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Just bought a stroker and have a head question


scottinalaska
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Galant VR-4 org Post #: 1242562 posted 05/14/18 02:52 AM     Remind Me!  Send Private Message   Edit Post      
He built this a few years ago and never finished assembly. He has no paperwork on it but a few notes. The bottom end has Arias stuff all together in the block (I'll post about that later. But the head with the 3 layer metal gasket is sure pretty. Apparently, he has some nice cams and titanium stuff up top and Kigggly (?) springs.
Are these raised rings around each cylinder normal? Usually, on bottoms of heads, it is all smooth. Just curious and hoping a bit of light could be shed on this "find."







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iceman69510 Galant VR4.org Moderator
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Galant VR-4 org Post #: 1242573 posted 05/14/18 11:14 AM     Remind Me!  Send Private Message   Edit Post      
Are there corresponding grooves in the block? Was this a start at O-ringing the head?



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slugsgomoo
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Galant VR-4 org Post #: 1242578 posted 05/14/18 01:13 PM     Remind Me!  Send Private Message   Edit Post      
Head looks like it's set up to be o-ringed. I want to say that you can run most any HG with the o-rings, but I usually seem to see people running composites with them.



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scottinalaska
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Galant VR-4 org Post #: 1242648 posted 05/20/18 12:29 AM     Remind Me!  Send Private Message   Edit Post      
The head has raised metal O-rings. The block, as pictured below has no corresponding grooves. There appears some faint marking like "maybe" there was some kind of grooving in the past. But it came with a Multiple layer metal gasket. It was a build from ten years ago that was NEVER run, just torqued down. The seller took the head off the block to inspect it since he bought it from an engineering student who had "too much money" and had dreams of building something amazing!
He had little info and the family was selling it since the student moved suddenly it was a "fire sale" we all wish we could walk into! More info: The head has 272 intake cam and 280 exhaust. Crank rods and pistons are Arias (sp?). Maybe the headgasket "absorbs" the head rings for a better seal. The head gasket IS missing the top metal layer right where the metal ring would sit down around each cylinder, so maybe it was designed that way. (see photos) I don't know. Any thoughts? Maybe this is how it is designed. I may just put it together with this same gasket since it wasn't heat cycled. But wanted some more experienced thoughts on it too.











Edited by scottinalaska (05/20/18 01:52 PM)

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donniekak
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Galant VR-4 org Post #: 1242673 posted 05/23/18 12:41 PM     Remind Me!  Send Private Message   Edit Post      
If you want to run those rings you need a composite gasket. If you want to run an mls you need to put copper wire in the grooves.

Posts: 745 | From: surprise az | Member Since: 01/01/09 | IP: (2601:548:c103:c4) | Report this post to a Moderator

tektic
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Galant VR-4 org Post #: 1242699 posted 05/25/18 09:19 AM     Remind Me!  Send Private Message   Edit Post      
What he said. Sound advice.

The block looks like it was run with a composite gasket as you can see the graphite residue and even the o-ring marks. Also the deck is probably not smooth enough for a metal shim gasket. I would run a graphite gasket with rings.


Edited by tektic (05/25/18 09:28 AM)

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scottinalaska
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Galant VR-4 org Post #: 1242908 posted 06/12/18 02:37 AM     Remind Me!  Send Private Message   Edit Post      
Donnie,
what do you mean put "copper wire" in the grooves if I wanted to run a metal gasket? I don't see what grooves I'd put it in, let alone copper wire.
Thanks.

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diambo4life
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Galant VR-4 org Post #: 1242910 posted 06/12/18 05:44 AM     Remind Me!  Send Private Message   Edit Post      
I say, buy a new MLS and install. Worst case scenario, it leaks then install a composite and save the MLS. Have the block decked fresh so it's nicely smooth and flat.



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Edited by diambo4life (06/12/18 05:46 AM)

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tektic
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Galant VR-4 org Post #: 1242932 posted 06/12/18 02:28 PM     Remind Me!  Send Private Message   Edit Post      
The big circles around the combustion chamber are not stock. Someone cut those to use o-rings.

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donniekak
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Galant VR-4 org Post #: 1242948 posted 06/13/18 12:13 PM     Remind Me!  Send Private Message   Edit Post   
Quoting scottinalaska:

Donnie,
what do you mean put "copper wire" in the grooves if I wanted to run a metal gasket? I don't see what grooves I'd put it in, let alone copper wire.
Thanks.




Pull the stainless wire out of the head and install .041 copper wire for a metal gasket.

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