I called HKS USA today to see what the actual bore of their Evo head gasket is, but I didn't get a call back. Hopefully they'll call me tomorrow so I can get an idea of what HKS gasket people are refering to.

 

87mm in an 87mm is acceptable even if not prefered. The PE looks promising and will be the route I go most likely.

 

Anyone have a pic, location diagram, or specs on where they install the oil squirters? I'm slowing working on a similar build and wanta have them done but don't have a clue where they tap in at


Keep up the great work though... its been helping me plan my own build.

 

I'll post a pic tomorrow of the block. When looking at the bottom of the block there are flat casting spots at the corner of each cylinder. That is where they go.

 

This is what Simon Norris told me:

And I said I run the HKS gasket. But I am stock bore.

Only problem with the HKS gasket is that it costs $250. But my tuner Mark uses them on his 4G63 builds too so they must be good.

 

I measured one today at 86mm.

Mark

 

OK, so it looks like the Power Enterprises gasket is the only really good choice for an 87mm motor. Thanks for measuring.

 

Ohhhh, but what size gasket did you measure Mark? The 85mm one? How did you measure it?

 

The off the shelf one 86mm bost size.

Mark

 

Well I hate to go against my tuner But he must not have measured it right Anyway I'm sure Mark will come back on and we'll get to the bottom of this eventually.

I didn't build my engine, but I can confirm I did have to pull the head because of a leaking valve guide, and I did use an HKS 86mm gasket when I put the head back on, and I do use a 4G64 dohc timing belt, and do run a modified water pump etc so I'm pretty damn sure I'm on a 4G64 lol and 100% sure the HKS gasket I got was a off the shelf 86mm item.

So very strange.

 

I got the gasket kit today so now I can take the block to the machine shop tomorrow. I needed the head gasket so that I can figure out what ports on the block need to be blocked off. The first picture shows the 4 ports that need to be closed up. The second picture shows where the oil squirters are supposed to go.

 

BTW the stock gasket looks like it is the same bore as the block, but I didn't measure it. I just laid it on top of the block.

 

just checked out your build. looks like your doing the opposite of what im doing right now. im mating an EVO head to my 4G64 block on my galant and running an OEM EVO turbo setup

 

Sounds like a fun project. Good luck with your build.

 

Thanks mate....