Piston Dishing Questions and gasket suprise

[bratcop]

SeanyB, did you ever measure the thickness of your pistons after they were dished? I was wondering what you ended up with for a final thickness. Also, is that d-shape in the picture original? My pistons have a squished d shape, matching the combustion chamber more closely...If I go to that d shape, i will easily hit 22cc, but then lose some quench area. Anyone have an opinion on whether this is an advisable trade off? That is quench area for reduced compression?

Thanks Bratcop

[seanyb505]

I wish I had measured them before they were installed but I never did. Im not sure if that was the factory shape either, I bought them after they had already been dished out. Here is what Silvolite lists for them: http://www.kb-silvolite.com/spistons.ph ... ls&S_id=15 Not sure if the piston pictured is actually a 2229, but it looks similar. Mine look as though maybe the d was rounded out more.

[John]

Getting back to dish questions, a good photo here, viewtopic.php?f=5&t=273 And some good info as well as more on dishing, http://www.pirate4x4.com/forum/showthread.php?t=726753.
John

[RAPTORFAN85]

I got the same gasket kit as you. The victor reinz. It has the same gasket and I mic'ed it the same, about .038-.040

[bratcop]

Raptorfan, not to nitpick, but I think you listed your DCR and SCR backwards in your signature...or....How the hell did you get a static compression lower than your dynamic compression, I need to know how to do that...

[RAPTORFAN85]

Raptorfan, not to nitpick, but I think you listed your DCR and SCR backwards in your signature...or....How the hell did you get a static compression lower than your dynamic compression, I need to know how to do that...

Good eye...

[SilverXJ]

Do you have the part number on EngineTech gasket package?

While that gasket is most definitely not the Mopar Performance/Victor (that gasket isn't MLS) replacement everyone is having a hard time getting this seems like another option.

-Chris

[bratcop]

Chris, from what I understand about EngineTech...at any given time you could get a different gasket in their gasket kit...therefore, I believe the Victor number would be more useful. See the second photo I posted, the gasket number is blurry, but visible.

Joel

[RAPTORFAN85]

The number of the kit I have is 95-3568VR.
Its a Victor Reinz and I got it from carquest.
It was all sealed in shrinkwrap so I don't think they would swap out gaskets but I could be wrong...
It's listed for 1999- 4.0 grand cherokee and 2000-2001 4.0 everything else

[1bolt]

Definitely looks like the best option for high performance, tighter quench and higher compression... Remember in small block land, mid to low 10's compression ratio is still pump gas territory... There's no reason (besides perhaps piss poor quench and hot intake air from the lack of cross flow) that our I6 can't run in the same territory. That gasket allows the best quench to date. And being MLS is somewhat comparable to o-ringing in head gasket integrity.

[Mgardiner1]

Why couldn't this head gasket info been posted 3 months ago?! LOL oh well. If i ever need a head gasket, hopefully they will still be available!

[SilverXJ]

I asked Victor Reinz about the gasket and this was their reply:

54249S is a MLS and the only thing we have for this engine and is .042 crush

[Mgardiner1]

Victor must have put it back into production.... http://store.summitracing.com/partdetai ... toview=sku

I left mine on back order just for ha-ha's, and it got shipped yesterday. Its been on back order for 3 months. Now they have them in stock. Will measure and report back when i receive it

[SilverXJ]

The Jeep dealer just got mine two days ago after like 4 months of waiting, as with you I just left mine on order with them for shits and giggles. I canceled my order with summit about 2 weeks ago though.

[SilverXJ]

Victor must have put it back into production.... http://store.summitracing.com/partdetai ... toview=sku

I left mine on back order just for ha-ha's, and it got shipped yesterday. Its been on back order for 3 months. Now they have them in stock. Will measure and report back when i receive it

BTW, that gasket, the Mopar Performance is not the same as the one pictured in this thread. It is no MLS.