Was curious what brand and type of headgasket is most commonly used for All Motor Builds and what is the peak thickness you guys would run with stock sleeves and ARP Head Studs?

From a little reading it looks like anything more then 70k thick becomes more **** to leak and go bad?

I am pondering a H22 stroker but would require 70k thick headgasket. With the stock FRM sleeves with ARP Head Studs... a decent sized pro2 cam...

Is Cometic MLS the best option for stock sleeves? I know MLS is commonly used for turbo builds with sleeves which have the special O ring which my other setup runs...

 

FWIW I recently used a 0.060" Cometic MLS gasket on a 85x87.2 B-series that was switching from N/A to FI. So far no sealing problems and it is strictly a track car.

I have been using Cometic 0.030" on my 85x87.2 B-series since 2005.

Both these examples are sleeved, but I don't remember specifying that when ordering. If I were in your shoes, I would give cometic a shot.

If 0.070" does not work, you do have the option of machining deeper valve reliefs.

Good luck.

 

OEM or Golden Eagle's 'bored out' OEM gaskets are all I will ever use anymore... Too many issues with the Cometic gaskets leaking

 

theres nothing wrong w/ cometic gaskets, you prolly experiencing installer error lol

when using cometic or any other mls (multi layer steel) gasket you should ALWAYS take a look between each layer for excess leftover material from the machining process. use compressed air to blow through the gasket layers.

if you have a piece of metal in there its gonna leak, very simple.

golden eagle uses oem gaskets and modifies them. oem uses stricter quality control vs. any aftermarket brand obviously, so theres less chance of having excess material in those gaskets.

 

Thanks for the input

Yes deeper valve reliefs is also something I am considering but would also need to do bowl work if trying to compensate to a lot smaller thickness headgasket...

97mm crank and Rods
Type S pistons, valve relief work at most if any with the thicker headgasket. Type S piston would stick out .040. Additonal 30k needed for decent p2v, headgasket = 70k.
.070 Cometic MLS should still give me plenty of p2v clearance for an agressive cam such as pro2
Stock Sleeves

NAH2B, with the thicker 70k thick headgasket think there would be any needed valve relief work for some play with the Type S piston and with cam gears such as pro2 cam? I understand the Type S has less reliefs then jdm h22 and usdm h22...

 

Yeah, you must be right... I don't know what I'm doing building engines lol * rolls eyes *

 

i agree, your a much better retailer than engine builder haha