Headgasket 4AGE 20 Valve

[opticalblue]

hey whats the best headgasket to use for a 4AGE 20 Valve Turbo with forged pistons

[Bazda]

depends what compression you want.
So measure the cc of the head chamber, measure the cc of the piston at tdc if there is anything there to measure or it could be sitting flat, and take into account how many cc's the head gasket will take up, eg measure the head gasket diameter and times that by how thick ur head gasket is, standard is 1.2mm, you can get either a 0.8 or 0.5mm metal one from TRD.
then search the net for a engine compression calculator and you put those figures into it.

[Mr Revhead]

fyi 20v TRD gasket is only avail in 0.8mm

[Bazda]

fyi 20v TRD gasket is only avail in 0.8mm

how did i get a 0.5mm one.....

[Mr Revhead]

itll be a 16v one

[vvega]

um no its not
16v ones have a very differnt water hole setup
v

[matt dunn]

maybe they sold it to you as a 0.5 when it was a 0.8?


I use a standard genuine item in mine.

Matt

[vvega]

ill have to tri to remeber who i got it thoughpritty sure it was tnz
hell i might have still got the package somewhere

BTW i belive that bazz would have measured it when doing his compression ratio

v

[Mr Revhead]

has it still got the rivets holding it together?
some ppl seperate the sheets making it thinner


http://trdparts.jp/english/parts_engine-4a-g20.html

[opticalblue]

going abit off topic guys... so anymore suggestions...

[Grrrrrrr!]

The suggestion by Bazda is the right one... figure out what thickness you need to get the compression you want then find a reputable supplier that makes them in that thickness... (Like Toyota Genuine or TRD )

Or just get the TRD one and machine the head/pistons to get the compression you want.