Do I need a thicker head gasket?

[Raider]

Machine shop is wrapping up the machining on my engine and head work.

.002 skimmed on head, .004 on the block.

Question is, do I need a thicker head gasket over just .006?

 

[Enki]

Only if there's going to be interference with the valves/pistons; honestly I'd take the extra compression. The builder can determine if that will be needed.

 

[Easter Bunny]

maybe



in all seriousness it depends on the style of piston that you are using and if is is significantly taller than stock, i seriously doubt that you will have an issue but it should be verified while the motor is taken apart

 

[Raider]

maybe



in all seriousness it depends on the style of piston that you are using and if is is significantly taller than stock, i seriously doubt that you will have an issue but it should be verified while the motor is taken apart

This is what I ordered. Nothing extreme.
https://www.pd-tuning.com/shop/mazd...reme-duty-88mm-0-20-bore-forged-dish-pistons/

 

[Easter Bunny]

it literally says extreme right in the product name!!!
still going with maybe, gonna just have to measure everything once it is in hand and then order a head gasket. or just order a thicker one and take the small compression hit.

 

[Raider]

it literally says extreme right in the product name!!!
still going with maybe, gonna just have to measure everything once it is in hand and then order a head gasket. or just order a thicker one and take the small compression hit.

Extreme duty. Like doodie. ha. Will look more when I get it all back. May just get a cometic .036" to be safe.

 

[Raider]

Edge Autosport had it in stock, and shipped it out today. .036 thicker so I am safe. https://edgeautosport.com/cometic-head-gasket-mazdaspeed-3-2007-2013-mazdaspeed-6-2006-2007/