Moderator: Team
Jimmy BellRicky Mcconathy wrote:It's threads like this that make me really respect ya'll "old timers"
I get to see Jimmy Bell fairly often and it's a real treat to hear some of the stories from the guys that have been in this industry for so long.
B/ED sure has come a long way.
Larry, as always, thanks for the great info.
ricky mcconathy
This thread is fast becoming near and dear to my heart as I am currently using a set of these castings, I bought them new from the local GM dealership back in 92/93 and truely cut my teeth porting these heads following "the Grump's" horsepower how to book with it's pictures and literature. (mine have the "pocket" where the crossover would be) I originally did a port match and bowl blend on them, then followed up with narrowing the guide bosses and a full port job. I finally had the opportunity to have one flowed, and it hit 262 CFM on the intake at .550" and flattened out, the exhaust hit 223 CFM at .500" and flattened out. This was at 28" on a 4.125 adapter with no pipe for the exhaust. The exhaust suprised me, the intake was disappointing.maxracesoftware wrote:Ed, i have also a bunch of Flow Data over the years onEd-vancedEngines wrote:A little off topic but not by much.
Larry,
Do you have any history on tests of the 034 cast BowTie Heads? I ask this here because I think both the 034 and the 292 Turbo were similar. Am I wrong?
Ed
the #034's Heads.
There are at least 4or 5 versions of these cast iron 034's in
the years they made them.
the first version is not enlarged outward on exhaust side of casting,
so it looks similar to old 292's or SBC heads except for small exh ports
the second version Chevy enlarged the water jacket side on exhaust/
sparl plug outside..so it has a very noticeable exterior , with more metal
around combustion chamber
the 3rd or 4th version was about the same,
but had a dip in intake flange casting where heat-riser was located
The #034 had a higher Ski-Jump Short Turn
with no water above intake ports + smaller CSA exh ports
i have 2 Band-sawed (1)034 and (2)292 heads i could Post pics of
later
Ed if you asked me that same question about 10 years ago,
i'd now exactly all the specifics
i ported a pair of #034's for Benoit's C/ED in 1980's,
according to 3-4 page article in National Dragster "Bayou Bullet"
it was the first C/ED to run in 7 second ET
set Record C/ED at 7.97 ET ??
he later ran 7.80's but not a Points Meet where the record could have
been reset..later switched over to B/ED with Pontiac-Brodix 23deg
raised runner heads 337CID or 338 CID ??
