Originally Posted by TheRabbit
with that being said (and i agree) what do you think is the better head. Big Duke or Big Chief?!? I don't know anybody that runs brodix and maybe that's for a reason :?: Both are used by some of the top name engine builders and Sonny's has a good package deal on Brodix.
And i've also heard of guys running a Pontiac head on a BBC???
David,
what bmf's do you have?, .. I can make the 385's flow about 460 with
an intake valve change and a little work, .
just did a set for Chris Uratchko that made a solid 1100 hp n/a single 4
what size engine do you have?
Rabbit,
the choice of heads has to do with several things, ..
if it's 18* I'd either use the Brodix 1803 casting or the new and VERY nice big victor as a base for porting, ..
if it's an all out effort then my 11* big chief can't be beat.
So their really isn't a "better head" per say, .. it has to do with
choosing a raw casting to build on based on the desired end result.
Roumors regarding one casting being better then the other, . truth is
most are good, and every one has it's own little issues.
Darts big chief castings are very good, but require a bunch of machine work
to be "race worthy", .. but that's why I own cnc machines, .. I use their 14* and 11* castings.
The Brodix castings are nice but some don't have the power potential, ..
but the 1803 is a nice part.
Edelbrock now has their own "big chief" 18* they call the Big Victor.
It's part of their "pro port" series of castings designed for
professional cnc shops. It's a VERY nice casting, strong, ..
everything in the right place and they are hipped.
The rocker layout is also what I would consider one of the best
for spread port style heads.
Within those castings we have several CnC port programs depending
on the application, I only custom cut parts.
whoever you end up choosing as your cylinder head guy, .. it's likely they
will have their own favorite.
hope this helps, ..
Curtis