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02-17-2019, 06:56 PM
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#1 |
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Registered User
Join Date: Apr 2008
Location: Somerset, Kentucky
Posts: 233
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Need help switching from automatic to standard
I have a 72 with a 350/350 setup going to switch to 454 and a 4 speed muncie but the 454 has a flex plate and the car I'm getting the muncie from is a small block.... My question is when I get a flywheel can I have it balanced to match ? Or should I do something else?? Any suggestions is greatly appreciated..... Thanks in advance...
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It's been a long time coming... It's time to get it done.. 
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02-17-2019, 07:14 PM
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#2 |
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Registered User
Join Date: Mar 2013
Location: East TN.
Posts: 371
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Re: Need help switching from automatic to standard
A 454 BBC and 400 SBC is externally balanced. 350 and the rest are internally balanced. You will have to buy a 454 specific flywheel or you will make serious balance problems. They have a large long weight cast into them. Just an fyi... The balancers are also different
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1972 k10 Custom 10 Deluxe, short bed 4x4, 454, 4 speed (Sold) 1985 K30 Dump Truck 1986 Jeep CJ-7 1955 2 door 210 post |
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02-21-2019, 07:00 AM
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#3 |
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Registered User
Join Date: Apr 2008
Location: Somerset, Kentucky
Posts: 233
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Re: Need help switching from automatic to standard
Ok but what I am really wanting to know is can I buy a new 454 flywheel and have it balanced to match the flexplate that is on the 454 now and just switch them out or will I have to have it rebalanced with all the internals at the machine shop??? basically I just really don't want to take it apart if I don't have to....lol
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It's been a long time coming... It's time to get it done..
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02-21-2019, 09:38 AM
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#4 |
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Senior Member
 
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,996
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Re: Need help switching from automatic to standard
You can just get the 454 flywheel and run it. The crankshaft should be drilled for the pilot bearing/bushing.
Check the bell housing casting number to see what diameter flywheel and clutch it is for and purchase accordingly.
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ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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02-22-2019, 05:37 PM
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#5 |
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Moderator
 
Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,204
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Re: Need help switching from automatic to standard
What year model is the 454?
See this link as it has all the info you will need...just ignore the popup ads etc.... https://www.chevydiy.com/how-to-sour...nd-flexplates/  Also...wondering why you want to swap in Muncie...I think a simpler route would be a stout TH400 or a 4L80e auto...just my opinion...
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Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox 
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02-23-2019, 08:37 PM
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#6 | |
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Registered User
Join Date: Apr 2008
Location: Somerset, Kentucky
Posts: 233
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Re: Need help switching from automatic to standard
Quote:
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