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402 head reccomendations

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Old Jun 5, 2009 | 04:09 PM
  #41  
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Originally Posted by 99blancoSS
Thats 360 on a 4.155 bore.
what would that be on a .30 bore
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Old Jun 5, 2009 | 07:53 PM
  #42  
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Originally Posted by smok'nZ
what would that be on a .30 bore
The CFM numbers on the heads in that link are taken on a 4.155 bore, which means on a smaller bore they will be different.

http://www.sdparts.com/product/SD880...ftSprings.aspx

Flow Chart:
Flowed @ 28” H20 on a 4.155” Bore
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Old Jun 9, 2009 | 08:26 AM
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subscribed
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Old Jun 9, 2009 | 09:02 AM
  #44  
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wow all that info & I don't know what heads to get for my 402 either. what do the l92's come off of?
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Old Jun 9, 2009 | 10:06 AM
  #45  
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Its a budget choice rice, you do the best you can afford.

I'd go with AFR 225's or TFS 225's or PRC225's on a 402 first then L92's. The L92's are good flow for the money, but they need to be cammed right.
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Old Jun 10, 2009 | 07:39 AM
  #46  
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Yeah, that price is per head, so it's really $1600. So your proposed combo is really 2100 instead of 1200, but still a good deal.
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Old Jun 10, 2009 | 08:34 AM
  #47  
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i like the prc heads i have, but in a year or so i will be getting afrs, and a diff cam.
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Old Jun 10, 2009 | 10:04 AM
  #48  
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**** AFR'S go trickflow!
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Old Jun 10, 2009 | 10:25 AM
  #49  
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I have L92's with a Patrick G Cam and I'm happy with it.
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Old Jun 21, 2009 | 11:03 AM
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Originally Posted by rpmauto
i like the prc heads i have, but in a year or so i will be getting afrs, and a diff cam.
Im gonna have almost this same setup how much will I be leaving on the table if I stick with my ported and poished 241s.Im on a budget.
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Old Jun 25, 2009 | 05:39 PM
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im running the tfs 225's with the 921 springs on my 402
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