TRD Headgasket Bore size

[BZR4AGE]

Anyone knows the bore size for the TRD headgasket for AE111 is? is it 82.5? I did a search on the net and also TRD japan website, but can't seem to find the bore size. Thx guys

[BZR4AGE]

no body knows??
Mr revhead???? anyone?

[ROBODISCO_20v]

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

Looks like trd only do the one size.

http://www.todaracing.com/products/toyo ... asket.html

Same with TODA & its 82.5

[suberimakuri]

if you want 83mm you need to go cometic from usa.

[BZR4AGE]

Yea i need something like 82.5, because my new pistons are 82mm. I know the TODA one is 82.5, but was wondering if the TRD one is too. becoz TRD one is much cheaper than TODA. but from tht link you gave me, it does not specifically say the size of the headgasket, it only says the size for piston rings etc. On the website,
Basic specifications
Valve guide outer dia.
9.7　 +0.049
(mm) Head side hole dia.
+0.045
9.7　 +0.001
(mm) Secure width(mm)
-0.021
0.044-0.070

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

and i know both are 0.8mm thick. if someone knows, can someone translate the above numbers into simple terms with me.... sorry i am a bit dumb

[Mr Revhead]

ill measure one up for you tomorrow if you want an exact bore size.
iirc the are fine for 82.5 but not for 83mm

[suberimakuri]

hmm.. that's strange.. i had trd gasket with my 88mm bore pistons.

[BZR4AGE]

Thx Mr.Revhead. Can you plz do that. because i am trying to find a good headgasket for my TODA pistons which are 82mm bore size. i would have bought the TODA headgasket, but they are 3 times thr price of TRD ones. If the TRD one will fit the 82mm bore size, i might as well get the TRD one as both are same thickness (0.8mm)

[suberimakuri]

trd fits. 82.5mm bore.

Revhead has great price on them, send him email as per the sticky post at the top of the tech section.

[Mr Revhead]

hehe cheer, but its at the top of the parts for sale section

[ROBODISCO_20v]

Hey BZR4AGE how much did your TODA pistone set you back? These guys have them at really reasonable prices http://www.greenline.jp

[BZR4AGE]

I bought it direct from Japan TODA, so is the same as TODA's website price with no mark up and stuff so is pretty good.

[pc]

My TRD one is 82.5mm (measured recently when working out volumes)

[Mr Revhead]

yep they is 82.5mm

[BZR4AGE]

thx guys. I bought one already. Cheers for taking the effort to measure for my PC and MR.Revhead. Me now just waiting for a full engine gasket set for my engine and i am away!