A friend of mine has these pistons for sale, brand new in box, only one taken out to look out (can have pics if anyone here is interested or knows anyone who is)...

Part # is 194964

for 18 degree heads
Chevrolet Big Block 500+
bore 4.600
stroke 4.250
rod length 6.535
comp height 1.140

I believe these were right around 900$, he is asking 700$ firm.

Locks, pins, rings included

 

 

None of you guys building a real motor? haha jp