If you’re building a street/strip Big Block Chevy and want strong power without overkill, Flo-Tek’s 320cc aluminum heads strike the perfect balance of flow, velocity, and reliability.
Features:
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320cc intake runners = crisp throttle response + efficient airflow
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121cc combustion chambers for solid pump-gas compression
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Fully assembled with stainless valves, springs, retainers & locks
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Fits Mark IV Big Block Chevy engines (396–502 ci)
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Machined for rocker studs and guideplates – ready to bolt on
Why It Wins:
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Mid-size runners = killer torque and street drivability
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Out-of-the-box assembled = no parts chasing, just install & go
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Lighter than iron = better weight transfer off the line
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Perfect balance of street manners + track performance
Proven at the strip and trusted in the garage, Flo-Tek 305cc heads are built for real-world racers. Shop now at Virtual Speed Performance and join the VSP Crew. 🏁