Manifold End Rail Spacers Valvetrain Small specks of aluminum

Small specks of aluminum

which helps avoid leaks

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Manifold End Rail Spacers Valvetrain Small specks of aluminumReher Morrison's intake manifold end rail spacers are CNC machined from 6061 T6 aluminum. These spacers fill the gap between the bottom of the intake manifold and the top of the lifter valley at the front and rear of the block. (This area of the lifter valley is sometimes referred to as the "china wall".) This gap can be quite large due to: Installing certain cylinder heads (i. e. Dart or Brodix 20, etc.), installing a standard manifold on a tall deck