Holley Installation Kit For LS Low Accessory Drive Bracket Hard Blok The serrated/helix combination design also

The serrated/helix combination design also reduces intake whistle that occurs with helix-only designs

The Centerforce I

Street Stock (stock mount)

gears and headers

Holley Installation Kit For LS Low Accessory Drive Bracket Hard Blok The serrated/helix combination design alsoLow LS Accessory Drive Fits Middle and Long accessory spacing only (does not fit Short accessory spacing Corvette CTS V G8). Customers w short spacing can swap out water pump and crank pulley to convert to middle or long spacing. Long Spacing requires Installation kit 21 4. Provides Proper Spacing Holley accessory drive installation kits provide proper spacing for Holley A C, P S & Alt accessory drive brackets, so belts ride at the perfect distance on