153 vs. 168 flywheels - The 1947 - Present Chevrolet & GMC Truck Message Board Network

NitroMike · 02-12-2006, 02:42 PM

Hey guys, I believe that 250 inch L6 use 168 tooth flywheels. Just bought a high performance one on Ebay that is 153 tooth. Is this just an easy swap of starters to make it work? Any other issues to be aware of? Did 6 cylinders use both 153 or 168 at different times?
Thanks!!

Tx Firefighter · 02-12-2006, 02:45 PM

I've swapped both large and small flywheels onto my sixes over the years.

The flywheel is bolt on.

All you have to do is put a different nosecone onto your existing starter if you're using a block mounted starter.

70GMCer · 02-12-2006, 03:05 PM

I've did the same thing with the V8s

Tx Firefighter · 02-12-2006, 03:09 PM

I swapped my 292 from standard trans to auto trans a few weeks ago. I just used a flywheel I had laying around, which worked out as a 153 toother. I just swapped the old standard trans type of nosecone off the starter to a straight across 153 tooth style auto nosecone. It was like a 5 minute swap on the starter nosecone.

NitroMike · 02-12-2006, 06:04 PM

Thanks Tx. I'd take your 292 if I was a little closer. My truck came from Dallas. It hates the East. The body is rusting just sitting inside my garage!

02-12-2006, 02:42 PM	#1
NitroMike Active Member Join Date: Dec 2005 Location: Bethlehem, PA Posts: 346	153 vs. 168 flywheels Hey guys, I believe that 250 inch L6 use 168 tooth flywheels. Just bought a high performance one on Ebay that is 153 tooth. Is this just an easy swap of starters to make it work? Any other issues to be aware of? Did 6 cylinders use both 153 or 168 at different times? Thanks!! __________________ The older I get, the faster I was!!

02-12-2006, 02:45 PM	#2
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 153 vs. 168 flywheels I've swapped both large and small flywheels onto my sixes over the years. The flywheel is bolt on. All you have to do is put a different nosecone onto your existing starter if you're using a block mounted starter. __________________ I'm on the Instagram- @Gearhead_Kevin

02-12-2006, 03:05 PM	#3
70GMCer Senior Member Join Date: Apr 2005 Location: Joppa, Maryland Posts: 4,408	Re: 153 vs. 168 flywheels I've did the same thing with the V8s __________________ 1997 GMC Sierra Ext 1965 Mustang

02-12-2006, 03:09 PM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 153 vs. 168 flywheels I swapped my 292 from standard trans to auto trans a few weeks ago. I just used a flywheel I had laying around, which worked out as a 153 toother. I just swapped the old standard trans type of nosecone off the starter to a straight across 153 tooth style auto nosecone. It was like a 5 minute swap on the starter nosecone. Attached Images __________________ I'm on the Instagram- @Gearhead_Kevin

02-12-2006, 06:04 PM	#5
NitroMike Active Member Join Date: Dec 2005 Location: Bethlehem, PA Posts: 346	Re: 153 vs. 168 flywheels Thanks Tx. I'd take your 292 if I was a little closer. My truck came from Dallas. It hates the East. The body is rusting just sitting inside my garage! __________________ The older I get, the faster I was!!

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