Here is the scoop, I'm looking for stock A15 pistons with 10cc dish or less, I think the correct part number 12010-H9704. Motor is currently standard bore. Basically I'm looking for a 10-1 compression ratio, will be using the GX head off my A12 and a GX head gasket ...if I can find the pistons................otherwise it's likely time for forged pistons.

I saw Stewart Wilkins has some on their site (inquired as to specs). PJZ has some used forged pistons but I'm trying to avoid machine shop cost.

Tom

got some in a15 piston & rings .o4o(1mm) oversize with 12cc dish. only problem in sydney aust.

Are those std B-210 Slugs ?

What years are they found in ?

I'm 4 Time Zones away instead of 12

they are a std replacement a15 cast pistons/rings with 12cc dish.same comp height/same pin size/same everything. have used 100's of them all good,also can make up full rebuild kits,pistons/rings/cr,mains,cam bearings/gaskets/timing chain,tensioner.(performance bits also available)to suit your sizes you need. cheers

When I checked abour four years ago, Wiseco would make custom cast (not forged) pistons for $100/each. Any bore, pin height you want.

Nissan lists 12010-H9704 for $55/each in their 2010 catalog.

I can find stock pistons but they are all 12cc dish, which if I go up to 78mm would get the compression to 9.91-1 which would be close enough. I actually ordered a couple from various sources ($10 close outs) but to no avail.

I tried the part numbers for 210 and 310. Basically I'm trying to do this on my usual uber-cheap budget. If I just go as is compression will be 9.37-1,realistically going to 10-1 will probably only bring about 4-5hp but the goal is 100 RWHP (current A12 is about 80).

Of course I should stop dorking around and attempt build a proper motor that is in the 120 RWHP range. Using the cylinder head on the A12 would keep the cost down, maybe as low as $1200-1500......proper pistons being the bulk of it.

Tom

I understand that the GA16DE piston has been used in A15s with the downside being the need to surface the block. They seem to be cheaper and more available for stock-type cast. Thoughts?

http://www.totopiston.co.jp/cat/piston/pist-ni.html

The GA16 pistons are very close but rather than resurface the block I think it would be better to just bite the bullet and buy parts that fit.

Tom