These are a japanese copy (built under license) of a Lysholm 1200AX.
They can pump 2.2 Bar, and move 18 cubic metres of air per minute.
The rotors are made of a composite material, reducing their heat soak/conductivity. As well as the more efficient twin screw design (one male, and one female rotor) generates less heat, and draws less parasitic loss. (takes less power to drive)
All in all, these blowers are the shiz-nit.
I have one in the shed, destined for a CA18DET(Z) All the awesome of a Lysholm, or whipple, without the eye watering price tag.

How far over is your block mate?
Mine are .030 oversized. And they have the thermal barrier coated crowns, and lubrication coatred skirts too.
These were for a one day motor. But a mate just persuaded me to sell him that A14. So Mine are now surplus.
Might fit your engine?
These are a really nice strong piston. Compared to the bone china breakable A series ones, these will lap up the boost like a big thirsty dog!

These use the same 19mm press fit pins as the A14's do.
Depending on how tall the factory A14 deck height was, and how thick the head gasket is, you might get away with not skimming the top of the piston. However, if you needed to, these pistons have quite a tall thin squish band/dish. So there's plenty of scope to shave them down safely. In fact, the bowls are so large, I'd even recommend taking some off, and then having the block zero decked to suit.

I actually came one here to put up an add to sell my brand new set too, but I'll wait till the OP sells his first.

I have a chiming clock in my lounge which was a wedding present to my great grandparents from my great great uncle. my great uncle who gave it to me attached a type written letter inside the door on the back of it.
Saying to whom it was given, and by whom when. My great great uncle was later killed in action at Paschendale. The battle in which more kiwi's were killed that any other. the bloodiest day in NZ military history.
his sister (my great grandmother) subsequently had a nervous breakdown about it, and (as far as I know) was never the same again) My great uncle (her son) is still alive. (at 96) he still still speaks of how "Mother was gravely ill" when he was growing up. and how he was sent to live with an aunt.
I have more respect than most. read a book like Voices of Galipoli by Maurice Shadbolt, and get a real handle on what it was actually like.
I say, ask those young men, he's here's a day off. What're you going to do? They'd of gone to the pub most likely. So to honour them, we should get on the hammer.
As for conspiracy theories, how f-king blind are you?????!!!!
Do you know how much money is spent on defence worldwide?
More than the GDP of Australia mate. With that much money at stake, the people who pull the strings of the 'elected leaders" don't give a f- about anyone, or anything.
Pull you head out of your arse, or STFU and go back to FOX news telling you want to think.
True story.

Here it seems like every second old school jap car has recaro mesh heads from the likes of isuzu bighorms.

The whole reasoning behind said war is flawed.
Lest we forget.
world war one,
Lots of young guys were fooled into joining the war by Bullshit news stories. Calling the "Daisy Patch" battle as a thrilling charge. The reality was much different. Pretty much every small town in NZ (Including suburbs of cities, which were once considered towns themselves) have a war memorial to the fallen.
Lest we forget, yet look at the wars being waged now. What lessons have been learned? Not many it would seem.
And the same parties are lining their pockets from these wars as the ones past.
Know your enemy. That's the real way to honour the dead.
Banks and lending institutions pose a greater threat to our freedom than standing armies

And I've found the caliper mounting ears on the strut foul on the caliper body too.

I've had sunnys where the front screen goes kinda gasoline rainbowy.
I'd rock a new screen in a heartbeat. Laminated FTW. I still have 1200 coupe windscreen in my head from a head vs windscreen incident back in 1997.

Some S13 calipers have a larger diameter piston.

Mine is a J15 too. I'd expect it to be 4.6, But the book says that 4.8 was an option too. And SR20 is almost a bolt in conversion onto the J15 Xmember. Which I have ready and waiting when the time comes.