The 5.3L Gen three iron block LM7 is tough to conquer in the event you’re on the price range. It’s no slouch at close to three hundred hp inventory. Additionally, it could be stroked to 383 c.i.d. and upgraded with numerous LS1/LS6 elements. You can find the LM7 underneath the hood of many boosted LS swaps.3L truck (RPO LM7) appears to come wit… Read More