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

416 Heads

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Old Mar 1, 2016 | 10:02 PM
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Default 416 Heads
What do you guys think. Looking at MAST 265CC LS7 heads
and GM LS9 276CC heads. I think I know what to expect from the MAST heads, but haven't heard much of the others. They are cheaper, not sure about power output though.
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Old Mar 1, 2016 | 10:25 PM
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May I offer another suggestion for your consideration.
Tony Mamo Ported TFS LS3's
300+ CFM @ .300", 350+ @ .400" 380+ @ .600"
all from an Intake Port less than 260 CC and a
Much better E/I Ratio!
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Old Mar 2, 2016 | 12:53 AM
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I have always been a fan of his stuff, so recommend away!
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Old Mar 2, 2016 | 10:54 PM
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Your combo is begging for some of his handy work!
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Old Mar 3, 2016 | 12:03 AM
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brodix here
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Old Mar 3, 2016 | 12:45 PM
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If you haven't already, take a look at this thread. Lots of information pertinent to your build.

https://ls1tech.com/forums/dynamomet...l-results.html
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Old Mar 3, 2016 | 12:48 PM
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Originally Posted by NAVYBLUE210
May I offer another suggestion for your consideration.

Tony Mamo Ported TFS LS3's.......
Aww man.....I gotta give Tony a call. I didn't know he did rectangular ports!

KW
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Old Mar 3, 2016 | 01:44 PM
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Originally Posted by KW Baraka
Aww man.....I gotta give Tony a call. I didn't know he did rectangular ports!

KW
Yep. Got a set on my 427. Tony is top notch!
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Old Mar 3, 2016 | 01:54 PM
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I still think you have some of the best heads out there... My 235's made 571/535 with a unported stock fast 92 and PTM 92 lol. Stick water pump as well. IMO you're crazy if you don't at least try them again with a engine that's healthy.
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Old Mar 4, 2016 | 05:20 PM
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Originally Posted by NAVYBLUE210
May I offer another suggestion for your consideration.
Tony Mamo Ported TFS LS3's
300+ CFM @ .300", 350+ @ .400" 380+ @ .600"
all from an Intake Port less than 260 CC and a
Much better E/I Ratio!
Never seen claimed @ .300" #s that high before.
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Old Mar 4, 2016 | 09:45 PM
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Wow thanks for that catch Jimbo!
My apologies!
The .400" should have been 300+ CFM
The .500" should have been 350+ CFM
The .600" was correct @ 380+ CFM
These were on a 4.125" Bore.
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Old Mar 5, 2016 | 04:28 AM
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Well. My shezzy noticed the airflow! Jk. Run with it!

Airflow is king !
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Old Mar 5, 2016 | 10:18 PM
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OP, which heads did you end up getting? I hope you chose the ones I like,LOL.
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Old Mar 6, 2016 | 02:09 AM
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Originally Posted by BOLO
OP, which heads did you end up getting? I hope you chose the ones I like,LOL.
I'm ordering Monday and it looks like the MAST 265CC LS7s.
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Old Mar 6, 2016 | 08:45 AM
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Originally Posted by 03EBZ06
I'm ordering Monday and it looks like the MAST 265CC LS7s.
Sounds good. Talk to Chris@MAST.
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Old Mar 8, 2016 | 03:27 PM
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Can't get em to answer the phone. Wtf
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Old Mar 8, 2016 | 07:18 PM
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Originally Posted by 03EBZ06
Can't get em to answer the phone. Wtf
Call Tony Mamo at Mamo Motorsports. He's a magician with getting heads to flow and make big power. AND he answers the phone!
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Old Mar 8, 2016 | 08:26 PM
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Originally Posted by 03EBZ06
Can't get em to answer the phone. Wtf
Did you try leaving a message for them to call you? Chris is usually prompt on getting back with the calls.
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Old Mar 8, 2016 | 08:40 PM
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Originally Posted by tadams72
Call Tony Mamo at Mamo Motorsports. He's a magician with getting heads to flow and make big power. AND he answers the phone!
LOL! What He Said!
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