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improved meshing to reduce tooth jump
Like all Speedmaster cylinder heads
Switch out your weak and thin factory retainer plates with Speedmaster heavy-duty bearing retainer plates and make your ride a lot safer
The Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles
This body has a much larger diameter then your existing throttle body
Chevy 350 Complete 4 Bolt Splayed Steel Main Caps (5 Caps) improved meshing to reduce toothSpeedmaster main caps are precision machined from superior quality steel. They come available as stock replacements (straight bolt) or with splayed outer bolt holes. These extreme main cap sets consist of all 5 caps including the rear and front cap. Speedmaster main caps improve reliability in highly stressed engines by reducing distortion of the main bearing bores, and increasing the cap's resistance to closing up under high loads.
