This new LSX Kit uses the popular GZMS Sportsman vacuum pump (VP101A) which is bolted to the head on the passenger side with a custom stud bolt and set of spacers. A custom designed brace bracket attached to the vacuum pump and the head. The stock tensioner pulley is replaced by a custom designed billet aluminum pulley that is slightly larger (3.5" dia), 6 rib serpentine with a 14 tooth Gilmer pulley combined to drive the pump. The pump is driven by a 5.4" 46 tooth Gilmer vacuum pump pulley using an included 22.5" long Gilmer belt, which results in a perfect pump speed of 63% engine speed. The inlet from the pump is attached to a custom designed billet replacement oil fill cap (VCB103), which also holds the vacuum control valve that comes with the kit (VCV103). The outlet of the pump goes to a custom designed double baffled aluminum breather tank (BT3) that sits snugly between the frame and the radiator on the passenger side. 5' of #10 Stainless braided hose and (2) #10AN 90's, (2) #10AN straights along with the necessary fittings for the pump and the tank are supplied with the kit for an even more simple installation. Also included are the stud bolt and spacer for the head and the bracket with 10 mm cap screw.

Everything is easily installed on the engine with the only typical modifications being to bend the AC line out of the way of the vacuum pump pulley and sometimes needing to loosen up the radiator reservoir and moving as far outward as possible to avoid the end of the brace bracket. The provided Gilmer belt is the correct length and varies between tight and loose depending on engine temperature. The installed kit makes in excess of 15 or so inches of vacuum without the vacuum control valve, which can be adjusted lower to suit the owner and engine builders desires.

Comes with V-belts and pulleys for use with cars that have an electric water pump. This model is only used when the serpentine belt tensioner is not utilized. The added crank pulley is an option only when there is clearance to run it and install it.

Note: installation of the crank pulley may require lifting the front of the engine or dropping the rack and pinion to allow access. Also pulley requires at least an inch of clearance in front of the balancer for the V belt pulley.