Hey ya'll, I have a pair of what appear to be JDM flat top EA71 pistons new in the box that I got from Honduras, they are stamped with a 25 on the piston top, and the box says .25 on it. They are factory Subaru parts, Im assuming the numbers mean they are .25 mm oversize? If anyone can confirm or deny this that would be a great help.

 

I also have USDM pistons new in box that have 50 stamped on them.

 

If anyone has another pair of flat tops with 25 stamped on them for EA71, let me know, we can work out a deal.

 

 

Also, I have a full set of standard size EA71 piston rings, will these work on the pistons if they are .25 mm oversize?

Thanks!

 

-Bill

The rings will need to match the pistons.

 

25 over was the largest oversize subaru offered IIRC.

Hmm, well the USDM pistons say 50 on them... Ill take some pics, this is the stuff I got from Loyal 2.7 Turbo a little while back. I just wanna know what I have so I can put together a matching set for my new motor project

 

-Bill

Hmm, well the USDM pistons say 50 on them...

 

Yes, Maybe here in our Latin American Market, Subaru Offered such Size...

Kind Regards.