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Browse this smaller range of Dyna – Engine & Gaskets. Check exact model-year fitment and specifications on each product page.
Description Must be used with adjustable pushrods. Jims ''Hydrosolid'' tappets have broken the limitations of all previous hydraulic tappet designs...
View full detailsDescription The hydraulics used will work with both hydraulic and solid style camshafts. An excellent replacement hydraulic tappet for stock and hi...
View full detailsDescription Jims Powerglide™ tappets will give you a superior hydraulic function when compared with OEM style equipment; a billet steel body with h...
View full detailsDescription With lash cap recess. A lash cap recess allows the installation of a steel lash cap on top of the valve stem for when titanium valves a...
View full detailsDescription Compatible with 1.500" - 1.550" spring diameter. 10° angled for OEM H-D fitment. Fits double springs with damper. Fits all valve stem s...
View full detailsDescription Compatible with 1.437" - 1.500" spring diameter. 10° angled for OEM H-D fitment. Fits double springs with damper. Fits all valve stem s...
View full detailsDescription Compatible with 1.437" - 1.500" spring diameter. 10° angled for OEM H-D fitment. Fits double springs with damper. Fits all valve stem s...
View full detailsDescription Chromoly. Dimensions: .080" thick; .585" I.D. and 1.500" O.D. Jims chromoly lower collars are custom machined to prevent harmonic vibra...
View full detailsDescription Quick installs without removing rocker covers. Manufactured from blue anodized lightweight aerospace heat treated aluminum with heat tr...
View full detailsDescription Used on 66-84 Shovelhead models that are equipped with JIMS Powerglide tappets (MCS 978103; 978104 or 978105). This pushrod kit include...
View full detailsDescription For models with OEM style hydraulic units only for use with stock hydraulic or equivalent tappet assemblies. Manufactured from aerospac...
View full detailsDescription Used to space-out stock length pushrod covers when longer than stock cylinders are used. Fitment 36-25 Big Twin (excl. Flatheads) 57-90...
View full detailsDescription Used to space-out stock length pushrod covers when longer than stock cylinders are used. Fitment 36-25 Big Twin (excl. Flatheads) 57-90...
View full detailsDescription Used to space-out stock length pushrod covers when longer than stock cylinders are used. Fitment 36-25 Big Twin (excl. Flatheads) 57-90...
View full detailsDescription Used to space-out stock length pushrod covers when longer than stock cylinders are used. Fitment 36-25 Big Twin (excl. Flatheads) 57-90...
View full detailsDescription Race valve spring set. Titanium top collars. Kits include top and lower collars; springs and valve keys. An interference double spring ...
View full detailsDescription Polished billet aluminum. Nothing gives your engine a cleaner and smoother one-piece look than these pushrod covers. Adjustable pushrod...
View full detailsDescription Street & Performance. Titanium top collars. Kits include top and lower collars; springs and valve keys. An interference double spri...
View full detailsDescription Street & Performance. Titanium top collars. Kits include top and lower collars; springs and valve keys. An interference double spri...
View full detailsDescription Stock replacement for JIMS 978030; 978031 and 978032 roller rocker arms. Fitment 66-17 Big Twin (Excl. M8) 86-22 XL Sportster 08-12 XR1...
View full detailsDescription Stock replacement for JIMS 978030; 978031 and 978032 roller rockers. Fitment 66-17 Big Twin (Excl. M8) 86-22 XL Sportster 08-12 XR1200 ...
View full detailsDescription Cast from 4340 chromoly steel and heat treated. With 660 alloy bronze bushing fit of .0007" to .0012" which is used for best wear resis...
View full detailsDescription Cast from 4340 chromoly steel and heat treated. With 660 alloy bronze bushing fit of .0007" to .0012" which is used for best wear resis...
View full detailsDescription Bronze. O.D. 1.0035". Used in cam cover. OEM style replacement for 25582-93. Note: Removes with JIMS 978300 tool (for 54-99 B.T.). Note...
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