Now that you have the PROFORM Valve Spring Tester you'll need a set of PROFORM Air Hold Adapters to remove your springs with the heads on the engine. It's a simple 3-step process: screw the air hold adapter into your spark plug hole, attach air fitting, and then an air hose. The air pressure will hold up your valves while you get to work!

Features:
Includes 14mm and 18mm Sizes with 1/4 NPT Female Thread
  • for Use In Spark Plug Holes
  • Black Finish
  • Includes 14mm and 18mm Sizes with 1/4 NPT Female Thread
  • PROFORM Parts Brand Product
  • Sold as One Set
  • More From This Category

    ARP Engine and Accessory Fasteners, 12-point, Chromoly, Black Oxide, For Chevrolet, 5.0, 5.7L, Kit

    ARP Engine and Accessory Fasteners, 12-point, Chromoly, Black Oxide, For Chevrolet, 5.0, 5.7L, Kit

    $317.72

    COMP Cams Pushrod, Magnum, Chromoly, Heat-Treated 7.900 in. Long, .080 in. Wall, 5/16 in. Diameter, Set of 16

    COMP Cams Pushrod, Magnum, Chromoly, Heat-Treated 7.900 in. Long, .080 in. Wall, 5/16 in. Diameter, Set of 16

    $318.01

    Premium Piston Ring Set

    Premium Piston Ring Set

    $341.51

    Simpson Racing Simpson Latch & Link SFI Harness 2" Double Pull Down SFI 16.1, 5-Point, Clip in

    Simpson Racing Simpson Latch & Link SFI Harness 2" Double Pull Down SFI 16.1, 5-Point, Clip in

    $466.83

    Stilo Helmet, VENTI4 WRC Composite White SA25 8859, 63, Adult 2X-Large (63 cm), FIA 8859-2024 & Snel

    Stilo Helmet, VENTI4 WRC Composite White SA25 8859, 63, Adult 2X-Large (63 cm), FIA 8859-2024 & Snel

    $1,873.23

    Whiteline Front/Rear Sway Bar, Solid, Steel, 22mm x 22mm, Impreza, Subaru, Kit

    Whiteline Front/Rear Sway Bar, Solid, Steel, 22mm x 22mm, Impreza, Subaru, Kit

    $1,257.95