Jims Catalogue

JIMS ® NEW PRODUCTS JIMS ® NEW PRODUCTS VALVETRAIN

JIMS 4340 CHROMOLY STEEL PUSHRODS AND SOLID ADJUSTABLE TAPPET KIT FOR SHOVELHEAD

Despite advancements in hydraulic lifters, solids are still the way to go for maximum power. Most engine builders agree that solid lifters can withstand more aggressive cam profiles and higher RPM. Just because your engine is an older Shovelhead design doesn’t mean you have to settle for anything less than the best. JIMS ® is proud to now offer a top quality 4340 chromoly steel pushrod and adjustable solid lifter kit for Shovelhead Engines. No. 5525 – Use on 1966-1984 Shovelhead engines.

POWERGLIDE™ STEADY ROLL TAPPETS It is no secret to us at JIMS ® (and to top engine builders) that performance V-Twin engines require more valve lift than stock designs. This increases the load on the tappet roller, which can lead to failure. Tappet

roller failure is a catastrophic and expensive failure. Broken needle bear- ings allow the tappet roller to deform, causing cam lobe damage. Pieces of the hard bearings, as well as debris from the cam can eas- ily contaminate other parts, such as cam plates, bearings, oil pumps, and other tappets ultimately resulting in a complete rebuild. To remedy this, we have replaced the needle bearings with a special bronze alloy bushing, resulting in increased reliability and longevity. No longer do you need to worry about needle bearings and debris damaging the engine in the event of a fail- ure. In addition to this, JIMS has invested in new machinery that controls the hydraulic unit fitment toler- ance within .00015”. This new failsafe design means that even if the bushing wears out, it will be retained in the tappet assembly. The new Powerglide Steady Roll Tappets are available for use on all Milwaukee Eights ® , Twin Cams, Sportster 2000-present, and Buell ® 2000-present (except 1125R.) Also, on 1984-present EVO, 1986-1990 XL & 1987-1990 Buell ® . For more details see No. 1827-IS instructions. Milwaukee Eight - Use on 2017-present Milwaukee Eight ® engine, both Touring & Softail. Twin Cam - Use on 1999-2016 Twin Cam, 2000-present Sportster & Buell ® .

OIL FED AXLE

STEADY ROLL BUSHING

No. 1827 - (.8420” O.D.) No. 1828 - (+.002” O.D.) No. 1829 - (+.010” O.D.)

Evolution - Use on 1984-present Evo, 1986-1990 XL & 1987-1990 Buell ® . No. 1824 - (.8425” O.D.) No. 1825 - (+ .002” O.D.) No. 1826 - (+ .005” O.D.)

STEADY ROLL

NEEDLE BEARING

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