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930gt-40r 930gt-40r is offline
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Join Date: Jan 2007
Location: Boca Raton, FL
Posts: 2,063
Well the big problem that I have seen with the 3.2 heads (Ive seen it dont mean it will happen to everyone) is that the twin plug conversions crack when introduced to too much heat where the 930 versions handle it better. The stock 930 head dont have to suck, they serve their purpose from the factory. The reason being is that the stock style turbos didnt throw off that much volume, therefor to keep the range of useable power as broad as possible, porsche used smaller intake ports to keep the velocity up. I went the route of doing all of the machine work to the 930 heads and they seem to work good. I cant complain about them.
Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 07-25-2008, 04:08 PM
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