resurface cylinder heads

Have you ever wondered why Ford says don’t resurface these cylinder heads? Thickness of the cylinder head could be one reason, surface finish can be another and lastly, maybe they just want to sell more OE Ford cylinder heads. I don’t think they say it to sell more Ford cylinder heads at all. That leaves…

ford rocker boxes

We have always known you cannot use 18MM rocker boxes on 20MM cylinder heads and vice versa. Some shops, we have been told, will change the cylinder heads and rocker boxes as assembly from an early engine to a late engine (18MM to 20MM) and vice versa using stepped dowels. Don’t know if it works…

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