I was doing some research. Here's to helping the search engine. These are the major brands.. I'm probably missing a couple.

Here's the stock LS1/LS6 style head flow#'s. Stock 853 Casting
LIFT ......... .100", .200", .300", .400", .500", .600", .625"
Intake..........67.....122....178....215.....219.. ..227....227
Exhaust........52......97.....133....156.....170.. ..180....180

PRC Stage 1
LIFT ...... .100", .200", .300", .400", .500", .600", .625"
Intake ......72 ....149....205... 255... 287... 307.... 310
Exhaust.....63.....121....154....191....214....220 .....228

PRC Stage 2
LIFT ...... .100", .200", .300", .400", .500", .600", .625"
Intake.......75.....151....209....260.....293....3 15....318
Exhaust.....66.....124....160....194.....217....22 7....234

PRC Stage 2.5
LIFT ...... .100", .200", .300", .400", .500", .600", .625"
Intake.......75.....151....209....260.....293....3 15....318
Exhaust.....66.....124...160.....194.....217....22 7....234


Trick Flow heads
Lift .........100", .200", .300", .400", .500", .600"
Intake......138....219....273....306....315.....32 2
Exhaust....115....176....228....250....258.....263


AFR 205s with 57cc chamber (Thunder Racing)
Lift.........200", .300", .400", .500", .550", .600"
Intake.....158,.. 220,.. 264,.. 285,.. 296,.. 300
Exhaust.. 122,.. 178,.. 217,.. 232,.. N/A,.. 241 (with pipe)


AFR Mongoose Street head 205 Intake Runner66cc oir 76cc Chamber
Lift.........200", .300", .400", .500", .600"
Intake.....140...200.....251....281....298
Exhaust.. 112...170.....203....221....230


Dart 205cc Heads
Lift ........200", .300", .400", .500", .550"
Intake....156....215....258....290.....296
Exhaust..109....154....187....205.....210


Dart 225cc Heads
Lift ........200", .300", .400", .500", .550", .600"
Intake.....144....202.....254....290....290....313
Exhaust...109....154.....187....205.....210....214


Edelbrock RPM Heads 64cc & 70cc Chamber
Intake runner170cc, Exhaust runner 60cc
Lift.........100", .200", .300", .400", .500", .600"
Intake......72....134....188....224.....233....233
Exhaust.....61...105....140....160.....172....179

Edelbrock 23* Heads71cc Chamber
Intake runner 212cc, Exh Runner 60cc
Lift.........100", .200", .300", .400", .500", .600"
Intake......72....134....188....224.....233....233
Exhaust....61....105....140....160.....172....179

Patriot Performance 64cc Chamber 23*
Lift.........100", .200", .300", .400", .500", .550", .600"
Intake.......70....132....180....220....244....250 ....260
Exhaust.....52.....94.....127....162....183....190 ....195

L92 Head Info

Found the ARCHIVE of head #'s!
http://www.purplesagetradingpost.com...%20Performance

 

What bore were these flowed at? Were they all flowed at 3.90 bore or were some flowed at 4.00" bore or even 4.125" bore?

First of all, the Trickflow heads were obviously flowed with a pipe (as you can tell by the crazy exhaust numbers), but you gave no indication of that... Awesome .200 lift flow numbers on those heads, btw.

Secondly, advertised flow numbers mean nothing... My Dart 225s were flowed by Meaux Racing out of the box and flowed 297cfm @ .600 lift and still put down 471rwhp... A far cry from 313 cfm.

Lastly, why the **** did you include regular 23 degree SBC heads in your list?

Anyway... thanks for the info.............as awry as it may be.



Just f-in with ya, bud

Mike

 

i need some 6.0 / 317 casting flow numbers