INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

650hp Street Friendly Motor?

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Old Jul 6, 2012 | 05:09 PM
  #21  
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That should do it man.

Since your goal is reliable power, do the 427 IMO. 4" stroke > 4.125" for reliability IMO.
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Old Jul 7, 2012 | 09:03 AM
  #22  
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Originally Posted by TurboBerserker
That should do it man.

Since your goal is reliable power, do the 427 IMO. 4" stroke > 4.125" for reliability IMO.
x2
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Old Jul 7, 2012 | 06:15 PM
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Ya it's hot where you live, I've been there.
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Old Jul 7, 2012 | 11:45 PM
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Originally Posted by 03sierraslt
Ya it's hot where you live, I've been there.
May I ask why were you here? Oil and Gas, Military base?

Which heads and cam would work better with the setup?
Cathedral 247cc,
LS7 265cc
LS7 285cc
235/239 .621/.624 114 LSA+2
239/247 .624/.624 114 LSA+3
235/243 .621/.624 114 LSA+3
243/251 .624/.624 114 LSA+3
Please explain why as I am not well educated in the matter.

All input is very much appreciated.
Thanks
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Old Jul 8, 2012 | 12:03 AM
  #25  
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The cams aren't that much different IMO. Personally, I'd do the 239/247 since you mentioned street friendly, but you wouldn't be giving up much with either of the two smaller ones.

Do the heads have any work or are they as cast? Your going to make your numbers with the 247s, so really it comes down to price, and what kind of manifold you want to run (cath or ls7 style). I don't think you need 285s.
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Old Jul 8, 2012 | 04:41 AM
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Originally Posted by TurboBerserker
The cams aren't that much different IMO. Personally, I'd do the 239/247 since you mentioned street friendly, but you wouldn't be giving up much with either of the two smaller ones.

Do the heads have any work or are they as cast? Your going to make your numbers with the 247s, so really it comes down to price, and what kind of manifold you want to run (cath or ls7 style). I don't think you need 285s.
TSP PRC 247cc or their PRC LS7 265cc. The heads they offer on their webiste. I will not touch the heads since they're building me the motor. I am basically looking for as much power from the setup with restricitons of keeping it street friendly, I will run the appropriate FAST 102/102 on either. I do not mind paying extra to get the right setup so I don't regret anything laterwise.

Thanks again,
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