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Discussion Starter #21
The new Felpro leaks cylinder pressure as the one side went to all metal. The problem and why the MP gasket was made is material hardness and the ring with a paper type gasket. So the MP gasket was made softer to seal squish better and the combustion ring is stronger. BTW in Alaska the MP gasket was a stock replacement as they have bigger expansion and contraction problems. Also on the list is power levels on stretching bolts. The 10mm is weak, that combined with a rock hard Felpro will leak under boost, though won't pop. Copper spray and a Mopar gasket and bolt combo is best on a 10mm car. Again this is a kid doing in in a parking lot possible not in a shop. In a shop I'd get the 11mm studs and tap the block. If the engine has little ware, I'd pull it, hine it and over haul it and deck it. Then add a MLS that will be there for ever. Big one is cost, MP parts are expensive. So it isn't a big deal to get a Cometic if you go that far. Modest boost around 10 and the MP could be a 80K gasket. If the head is warped at all and you use a rock hard Felpro set it'll leak like a cracked head right away. Ive bought cars with a warped head. Added the MP gasket and studs and never leaked. As the studs are stronger than the head..... many ways to look at it, physical reasons people have different results. Mopar has been buying and packaging Felpro sets under the engine set. I believe you can get the 006 gasket still and drill the coolant holes in it if needed. 005 should have been the gasket design kept.....

Wow, first of all thanks for all the advice and help. I am putting together what I need to buy to get started on this
1. Chrysler Service Manual
https://www.ebay.com/itm/1984-Servic...oAAOSwZbRdWaYO
2. Mopar Gasket and Headbolts -
https://www.rearcounter.com/4105468-parts1308897.html
https://www.rearcounter.com/6500754-parts361971.html
3. Brushes to clean deck
https://www.3m.com/3M/en_US/company-...3223502&rt=rud
4.Copper spray

TOOLS - I am sure I am gonna miss lots here and maybe even some real obvious stuff but let me know lol :p
Socket set
Wrench set
Rubber Mallet
Metal bar to help with tougher bolts

This is what I have put together so far but let me know what I am missing, of course while I have everything out if I notice that timing belt or any hoses are looking real bad I would change them as well. Thanks all!
 

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Wow, first of all thanks for all the advice and help. I am putting together what I need to buy to get started on this
1. Chrysler Service Manual
https://www.ebay.com/itm/1984-Servic...oAAOSwZbRdWaYO
2. Mopar Gasket and Headbolts -
https://www.rearcounter.com/4105468-parts1308897.html
https://www.rearcounter.com/6500754-parts361971.html
3. Brushes to clean deck
https://www.3m.com/3M/en_US/company-...3223502&rt=rud
4.Copper spray

TOOLS - I am sure I am gonna miss lots here and maybe even some real obvious stuff but let me know lol :p
Socket set
Wrench set
Rubber Mallet
Metal bar to help with tougher bolts

This is what I have put together so far but let me know what I am missing, of course while I have everything out if I notice that timing belt or any hoses are looking real bad I would change them as well. Thanks all!
Make sure that your sockets & wrenches are 6 Point as the 12 point ones can round off the bolt heads & nuts.

Penetrant oil! Soak any rusty fasteners with this overnight and tap on them before loosening them. Be patient and apply more if needed. You DON'T want any broken bolts or studs to deal with. Not fun at all! :frown2:

Torque wrench. You get what you pay for. Avoid those cheap ones from Harb Frt!

Some baggies & a sharpie to label & keep the fasteners in. It'll make it easier when you reassemble. :smile2:

I'm sure our Resident Pros will add to the list...

Good luck & happy wrenching!
 

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Pope is correct, MP gasket with copper spray and if you clean down both mating surfaces extremely well you should never have a H/G issue again.

This is the only combo we use and has worked well at almost 40psi boost and 600WHP in the Charger and H/G jobs we've done 15 years ago on lesser street TD's are still going strong today.

Copper spray both sides of the gasket, usually 2-3 light coats so it goes on even until hiding (all copper color)

The copper will help fill imperfections in the deck surface as well as the head, but it's the deck surface that usually needs it the most.
 

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CORTECO 20032CS

Identical to the stock mopar gasket I'm seeing and 5 dollar close out on rockauto. Another really close one is ROL. Corteco literally looks like named Mopar
 
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