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Old Jul 10, 2006 | 05:45 PM
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Simple Question?

Can someone please tell me if a '92 5.0L Thunderbird engine is same block as '76 302? Will it fit in place of 302 in '76 Bronco and bolt up to C-4 Transmission?
Thanks
 
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Old Jul 10, 2006 | 09:05 PM
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In that sense, yes. The bolt pattern is the same. The main difference is roller cam, which is a little different casting internally. Also, the '92 has an imbalance of 50 oz. while the '76 has a 28 oz. imbalance. That means you can't use the flexplate from the '76 on the '92 unless you have it (the flexplate) rebalanced. You'll need to find a 5.0 (not 351W) flexplate that's 1981 or newer to match the 50 oz. imbalance of your '92.
 
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Old Jul 11, 2006 | 06:25 AM
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Simple Question?

Will the Bronco C4 torque converter bolt to theTBird flex plate? If it won't, what car can I get the proper flex plate from?
 
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Old Jul 11, 2006 | 09:00 AM
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get a 302/AOD flexplate it will be the proper imbalance and should bolt up to your C4
 
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Old Jul 11, 2006 | 10:42 PM
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Simple Question?

Kemicalburns,

A 302/AOD flexplate?

I will be using the 5.0 engine and C4 trans.

So I should have 5.0/C4 flexplate no?

Does the 302/AOD flexplate have 50oz imbalance needed?
 
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Old Jul 11, 2006 | 11:25 PM
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That's correct. The AOD was readily available behind the post-'81/50 oz. imbalance 302 (or 5.0 if you will) and as Kemical says, shares the same torque converter bolt pattern with the C4 so it's the one you should look for. (A flexplate from a 351W won't work because it stayed with the 28 oz. imbalance throughout its life.)
 
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Old Jul 12, 2006 | 02:56 PM
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Thank you. I think I finally understand.
 
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