4AGE rods/pistons - need confirmation

[AE092]

Hi guys,
Have done my homework but need someone who knows more about this to confirm. Does this 4AGE piston/rod combo look like late Big Port/Early Small Port ones'?



I've taken a look at this comparo photo and they seem right:




If they are indeed right, then..
Can I use them in my Small Port 4AGE with no issues? The wrist pins and bearing sizes look identical, only difference being the extra width and the lighter weight. Car in question is a Toyota Corolla SX and I assume I've got the Silver-Top 20v pistons/rods.

Any help/opinions would be great!

[beerhead]

Same dimensions, but change of mass means you should have your rotating assembly rebalanced.

[jdm86gtz]

Look like a small port as it looks like the piston is notched for oil squirters. Take a picture of the piston crown.

[CHB]

Not wanting to hi jack this thread but how much a machine shop normally charge for balancing the rotating assembly?

[AE092]

Not wanting to hi jack this thread but how much a machine shop normally charge for balancing the rotating assembly?

Good question, I wouldn't mind knowing that either

Sorry jdm86gtz, I don't have a pic of the piston crown

[trdee]

yes its fine to use trung. just get it balanced like everyone says. the only time you will have a compatibility issue is if you try to use bluetop 40mm rods with a later crank or vice versa, the rest are all interchangable