Overview

Crower Shaft Rocker Arm Mounting Kits

Crower shaft rocker arm mounting kits are specialized hardware packages that provide the precise dowel pins, bolts, shims, and alignment tools needed to install high performance shaft-mounted rocker arm systems onto an engine's cylinder heads.

What the kits include:

* Dowel pins: Provide precise location indexing for individual rocker stands (available in 1/8 in. new style or 3/16 in. old style configurations)
* Hold-down bolts: Securely clamp the rocker shaft stands down with high-clamp loads
* Shims: Allow precise height adjustment to dial in correct valve train geometry
* Installation tools: Associated drills or specific jigs are often paired or sold alongside these kits to accurately pin the cylinder heads

Purpose and function:

* Rigidity: Replaces standard flexible stud mounts with a rigid shaft layout for high-RPM stability
* Load distribution: Spreads the massive valve spring pressure across a larger area on the cylinder head
* Custom fitment: Adapts high-end stainless steel or aluminum shaft rockers onto popular racing and performance cylinder head castings

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