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Old 10-20-2002, 07:37 AM
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Talking 400 SBC Balancing and info ?

Hello all , I am new to the board and I am looking for info related to the above. I currantly have a 1949 Chevy truck in progress, a 1951 Chevy Deluxe 2 dr coupe, a 1972 GMC Jimmy convert.
Q= I am looking for info on a 400 SBC balancing, I have a 400 SBC that I used as a power plant in another ride and now would like to use it again but convert it from Automatic to a 4 spd. What flywheel do I use?
The 400 SBC is balanced at the flywheel ? Correct?
I would also like to go all roller with this engine, does anyone know who produces a entire roller kit ?
I mainly deal in old power and the 400 is kinda new to me.
Thanks for the info
Brother Bob

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Old 10-20-2002, 04:35 PM
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yes you will need a 400 eternal fly wheel they are different than the 454 and are pricy and hard to find an alternative is to buy a spacer weight that goes between the flywheel and the crank that simulates the imbalance you can get them from$15-30.00 depending who you get it from.
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Old 10-20-2002, 04:39 PM
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the spacer piece lets you use a 350 or neutral balance flywheel. most cam grinders can set you up with full roller setup.
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Old 10-21-2002, 05:47 AM
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Thanks Bob!
I found a couple that I can order but they are pricey.
Q= the ones I have found are 14 " and all the clutch kits seem to be 10.5 " standard, will this work with a Saginaw 4 spd ? Different bell housing ? I did not see the balancing weight ? That would allow me to use 350 stuff and make things much easier, info ?
Thanks again,
Bob <img src="graemlins/crash.gif" border="0" alt="[crash]" />
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Old 10-21-2002, 06:21 AM
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if you go with the 350 flyweal you will have to use a 350 harmonic balencer and get the whole thing internaly balanced. It just coast me $400 and i was abel to get away without heavy metal, buying the 400 flyweal might be chaeper.
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Old 10-21-2002, 06:22 AM
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if you go with the 350 flyweal you will have to use a 350 harmonic balencer and get the whole thing internaly balanced. It just coast me $400 and i was abel to get away without heavy metal, buying the 400 flyweal might be chaeper.
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Old 10-21-2002, 07:46 PM
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brobob speedway in nebraska has the balance plates, you still need the 400 front balancer with this setup. chevy made two different size belhousings large bell will take a 12" clutch most street cars use 10 1/2" or 11" setup the small only uses 10"-10 1/2" clutch. count your flywheel ring gear teeth.the two different flywheels take a different starter, make sure your tooth count is the same.
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Old 10-23-2002, 05:08 PM
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Thanks again Bob,
Advice taken, I will purchase a 350 flywheel and the balancer plate . I am collecting parts for this build up and as soon as some of my other rides sell this one will get 100 % of my attention.
Dont guess we can post pics here? I would show you what she looks like. <img src="graemlins/crash.gif" border="0" alt="[crash]" />
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Old 10-31-2002, 04:44 PM
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You can post pics. Hit your paofile icon and it tells you how touplosd and add them to your album.
Listen to BOBCRMAN@aol.com he knows what hes talking about.
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