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WydRyd the port sizes on the 964 engine is 41.5 int 38 exhaust. Valve size was 49, 42.5. The 96 engine I have has 43 int 39 exhaust 50 int 43.5 exhaust. The big reason for this is b/c in 96 the engine had a varioram intake on it thus they could run bigger valves and ports. The reason my car has a 95 plastic intake on it is because it was initially slated for a 914 installation but I bought it when the other guy had a change of heart.
However, your point of the savings on pistons is well noted. Machine work on 6 pistons vs buying a whole new set would be a ~1K savings.
Since I am new to boost from any source I was wondering how much of an advantage the larger ports and valve sizes would be. For that matter would a varioram intake make a good turbo intake?
I know that I am throwing out a lot of questions at this point it is just so I dont wind up wishing I would have done it differently when it is all said and done.
Thanks for your responses,
Larry Ratcliff
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