spline trans may have a larger input bearing retainer than your 23 spline trans so the 18 spline trans may not fit in your small block bell housing...

Re: big block/small block clutch dellimma: [Re: Tom_440] #293289 04/20/09 09:49 AM 04/20/09 09:49 AM
Joined: Nov 2004 Posts: 7,647 Houston Texas PAINT IT BLACK OP Got a CHIP on my shoulder
PAINT IT BLACK OP Got a CHIP on my shoulder Joined: Nov 2004 Posts: 7,647 Houston Texas	Quote: Pretty sure your 11" flywheel will not work in your small block bellhousing. Just use the 10.5" flywheel and clutch with an 18 spline trans. Of course, the 18 spline trans may have a larger input bearing retainer than your 23 spline trans so the 18 spline trans may not fit in your small block bell housing... He has an adapter for that.

Re: big block/small block clutch dellimma: [Re: PAINT IT BLACK] #293290 04/20/09 11:44 AM 04/20/09 11:44 AM
Joined: Apr 2003 Posts: 869 Sugarloaf, PA. USA J JamiePasson super stock
JamiePasson super stock J Joined: Apr 2003 Posts: 869 Sugarloaf, PA. USA	You just change the clutch disc and throwout bearing to the 18 spline. I recommend changing the pressure plate too because the disc usually gets "matched" to the plate after use. We can provide a 10.95" Mcleod clutch package for you that bolts to your small block 10.5" flywheel. We also would provide an 18 spline bearing retainer that will bolt to your small bearing transmission case to fit into your small block bellhousing. Jamie Passon Performance 309 Turkey Path Sugarloaf, PA 18249 (570) 401 8949 www.passonperformance.com

Re: big block/small block clutch dellimma: [Re: JamiePasson] #293291 04/20/09 11:55 AM 04/20/09 11:55 AM
Joined: Nov 2004 Posts: 7,647 Houston Texas PAINT IT BLACK OP Got a CHIP on my shoulder
PAINT IT BLACK OP Got a CHIP on my shoulder Joined: Nov 2004 Posts: 7,647 Houston Texas	Quote: You just change the clutch disc and throwout bearing to the 18 spline. I recommend changing the pressure plate too because the disc usually gets "matched" to the plate after use. We can provide a 10.95" Mcleod clutch package for you that bolts to your small block 10.5" flywheel. We also would provide an 18 spline bearing retainer that will bolt to your small bearing transmission case to fit into your small block bellhousing. Jamie Thanks Jamie. It killed me earlier this week after the months of waiting to decline one of the gear sets. It is just hard to justify two gear sets with all the economic uncertainty... and if it is between an OD gearset in the Cuda vs. the Bee, I am going to put one in the Bee. BUT... the Cuda needs a new clutch regardless, so it would be a good time to make the move with it. The bummer is that the Bee has a brand new clutch in it that I am just not going to need no matter how you look at it. I am still thinking on it.

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