S&S, Evo high performance tappet assembly set - 84-99 Evo B.T.; 86-90 XL (NU); All S&S T-series (Evo type) engines 541104 Gain of 20% oil pressure

Gain of 20% oil pressure

The double-layer design with lining in our XTM-Fiber® along with knee and hip protectors will protect you in any situation

Note: Advised for regular street use

- 3/8" counterbored mount holes

S&S, Evo high performance tappet assembly set - 84-99 Evo B.T.; 86-90 XL (NU); All S&S T-series (Evo type) engines 541104 Gain of 20% oil pressureWith special rollers and hydraulics. S&S tested up to 7800 RPM, without pump up. Inner bearing race has an increased outside diameter so more and larger needle bearings could be used. Tappets are hand fitted and pressure tested. Used in all S&S Evo type engines, but will also fit stock 84 99 Evo Big Twin (excl. Twin Cam) and 86 90 XL models. These lifters are compatible with virtually any engine application.