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PRO1 20 195cc Ports

PRO1 20° 195cc

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Description

Serious performance upgrade for street, mild bracket racing and oval track racing. Maximum torque and throttle response from idle to 6,800 RPM. Best for 347-427 cubic inch engines. Works with most standard components.

PRO1 20° 195cc Aluminum cylinder heads feature increased airflow for larger engines and higher RPM usage.

Standard valve angle and spacing is retained for bolt on compatibility. Exhaust runners are raised .135” for improved flow. Manganese Bronze valve guides are used for long life, and hardened valve seats provide durability with unleaded fuels. Features both 2.500″ and 3.000″ exhaust bolt patterns.

Assemblies include Stainless Steel valves, premium springs, locks, retainers, guide plates and seals.

Heads are sold individually.

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Material: RMR Cast Aluminum Alloy

Valve Angle: 20° (stock)

Intake Port Volume: 195cc

Intake Valve: 2.020”

Exhaust Valve: 1.600”

Chamber Volume: 58 or 62cc

PRO1 20° 195cc – Aluminum

58cc Combustion Chambers

13200010 – Bare Head

13201111 – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

13201112 – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

13201113 – 1.550” Dual Springs for Solid Roller Cam .660”


62cc Combustion Chambers

13210010 – Bare Head

13211111 – 1.250” Single Springs for Hydraulic Flat Tappet Cam .510”

13211112 – 1.437” Dual Springs for Hydraulic Roller or Solid Flat Tappet Cam .620”

13211113 – 1.550” Dual Springs for Solid Roller Cam .660”

PRO1 195 Ford Tech Sheet – H31

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