Chevrolet - GM 350 TRUCK SWIRL PORT HEADS

The GM 350 Swirl Port heads are designed for bottom end torque. This page shows pictures of the swirl ports of these heads.      Keys - gmhead, gmheadpart

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CYLINDER HEAD NAVIGATION

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GM Fast Burn 350 Heads	GM 350 Swirl Port Head

GM 350 SWIRL PORT HEAD DESCRIPTION

These heads were designed for bottom end performance, mainly torque. They are stock truck heads and not performance heads. They have restricted air flow that becomes a problem after 4,000 RPM. Used in their original application as a high torque bottom end head in a truck for towing the do fine. These heads come on GM truck engines P/N 12568758 and P/N 12520270.

GM 350 SWIRL PORT HEAD PICTURES