4AGZE pistons

[rb24gtst]

Hey guys,

New here and lookign for some answers that even toyota cant tell me.

I am looking at getting some pistons from a 4agze from Toyota, but theres 4 different series of them all the same part number but end in different numbers -- 01 02 03, I need the forged ones with the the cir-clip that would suit a nissane RB20.

Yes i am looking at stroking and boring it out to a 2.4ltr, so i am asking the experts which pistons / toyota part numbers do i need

Cheers

[biggo]

from memory, there was a thread on toymods *cough*

I think there were only 2 different types of pistons, reguardless of part numbers, the ones you want are the later ones. Altho, rumour has it aw11 pistons have bigger oil ring lands, and you know what that means.......

[rb24gtst]

Any rough ideas where on toymods?

actualy 4 types lol there the product codes 000000, 000000-01, 000000-02, 000000-3

and toyota doesnt know which is which lol

i figured i needed the ones from the 91 - 95 model, or the 90 - 91

[biggo]

NFI where hehe, you could try searching "4agze"



anyway, im not sure toyota acutally forged them. It was somthing like semi forged crematic coated etc etc

[rb24gtst]

as far as i could find went liek this

first lot:

Semi-forged

second lot:

forged and coated

thrid lot:

Forged, lightened, circlip

[biggo]

ahh i see...

ill start having a look for ya then, but wouldnt you want the lower comp ones?

Also, nice project, how far have you come?

[rb24gtst]

um, so far

Stripped complete rb20 down to a pile of bits

block has been bored to 82mm, and bottem end machined to allow for more conrod bolt head clearence

Have the rb26 rods, and crank ready to go in, about ot send head off to headsense to be full ported and polished, i have a set of hks 264 cams and Cam gears on there way from japan

and thats about all so far

[biggo]

still reading this......very interesting

[rb24gtst]

Everything i have read says these are 81mm, so they will suit a 82mm bore?

i have no idea hwich pistons i need, i know that it shouldnt matter as these pistons will sit down 2mm fro mthe top of the block anyway lowering the compression a fair bit

[terryo]

I can help you but contact me at work. .
NOne of the stock Toyota pistons will suit what you are doing. I build engines like this for a living.
Terry