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406 Build

2K views 6 replies 3 participants last post by  my87Z 
#1 ·
Looking To Build A 406 11.1 COMP With 6in Rods Afr 210 Comp Heads Hyd Roller 252/258 110 Lsa 612 Lift W1.5 Roller Rockers Msd Distributor Looking To Make 550-600hp --550 -570 Torque @5000rpm Can It Be Done With Combo--thanks Johnny
 
#3 · (Edited)
cobalt327 said:
I thought you already had a 406- the one you wanted desktop dynoed. And what happened to the 460 SBC deal? Too much going on for me.
I STILL HAVE IT TECHINSPECTOR DONE THE DESKTOP THING IT SHOWED I NEED MORE CAM IT SHOW MY MOTOR MAKING 500 TQ THATS GOOD FOR A CAR BUT NOT FOR WHAT I WANT IT FOR AN FROM WHAT I SEEN ON THE NET AFR HEADS SEEM TO GIVE WHAT THEY SAY SO THOUGHT ID GIVE THIS COMBO A TRY IF YOU GUYS THINK IT WILL GIVE ME THE POWER I WANT AS FOR THE 460 SBC NOT HAPPENING TO MUCH $$$$$$$
 
#4 ·
the combo you have listed sounds like it should make about 550-565hp and 525-540tq i think much more than this will be a bit of a push. now if you have some decent work done to those heads (by a pro) so they flow upwards of 315-320cfm at .600" (this should be about a 10-15% increase over "out of the box") and possiblely have them milled about .040-.050" (what ever they can hadle without messing with the intake mounting area) to get you around 11.7:1 then i think you would be comming close to 580-590hp/540-550tq.
 
#5 ·
my87Z said:
the combo you have listed sounds like it should make about 550-565hp and 525-540tq i think much more than this will be a bit of a push. now if you have some decent work done to those heads (by a pro) so they flow upwards of 315-320cfm at .600" (this should be about a 10-15% increase over "out of the box") and possiblely have them milled about .040-.050" (what ever they can hadle without messing with the intake mounting area) to get you around 11.7:1 then i think you would be comming close to 580-590hp/540-550tq.

WELL FROM WHAT I READ ON OTHER SITES THEY FLOW WHAT THEY SHOW IN THE CATALOG NOW YOU CAN READ ANYTHING AN PEOPLE SAY ANYTHING-- I GOT IN SUCH A HURRY I FORGOT TO SAY THE INTAKE IS A VICTOR JR -950 CARB
 
#6 · (Edited)
my87Z said:
the combo you have listed sounds like it should make about 550-565hp and 525-540tq i think much more than this will be a bit of a push. now if you have some decent work done to those heads (by a pro) so they flow upwards of 315-320cfm at .600" (this should be about a 10-15% increase over "out of the box") and possiblely have them milled about .040-.050" (what ever they can hadle without messing with the intake mounting area) to get you around 11.7:1 then i think you would be comming close to 580-590hp/540-550tq.

AN THANKS FOR YOUR SERVICE :thumbup:
 
#7 ·
just what you said dont believe everything you read, those magazines and shows are paid by these companies to "pitch" their parts. every time you watch a car show (TV), at the end they all are pitching parts ("parts segment") i've learned that head manufacuters have so many tricks they can do in order to achive attractive numbers to advertise it "ain't" funny. i have learned to take all those advertised flow numbers and subtract 5%. i just look up the AFR 210 Comp heads and at .600 they are right at 300cfm now take 5% off = 285cfm this sound a bit more realistic.

take my experiance for example, i bought a set of DART iron eagle platinum 200cc heads that were advertised to flow 284cfm @ .500" + 292@ .600. well i had them taken apart (by a performance shop) and tested on a 4.030 bore plate and they only came out with 263cfm @ .500" + 274 @ .600". i had them worked over and put back together and retested the result ended up being 285cfm @.500" and 297@ .600" but that was after about another 800.00 invested into them. after all that i am still a very happy DART customer
 
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