Masquerading High Tech Heads - Modifying Modern CNC Aluminum Heads to Look Vintage

Obviously a mold has to be... 

   

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Obviously a mold has to be made from an original set of cylinder heads.

As far as small-block Chevrolet engines are concerned, what could be better than the latest high flowing cylinder heads? How about the latest high flowing cylinder heads that look no different than a set of old fuelie humpers? Now were talking. I have always wanted to see Super Chevy Magazine do a story using the latest parts disguised as a retro looking engine. Well that has come to fruition. While we won't reveal the actual engine and engine build (wait for the March issue to come out), but what we can focus on the CNC transformation process.

There is a shop in Palmdale, California, called Precision Specialty Service. At Precision Specialty Service, they came up with a method to mill down a set of new heads to give them that vintage look.

Precision Specialty Servive
(661) 317-6137
3204 Quarry Rd
Palmdale California, 93550
Ask for Billy Goyett.

Just like a photo negative...        read full caption Just like a photo negative a positive plaster cast is made from the mold. This plaster cast is what should appear on the new set of heads.	The computer maps the cast...        read full caption The computer maps the cast plaster piece and all the contours. From here, it is all done on the computer.	And here are the brand new...        read full caption And here are the brand new AFR 195 cylinder heads. All the accessory holes are first filled in before the actual machining.
Slowly the machine works its...        read full caption Slowly the machine works its magic...	...and the new shape is milled...        read full caption ...and the new shape is milled right onto the front of the heads.	After the machining, the heads...        read full caption After the machining, the heads are media blasted to give them that cast iron look and the corners are rounded for a more authentic, old-school look.
Superior flowing heads that...        read full caption Superior flowing heads that help create horsepower masquerading as set of old cast iron factory heads. This is having your cake and eating it too. Of course the plug angles will give it away. But we are guessing that a majority of people who take a look will not notice.