Gen 4 5.3
Block and crank ready for rod, pistons, and cam
821 heads one dropped a valve seat
Bare 799 heads
Looking for an ar9 with mat9 upper or brn9 upper prefer the 5.5in for both
Interested in other builds lmk what you have worse I can say is no
The 821 heads alone are worth more then the mat9 upper so this is a fair offer, all for complete gun
Text me 7276876897