16v and 20v hg the same??

[FAST EDDIE]

ive put them up agains eachother and they look the same are there any differences??

[Sam-Q]

subtle but yes very different in function, do not swap!

[FAST EDDIE]

thats whack i got a spare 16v trd gasket, oh well have to get a new cometic i guess

[Sam-Q]

16V trd gaskets sell easy enough. Just order another trd one for a 20V through Green line

[FAST EDDIE]

my engine builder uses cometics so thats the way ill go cheers!!!

[H8CHIR6KU]

you can also get a new trd 2v one thru toyota easy enough

[Jonny Rochester]

TRD prices thru Toyota Australia are ridiculous, (meaning they are high!),

[H8CHIR6KU]

i didnt think 115+ was too bad for a metal headgasket

[blair]

i payed 100 each from japland?

and i'm using a 16v gasket for a 20v block and 16v head...

Sam -> have you seen any REAL WORLD problems from using the wrong one?

[redsprinter]

stupid question ... but arent all 4ag blocks the same, hence why they are interchangeable .. ???

[Sam-Q]

i payed 100 each from japland?

and i'm using a 16v gasket for a 20v block and 16v head...

Sam -> have you seen any REAL WORLD problems from using the wrong one?

nup nothin, unless you have have a way for me to measure the temperature around the coolant jackets inside the head cavity then I can show hard numbers, it's a pretty simple theory though why it's a bad idea, see below.


redsprinter: this is exactly what I had wondered about for a long time. However the difference is that the water on all 4a engines comes from the block at the front but then depending on which head you get the water goes different ways. On a 4age 16V the water outlet in the head is at the front so the gasket has less/smaller water hole oppenings at that end and some bigger holes at the back. The oppersite is true for 20V/4afe/7afe gaskets. This stagered arangement allows for even water flow and even cooling. By fitting a 20V gasket to a 16V your encouraging the water to come into the block, straight up and out of the head without flowing around the block as much. Sure the different wouldn't be big but it's a chance I wouldn't want to take.

[FAST EDDIE]

ive held em up together and the one i pulle dout adn the trd one i have are identical?

[Slimer86]

ive held em up together and the one i pulle dout adn the trd one i have are identical?

Nope, nothing the TRD gaskets are similar but very different in the cooling jacket paths.
With either an oil return or coolant hole in the 20v gasket near the 1st or 4th cylinder in open air when overlain above a TRD 16v gasket
There also appears to be greater coolant direction around the perimeter of the cylinder holes cyl. 1 or 4.

[FAST EDDIE]

well spoke to engine builder tonight and he says itl work ill tell you how it goes!!

[Sam-Q]

I agree with Lucifier I had both in my hand 2 weeks ago and noted the difference. Sounds like you have a 16V gasket.

So Eddie on what basis did he make that choice? did he compare the two gaskets and decide it was identical?

[FAST EDDIE]

on a nother note i saw u have new front water outlets sam i want one of those!!!

[Sam-Q]

well you will have to contact me, I actually have 3 and only advertise one