JIMS Jims Powerglide™ Hydraulic Tappet | Standard .8425 Inch O.D.

JIMS Jims Powerglide™ Hydraulic Tappet will provide you with an exceptional hydraulic function. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion.

In order to achieve maximum power, it is necessary to have no valve lash and to get rid of the OEM unit's tendency to collapse the hydraulic unit, which is also known as 'shock absorber syndrome'. Power loss occurs when the valve is not kept fully open.

Specifications:

• Build: Made-up from billet steel body, an oil-fed axle and a hand-honed hydraulic unit-cavity
• Outer Diameter: Standard .8425 Inch
• Weight: 149gm each

Features:

• Jims Powerglide™ tappets with greater hydraulic performance than stock equipment
• Direct improved replacement for OEM 18523-86A
• They even function well with solid style camshafts

Compatibility:

• 84-99 B.T.
• 86-90 XL
• 87-90 Buell (NU)