Overview

Pro-Filer Performance Products Big Block Chevy Hitman Tunnel Ram Intake Manifolds

Pro-Filer Performance Products Hitman big block Chevy tunnel ram intake manifolds supply race winning performance out of the box. Available for 9.8 in. or 10.2 in. deck heights, each Hitman tunnel ram base is designed to take your power curve to higher levels without costly hand-porting. They are manufactured from aerospace-spec aluminum alloy (primary virgin ingot), and are truly revolutionary in that they are lighter in weight than most fabricated units, plus their solid cast design helps to reduce resonance, which affects high-rpm horsepower. The cast, pre-ported runners have been designed to eliminate airflow restriction and produce more power.

Pro-Filer Hitman BBC tunnel ram intake bases also feature:

* Accepts your choice of dual or single-carb top plates
* Dimensional consistency far better than fabricated manifolds
* Fits the majority of BBC spread port heads with 18, 14, and 12 degree valve angles
* Cast bosses for injectors
* Recommended for 565+ c.i.d. engines

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