that is mls gasket 2mm with cooper rings need no machine for the block ..are they good for high boost ?anyone tyied ?

 

...i have one in my escos..the rings are stainless steel..so far ok..before i had similar Italian Nava sport cylinder head gasket but couldnt get one so i have ordered this one..much more expensive than Nava..

 

is true that not need to machine the block ?

 

Yes..it is..as the rings with their edge bite in head..As above use to have Nava gasket but couldt get it so i am using this now..

 

'proper ' head gaskets are Ł130 on eBay

 

thanks mate very helpful

 

i bought cometic 2mm mls and failed in 300 miles . look for a betetr gasket ..spec are t34 greys 1.9 bar boost

 

i need fit 2mm gasket only for a very skim head ..so i need something strong .ebay has cometic gasket 2mm .poor quality i think

 

https://www.ebay.co.uk/itm/COSWORTH-...MAAOSwe-heZpHW

 

that is a 1.4 mm i look for 2.mm

 

why?

if you're fitting a metal gasket you require a perfectly flat block and that means you need the engine in bits to machine it.

when it's in bits machine the pistons with pockets if you're concerned about valve/piston contact, face a little of the top of the piston if you're worried about piston / head contact or compression ratio.

 

I have a 200 block, machined to take wire rings at the top, group A spec head, group A head gasket, pocketed low comp pistons, run 2 bar boost at 450 bhp and have done nearly 60k miles with no issues. Old school way but it still works.

 

i hear from owners the group a gasket is fine.. the cometic gasket dont last many miles ...also i hear from mechanics generaly when a gasket is thick like 2mm and above is risk on big power ..they failed easy ..