the earlier prelude engines are NOT related to the B20's in CRVs. You're correct, B20's from CRV's are related to the B18B's found in 3rd Generation 94-01 Integra Non-Vtec models, so you can drop in any 94-01 B-series engine in the CRV, given you have the management and tuning to make it run correctly. You'll have to use the CRV transaxle.
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Last edited by Spec R; Dec 9, 2008 at 10:09 PM.