Looking to extract more power from your 6.2L LT1 or Gen V 5.3L engine? Holley EFI LT1 Hi-Ram Intake Manifolds might just be the solution. The modular two-piece design of Holley's all-new intake makes them easy to disassemble anytime you want to swap tops, change sensors, or perform custom port work. And if you're looking for multiple induction options, this is definitely the manifold for you. Want to run a 95mm throttle body? No problem. A 105mm throttle body? That either. How about mounting a 4150 or 4500 series carburetor on top for that old-school look? You can do that, too. You can even select a "blank" flange and build your own custom induction system – the only limit is your imagination! The five unique plenum tops make EFI LT1 Hi-Ram the most versatile intake manifold on the market today, and no matter which option you select, machined O-ring grooves at the plenum and all eight ports make swapping tops hassle-free and guarantee a leak-free seal. Built to accommodate a wide array of applications, these manifolds feature tapered runners, large-radius turns for a smooth transition to each cylinder, and a large-volume plenum for maximum power. They even have provisions for a MAP sensor and three vacuum ports already machined into the back of the manifold. For a detailed look and complete product information on Holley EFI LT1 Hi-Ram Intake Manifolds, click here.