8 Big Block Chevy TRW Forged LS7 3963551 Pistons with 7/16 10198922 Dimple Rods

Description

This is a set of 8 Big Block High Compression
Chevy forged aluminum  3963551
Chevy pistons  and  white code Dimple rods  part #10198922 6.135 in length with 7/16 hardened bolts
High Compression LS7 made with 4340 forged steel magnafluxed and shot peened.     GM and TRW cast into the bottom inside.  12.25 to 1 open chamber pistons depending of course on the head chamber volume.
GM and TRW are  cast into the bottom inside have not found a number.
3963551 pistons are 11 to 1  to
12.4t o 1 open compression depending on the  chamber volume of the pistons?   We have four
353049
73-'84 454 heads with oval intake ports and an open 122cc chamber, 255/119cc ports, according to mortec com. The matching head has rockers see bottom pictures the other does not.
353049
"a great head for a hot street or drag BBC. About the best of the factory oval port heads." Chevelles.com