cometic head gasket or group a?been told i need a group a one,(cometic will blow apparantly) as i have the arp long studd and bolt kit,does this sound right?don't want to buy the wrong one (sapphire cossie btw)

ta

 

what a load of bollocks cometic is stronger than a group a anyday so why would it blow?

what power are you running? if its 330bhp or under then group a will be fine so save the cash, if its over 330 then i would go commetic

 

cheers mate its got or had 397bhp,till a piston melted ,aiming for about 420 when its fixed(greys),thought it sounded a bit odd,asked him for a cometic head gasket to which he replied have you got a long stud arp kit,told him i had,and he then said i will need a group a gasket then?

load of bollocks then?

 

fit a wrc gasket if ya doing big bhp, there not cheep BUT there the best and failure at 420bhp aint cheep

but alot of people use commetic and have had good results

 

yeah thats what was on it,£330 a throw i think,best to stick with one of those then,do i re-use the current one or buy a new one now???

 

imo commetic is almost as good as wrc, loads of people have used them for 500bhp engines. only know of one person who has had a problem with a cometic

cometics are normally used with standard head bolts.....but i cant see a problem with using them with longstuds

 

buy a new one mate

there pricy but there proven

when i win the lottery ill be fitted a wrc gasket and as many stickers as i can get hold of so people know ive fitted one

try and sell ya old one on ebay though as there "ment" to be reusable

 

thanks guys,think i will go with the new wrc one,good thinking get it on ebay

 

The only problem with the Cometic is that you must make sure the blockdeck & the head is straight, otherwise you may have issues. The Grp A is more forgiving, but the Cometic has a better reputation among the hi-hp crowd.