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Re: Some B1 Original pics.........
[Re: kens avenger]
#105605
10/04/08 05:17 PM
10/04/08 05:17 PM
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Joined: Jan 2003
Posts: 5,484
SoCal
Brian Hafliger
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,484
SoCal
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Quote:
Real good #'s with such little port work 
315cc's and [Email]416@800[/Email] nice.. some in here said that a M/C head will only go 420cfm...
nice work brian .Thanks .let us know more as you go along..
true #'s
To me, the most impressive # is the .400 #. It's very hard to keep that # high, and still keep the port pulling. Usually I have give up some mid lift for high lift but I've learned a few things so they seem to be working for my porting syle.
Another thing I like to point out, is the exhaust port could be made alot bigger, especially at the bowl/roof transition, and it would flow more...but I like smaller high flowing high air speed ports for the ex. I also flowed it at 42" to see how it responds and it did very well with the pipe.
The ex. port from the flange to the guide boss is almost the exact same size as it was OOTB.
If we were going for more rpm, or max effort, or nos then the ex. port would have been bigger for sure.
Oh, and even though it looks like not very much work, it was alot of grinding to get them to the finished size and shape. The initial work was not too bad at all, very simple stuff...but the finished port got quite a bit bigger. I'd guess that the port cc after the initial port work was around 295-300cc.
There's a little more grinding on the 315cc port than a typical Indy-1 port job.
But it's worth it for sure!!
Brian
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Re: Some B1 Original pics.........
[Re: Brian Hafliger]
#105606
10/04/08 06:40 PM
10/04/08 06:40 PM
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Joined: Jan 2003
Posts: 19,361
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,361
Las Vegas
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A fully ported MC head done properly will go in excess of 420 with out any issues. Heck My originals were at 422...
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: Some B1 Original pics.........
[Re: Al_Alguire]
#105607
10/05/08 02:17 PM
10/05/08 02:17 PM
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Joined: Dec 2004
Posts: 1,717
Rancho Cucamonga, Calif.
PUNK
top fuel
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top fuel
Joined: Dec 2004
Posts: 1,717
Rancho Cucamonga, Calif.
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Ive seen some MC heads with a wild oval port job go into the 450 cfm range and they powered my friends Cuda into the 8.60 range. THat car would have gone 40s with some tuning. He sold the engine though. Someone is a lucky buyer.
10.53 @ 125mph. 1.37 60 foot. Caltracs and Monoleafs, AFCO shocks.
Heads by INDIO MOTOR MACHINE; IMM.
CP Pistons, PC Carbs.
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Re: Some B1 Original pics.........
[Re: PUNK]
#105608
10/05/08 03:01 PM
10/05/08 03:01 PM
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Joined: Jan 2008
Posts: 795
Glendale Az
Darryls-Demon
super stock
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super stock
Joined: Jan 2008
Posts: 795
Glendale Az
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Quote:
Ive seen some MC heads with a wild oval port job go into the 450 cfm range and they powered my friends Cuda into the 8.60 range. THat car would have gone 40s with some tuning. He sold the engine though. Someone is a lucky buyer. [/
So how much quicker do you think that motor will be in the tube chassis cuda its going into? 
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Re: Some B1 Original pics.........
[Re: Darryls-Demon]
#105609
06/05/09 10:35 PM
06/05/09 10:35 PM
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Joined: Feb 2007
Posts: 6,295
U.S.
moparniac
master
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master
Joined: Feb 2007
Posts: 6,295
U.S.
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what were the valve sizes in this head build ? and anyone have a flow sheet on a ported set...
Last edited by *wedgie*; 06/05/09 10:36 PM.
Mopar Performance
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Re: Some B1 Original pics.........
[Re: Al_Alguire]
#105611
06/06/09 02:37 AM
06/06/09 02:37 AM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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Brian, in your opinion, how much would your basic stock rocker arm head pick up if you unshrouded the valves to use the head on a 4.5 bore? i cant get over what the chambers look like on that head. never seen this post before
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Post deleted by Defbob
[Re: Brian Hafliger]
#105623
08/28/09 09:16 PM
08/28/09 09:16 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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