What are you purchasing? A brand new or used good core, (if a used block is sent 200$ will be refunded upon purchase)  vanguard model 38 horizontal block that was bored out for our baddest 3.008 pistons with gapless rings. Package includes block and pistons. The pan and torque plates are torqued to the block before boring. The bores are finish honed . Exact same procedure and product that we run in our engines. Depends on block availability

Our new pistons are gas ported and use thin low tension race rings. These pistons are compatible with the 4.262 rod. Price is per pair. Rings and wrist pin not included. Drop in wrist pin is 12.5-16 hp vanguard wrist pins (model 29 and 30) model 35 pins can be used as well as intek pins but they need to be cut to 2’’ length.

Rings part number:

https://www.summitracing.com/parts/tsr-t3012xc