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1975 BMW 3.0Si Base Sedan
 
BMW Home > 1975 BMW 3.0Si Base Sedan > EngineCylinder Head & Valvetrain 

Cylinder Head & Valvetrain

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Rocker Arms and Shafts

Rocker arms transfer the energy from the camshafts and/or pushrods, to the valves. One end is moved by the camshaft and/or pushrod, while the other side moves the valve stem - physically moving the valve up and down.
Rocker Shafts
Rocker shafts are the cylindrical rods that rocker arms rotate around.
Seal - Rocker Shaft Cover Plate Bolt

Rocker Shaft Plug

Exhaust Manifold

The exhaust manifold brings the exhaust gases from multiple cylinders into one pipe. Each manifold is designed to work with the engine's back pressure and upgrading to headers is a common performance upgrade.


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Page last updated: Tue 12/5/2017 11:05:23 PM
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