Is there any diff between 90 heads and 94 heads ?????
Regul8r Registered User Mar 9, 2011 #2 forcedbird94 said: Is there any diff between 90 heads and 94 heads ????? Click to expand... From what I have read they are the same design. What was different is they heat treated the 94/95 heads supposedly to make them better but in reality it hardened them and made them brittle more prone to cracking over time and during overheating. Others will chime in on this.
forcedbird94 said: Is there any diff between 90 heads and 94 heads ????? Click to expand... From what I have read they are the same design. What was different is they heat treated the 94/95 heads supposedly to make them better but in reality it hardened them and made them brittle more prone to cracking over time and during overheating. Others will chime in on this.
Regul8r Registered User Mar 9, 2011 #4 no the power diff was from other things... Passenger side exhaust manifold flowed better larger MAF larger injectors Different intake plenum to the different SC I'm sure there are other factors in computer programming etc...
no the power diff was from other things... Passenger side exhaust manifold flowed better larger MAF larger injectors Different intake plenum to the different SC I'm sure there are other factors in computer programming etc...