P90 head modifications - Engine & Drivetrain - Classic Z Car Club Skip to content

P90 head modifications

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Hello everyone. I dropped my P90 head off at the machine shop today. These are the specs I gave him: 262/272 duration 450 lift

mill head .020 for a 9:1 ratio

5 way valve grind intake

3 way valve grind exhaust

port and polish

What do you all think? Let me know. Rick.

Give them the intake also so they can match the ports.

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