That would be the one on the right with the sheetmetal intake...5.3 with 4.8 slugs 64cc heads 2.02"/1.57" valves and asa cam and springs , the one in the car is just a 2001 lm7 with 220 cam and matching springs ,stock 862 heads and this thing flies with a th350 and 3000 stall, the last is a lq4 punched to 370" with ls2 flat tops and gen 4 rods with 64cc ls3 style heads an asa cam and springs, still gotta order the throttle body elbow adapter and fuel rails.....then i will complete the assembly