Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Cathedral v.s. Rectangular Port Cylinders - Head To Head

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Old Sep 14, 2013 | 08:03 PM
  #61  
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Originally Posted by lil john
I chose these heads ....for the fact that. it's a 408..they out flow any Cathedral with a smaller test bore...and similar Runner size.....They have 12 degree valve lay out....... they match my LS3 intake........the port can grow for larger engine size(small thru large bore LS3 12 degree heads.... there may be enough material to port small runner to a large Runner size?..and Last ......Mast makes a good product....
Right. Flow numbers, runner volume, and brand name. Got it
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Old Sep 14, 2013 | 08:06 PM
  #62  
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You think you No me I've been on this site for yrs. just never got registered and posted any thing...I'm just hitting you with all this and you like you just got on in 2013 .....I been on LS since 1998 + over 8 engines does it start to give you some aspect of what I know...I can take my LQ9 and sleeve it because I can't find a Aluminum block for the same price as a ERL....Sleeved LS2 ....$3000. Pecos....
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Old Sep 14, 2013 | 08:10 PM
  #63  
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KCS you know your Sh*t I'm leaving to get a good seat for the fight...I couldn't leave smelling like smoke
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Old Sep 14, 2013 | 08:59 PM
  #64  
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I can't believe we're from the same city. How embarassing..
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Old Sep 14, 2013 | 09:32 PM
  #65  
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Houston not worried about what u think $ talk. We eating over here looking at the fight and looking at photos of Colombia...$ team vs canelo and stop hating and get your money up.
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Old Sep 15, 2013 | 12:55 AM
  #66  
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$$$$$$ up S/A friend just helped on the heads for the haters that Y u never see pictures......Defense is a better offense...and I can defend those who say......U ain't ****** by $$$$$$$$$$$$ up...... we closer to heads haters. If I can help I will....... but haters U never no!...no new friends....the fight was like my engine ...He don't know what's up.....=$$$$$$$ I don't owe that much more.


Thanks $ Team
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Old Sep 20, 2013 | 11:59 AM
  #67  
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Here's some technical info.... well not really...I was wondering about what happened to Mast Splayed valve ls3-7 head so I tried email and ended up talking to Horace he basically told me that is was a good head but at more Expense with rather questionable improvement it really wasn't any better than Standard 12* degree heads the cost would be in the 1499 range as the Intake & exhaust valve are splayed 3 degrees vs $1299.99 ea for standard Med bore heads...
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Old Sep 20, 2013 | 12:09 PM
  #68  
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Their Mozez heads are my all time favorite, but not for the budget minded.
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Old Sep 20, 2013 | 12:59 PM
  #69  
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From: Studewood/Acres-Homes TX.
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I like the fact that it used standard intake and exhaust..while being a splayed head and 255cc's...I figure it was roughly 10 cfms better than LS3 med bore head and would have competed with Mast LS7 heads...1499 vs 1299 and a smaller port than the 274cc LS7 head...Why would they compete against themselves they could use this in future app.'s. I should have asked would they sell one of those left over splayed LS3 heads....
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Old Sep 20, 2013 | 01:02 PM
  #70  
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Great guy's with Frankenstein Racing Heads we talked for a long time....Thanks Chris.
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Old Sep 21, 2013 | 11:24 AM
  #71  
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I run Mast cathedral head with nitride beehive springs and truck intake manifold. 550hp N/A, plenty of flow
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Old Jun 20, 2014 | 09:57 PM
  #72  
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This thread cracked me up.
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Old Jul 3, 2014 | 01:03 PM
  #73  
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Originally Posted by lil john
Great guy's with Frankenstein Racing Heads we talked for a long time....Thanks Chris.
Chris does know his business (Cylinder heads).
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Old Jul 4, 2014 | 06:49 AM
  #74  
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Myself... Torn between Mast 215's or SB LS3's or a set of TFS Heads from Chris
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