Skip to content
View in the app

A better way to browse. Learn more.

Ultimate Subaru Message Board

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Cometic Frankenmotor gasket?

Featured Replies

Searched with no luck.

 

Anybody got the cometic part # for the gasket to put EJ22e heads onto the EJ25 block?

For ej25d & ej251block, 100mm bore x .051" thick, right?

 

I come up with C-4264-051. Let me know if that fits the bill because I'll need a pair for my project soon.

  • Author

For ej25d & ej251block, 100mm bore x .051" thick, right?

 

I come up with C-4264-051. Let me know if that fits the bill because I'll need a pair for my project soon.

 

NAh.....that still doesn't have the holes in the correct place for the water passages in the EJ22 heads.

 

There needs to be a hole dead center above the bores.  That gasket the holes are off to each side a bit around each bore.

  • 2 weeks later...
  • Author

Looks like those would still block the holes at the top of the chamber.  I'll post pics of what I mean.  Those gaskets don't match the 2.2 gaskets water holes.

I'll see if I can find mine and take a pic for you with them on the head.

  • Author

These ones actually look closer to what I want

 

http://www.maperformance.com/tomei-101mm-bore-head-gasket-subaru-sti-ej25-04-12-1.0mm-thick.html?_rfkwc=1

 

You can see clearly they have openings at the very bottom for the coolant passage that feeds the pocket between the exhaust valves.

This passage IMG_0436_zps2e63ac0f.jpg

 

And also there are passages as the top, which those STI gaskets have a kidney shaped opening that should also accomodate coolant making it to these areas.

 

IMG_0437_zps732cfbe9.jpg

IMG_0438_zpsa2fbf842.jpg

 

 

Remember in EJ engines, coolant is pushed out of the pump, into the area below each cylinder.  Then it passes through the gasket, into the lower head, up through it, and back past the gasket into the top portion of the block, and then up and out to the radiator.

 

So if the passages in the headgasket don't line up, it could SEVERELY restrict the flow of coolant around the entire engine.

  • 2 weeks later...

Funny, the custom Cometic page doesn't list .056" as an available thickness:

http://www.cometic.com/custom-gaskets.aspx

.051" would be fine though. If they're pricey I'm thinking we could try for a group buy(?) of H1631SPK051S in pairs.

 

I'm friendly with an auto machine shop down here, JMS(Johnson Machine Service). No promises but may have a connection through his shop. ;)

Edited by czny

Gloyale, are you ordering for yourself from there?

I contacted my friend Mike Johnson(JMS) about placing an order with Cometic for the H1631SPK051S & he said that Cometic doesn't really give a break on low volume orders, that he knows of. He has ordered directly from Cometic in the past & would be willing to try a larger order if we got enough people together for this gasket.

 

What do you say?

  • Author

I am month or 2 out from being ready to order.

 

Likely an after Christmas thing.

Likewise for my frankenmotor build time frame. 3 other projects in progress now here.

 

Least this will give some others time to speak up if interested.

  • 4 weeks later...

I'd also be interested in a set of H1631SPK051S if you guys are putting something together.

  • 4 months later...

If this is still a thing, I blew the head gasket on my 2.2, and found a frankenmotor "kit" to swap in. If this is still a thing, I'd love in.

 

Craig

Have requested a price & ETA for one set thru my friend. His response was that the order desk dropped the ball at Cometic. I keep going back to friend's shop to remind him to put a bug in their ears at Cometic.

 

Will keep at it. I need a set as well.

  • 2 weeks later...

And bugged the shop owner to bug Cometic again. C'mon, really?

 

Sales losing the order 3 times???

They are finally here!!

Part number H1631spk051s

...............................................

My friend Mike's comment was that now that the gaskets were ordered once it should be easier next time. 

His biggest beef was with the ordering desk - dropping the ball on a relatively easy order. People on the other end of the phone line arguing that the specific die number doesn't matter(??!!!!)

Edited by czny

More pics of Cometic gasket on a EJ22 cyl heads

.........................

Edited by czny

  • Author

More pics of Cometic gasket on a EJ22 cyl head('94)

IMG_6757_zpsa94ac5dc.jpgIMG_6759_zpsd5dd1036.jpgIMG_6760_zpsa9e32139.jpg

 

NOw that's What I'm Talkin about!!!  the water ports line up perfectly.  gotta order a few sets.....

NOw that's What I'm Talkin about!!!  the water ports line up perfectly.  gotta order a few sets.....

Be sure to specify loud & clear how you want them shipped.

They expedited my order after procrastinating since February - at a cost of $50 UPS Blue to me!! :eek::mad:

NOw that's What I'm Talkin about!!! the water ports line up perfectly. gotta order a few sets.....

They've had these since about '06, them getting the order right is the hard part.

  • Author

Yikes! Mine were $99 with free shipping on eBay.

 

I do not find that part on Ebay. Part number: H1631spk051s

 

Lots of other Cometic gaskets....but not those ones. 

 

You said you used H1631SPK040S.....which are not the same.......cooling holes in wrong place.

 

I'd love it if they were on ebay for $99.

Edited by Gloyale

They've had these since about '06, them getting the order right is the hard part.

Yeah, you look at that Die #222 pic & the revision states rivet position moved 6/2007.

 

Don't know if it'll make any difference in their ability to hear, but some feedback from my friend Mike is definitely going to the office.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.