I meant to post this a few weeks ago. This is a shot of the real thing these heads are going dons 480 ci 2.300 1.68 5/16 stem . Some might need to sit down the intake port volume is 365cc should be less than 370 after it is all finished up the exhaust port is 260 cc after porting I know that might sound big for a lot of people . But I think the port is raised up around 1in over a factory RAV I could see a. 400 + cc port for the big engines no problem
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