BIG BANG 5.3LSTOCK BOTTOM END, RING GAP, TWIN TURBO, 24 PSI. HOW MUCH POWER AND BOOST CAN THE STOCK BOTTOM END ON A GEN3 LM7 5.3L TAKE? TO FIND OUT, I GRABBED A MOTOR FROM A LOCAL WRECKING YARD, ADDED RING GAP, PORTED HEADS, CAM AND INTAKE, THEN TOPPED IT WITH A PAIR OF CXRACING TURBOS. WE TURNED IT UP TO FIND OUT HOW MU
CH POWER THE STOCK BLOCK, CRANK, (GEN 3 POWDERED METAL) RODS AND (CAST) PISTONS WOULD ACTUALLY TAKE.