It can be one of the most vexing and frustrating parts of an engine swap, the accessory drive! Holley knows this and that is why they have developed a mid-mouth accessory drive system for GM Gen V LT4/LT5 V8 engines that will make your life easier by tightening up the package and making fitment easier in vehicles where these engines did not arrive stock.

Additionally you will not have to worry about the nightmare of cobbling an accessory drive together from all different types of pieces which ultimately ends in the car not performing correctly and you being very frustrated at that. This is a one stop solution and it’s well engineered. These kits are available for LT4 and LT5 dry sump engines as well as LT4 wet sump engines as well.

The other neat functions here are an adapter for correcting the angle of the throttle body to make intake construction easier, a swivel fitting for the bottom outlet heater hose to make packaging better, and even the ability to fit a larger supercharger crank pulley if the need arises…the need will arise.

This is a neat system that is designed to eliminate headaches. Here ya go!

Holley Releases Mid Mount Accessory Drive Systems for GM Gen V LT4/LT5 Engines Holley is pleased to announce the release of LT4 and LT5 Mid-Mount Accessory Drive Systems, which pull your accessories in tighter than ordinary accessory drives for an integrated original-equipment-look. Three new versions are available – one for dry-sump LT4 engines, one for dry-sump LT5s, and one for wet-sump LT4s. A splined dual-bearing system eliminates belt stress on the power-steering pump’s internal bearings, ensuring a long service life, and the supercharger drive maintains the original belt path and tensioner. For LT-swap applications, a throttle-body angle-correcting adapter better positions the TB for easier intake-tube routing, the bottom-outlet swivel heater hose creates more clearance options, and OE pulley ratios allows for a larger SC crank pulley.