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Found this (for stock LS7 purposes).
Should be a great build regardless of the comparison between the two companies. I just got sold on AHP based reputation,etc... and then I met them and they are the real deal.
Agreed. 4.155 bore will allow head to flow more air. These Archangel 275 numbers are right at Mamo 265 numbers.
Yup. They're stout for sure. The Brodix BR 273 continue to intrigue me, as they flow the same as the mamo 265. Slightly more port volume, but still impressive. To do much better than these offerings, you get into 300+cc runners. LSX-DR, LS-R, Mozez, etc.
Anyway, it's good to see some more offerings in that 410 cfm range with smallish ports (compared to stock castings ported out)
Yup. They're stout for sure. The Brodix BR 273 continue to intrigue me, as they flow the same as the mamo 265. Slightly more port volume, but still impressive. To do much better than these offerings, you get into 300+cc runners. LSX-DR, LS-R, Mozez, etc.
Anyway, it's good to see some more offerings in that 410 cfm range with smallish ports (compared to stock castings ported out)
Wish I knew where I put the flow #'s for my Frankenstein BR7's. I can only speculate for now but thought they were ~421cfm @ .750 with a 272cc runner
Also WCCH 290cc port 430cfm but all pro casting....
Smart man buy's Brodix big springs no cnc and ask Richard for the all pro 290 port. Can't say it won't work BS heads are super thick in the runner. Cheaper
Who told you that the heads flowed 421 to start with? This is an excellent example of spending time developing a great intake port program. Not sure what Frankenstein put into this time wise, but as I’ve posted in the past Tony spent a year of his life, and I’m not talking about 8 hour days either, developing his intake port program. He does the same thing to the BR7 heads as he does the TFS castings. His V2.0 is at 415 CFM at just over .700”. With a smallish port, that means velocity is super high which equates to unmatched cylinder fill at low rpm and lift also. Driveability is the key here. You won’t have to turn 8500 to make power. On a dyno chart, torque graph is as flat as a table top.
Last edited by Che70velle; 05-22-2019 at 03:13 PM.
Reason: Smellcheck
Chris Frank heads have always performed .... Tony heads are good but basic as is tfs casting....I can go further about the CSA of the 265 head ...which is Never talked about... It's just a head and Nothing changes... Listen to the post or thread which I posted, when Darin spoke about 1& half.... it's all CSA and the combination..265 port Would not support a higher hp.... Port to small to make real hp ..may be good for lower tq. One port size doesn't fit all. Added with lift is hp.700 lift is child's play. And areas Needed. .combo dependant. Again 1 size don't fit all..
05-16-2019, 05:33 PM
Just point it backwards