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06-18-2003, 09:47 AM
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#1 |
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Senior Member
 Join Date: Jan 2001
Location: Northern Illinois
Posts: 516
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Flywheel question
I have a newish 350 crate motor (fits up to 85 I think) that I want to put into a 1969 K20 with a 4 speed so I need a flywheel and clutch, also need a new starter. Motor is presently in a C10 automatic so I don't have clutch etc. I see in the Summit catalog that they have 153 and 168 tooth flywheels and different diameter clutches. Is there anything to choose between the two flywheels ? Does that affect the size of clutch that I use ?
Thanks Bernie
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Bernie |
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06-18-2003, 10:58 AM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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I prefer the larger 168 tooth flywheel as you can get a larger clutch mounted to it and the larger diameter goes with the high torque starter. You can buy a good used flywheel and the originals come with different size clutch mounting holes in them already. I am not sure if new ones do or not.
If you are using the stock truck bell housing, then you will need the larger diameter flywheel to mate with the starter. Jim |
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06-18-2003, 11:01 AM
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#3 |
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Registered User
Join Date: Oct 2002
Location: Gilroy, CA
Posts: 1,454
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FYI
I have a flywheel, clutch and starter left over from when I did my manual to auto swap a few months back. Would love to sell them. Let me know if you are interested and I can get some pics.
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1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. " |
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06-18-2003, 01:56 PM
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#4 |
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Senior Member
Join Date: Jan 2001
Location: Northern Illinois
Posts: 516
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Thanks Jim. I think that I'll go for new stuff here. The clutch etc is easy to change now, but will be harder when everything is back together. thanks anyway
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Bernie |
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06-18-2003, 07:18 PM
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#5 |
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Registered User
Join Date: Mar 2003
Location: Stillwater MN
Posts: 1,166
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As long as we're on the subject...will the flywheel on my 350 work on a 396? I have the 465 / heavy duty clutch now.
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69 GMC K10 ..some restoration required....still.. 
Last edited by Class of 69; 06-18-2003 at 07:22 PM. |
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06-18-2003, 07:56 PM
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#6 |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Yes, a 350 flywheel will work on a 396. On the sb's,262, 265, 267,283, 305,307, 327, & 350 are internal balance. The BB's , 396,402, & 427 are internal balance & the flywheels are swapable(not sure thats a word
 ) the 454 BB, & the 400 sb are external balance, & have a weighted flywheel......they dont swap with ea other tho. crazyL
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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