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4G64 Block & 4G64 DOHC Head


Proven Member
Apr 28, 2008
Centralia, Illinois
Any 7 bolt 4g64 will work if you want to go that route. Be cautious that The 2000+ 4g64 in the Eclipse is not the same as prior blocks used in the earlier Eclipse. The same goes for the Galant, they started using a different design on the 4g64 block around 99 or so. I've mentioned it in my "4g63/4g64 swap" thread.

Yes you can use a 4g63 DOHC head on the block. If you use a 4g64 block from 95+ then you'll need to insert freeze plugs (or other means of sealing...) into the deck surface in 5 locations (also mentioned on my thread) because the DOHC head does not use these and you will have bad issues if you don't.


Proven Member
Sep 9, 2006
Vilnius, Europe
How should I know for sure which 4G64 block will fit in place of my 4G63 ? What are those differences?
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