Trick Flow 440 heads, The Real Deal?

younggun2.0 said

I'm glad you like them! I just got a set myself! Any input about the minimum bore requirements? I plan to put thes on my 383.

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WIth the size of the intake valve and the size of the chamber you need a 4.320"+ to make it work. I don't think it will fit the small 4.250" 383 bore without issues.