Hey all-
I'm thinking about doing a B20A5/VTEC using the block off of a Prelude 2.0 Si. Is there any thing about the B20A5 block that would make it more difficult to do a B20/VTEC conversion? The reason why I'm asking is that I can obtain a B20A5 block for cheap. Thanks.

 

I don't think you can use that block. It's the bastard chilkd of the B-series, and I'm sure it's totally different.

 

this should be all you need to know..

http://www.ludespeed.com/products/prelude/articles/vtec/

 

thanks for the info, kyle. so would i be better of using a b18a/b block and boring it out to 2 liters?

 

definitely, the old prelude b20/b21's are not one of honda's better designs.

go with a gsr block.