jepherz
Staff member
My car overheated and warped the head pretty bad. Rather than milling down my stock head 13 thou, my machinist suggested for me to use a spare head he had on the shelf and was almost ready to go. However, he noticed there was quite a difference in the water holes on the head. He also said the intake ports were the same size (1g) and all of the exhaust mani studs were the same. Any idea what the difference is here? The unfinished head with the circles and extra ports is the stock head off my 91 vr4.