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Old Aug 20, 2014 | 02:01 AM
  #1  
ThornyC503's Avatar
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From: Syracuse, New York
Default TSP PRC Head Porting Services

I'm thinking of sending my heads into TSP to have them ported. I have a 03 corvette with the stock 241 heads. What gains do you think I would see If I have them go ahead and upgrade the 241's with their 2.5 stage porting service? Or would it be in my best interest to spend the little extra cash and get their 215cc CNC ported cylinder heads? Not sure what would be the better option?!?
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Old Aug 20, 2014 | 04:02 AM
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Depends on the rest of the build and how you want to spend
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Old Aug 20, 2014 | 05:20 AM
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I have ported all sorts of castings 241s 243s and even some PRC aftermarket heads and other various aftermarket heads in relation to the LSX. The 241 head is no slouch and the advantage to porting it is you have no additional cost into another casting and they have strong mid lift flow numbers if your in to that sort of thing. Not quite sure what their stage 2.5 is, but if it includes larger valves its really not needed unless your building something more max effort. If your going to spend the cash I would just grab an as cast head like the PRC 225cc. Will save you a good bit of money.
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Old Aug 20, 2014 | 11:01 AM
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OP, if you haven't yet, check out Advanced Inductions high compression CNC ported 241 heads. They put the numbers down.

https://ls1tech.com/forums/dynamomet...o-results.html

https://ls1tech.com/forums/dynamomet...m-results.html
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Old Aug 20, 2014 | 04:27 PM
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AI HCR for sure.
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