Re: Mopar Commando heads
[Re: S/ST 3040]
#513032
11/06/09 09:03 AM
11/06/09 09:03 AM
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Joined: Sep 2004
Posts: 2,093 oberlin, Ohio
Rapid340
top fuel
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top fuel
Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
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I love seeing info like this, hard numbers for incremental changes. Thanks Vic.
1971 Factory Appearing Duster 340 11.000 @ 122 mph
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Re: Mopar Commando heads
[Re: Rapid340]
#513033
11/06/09 10:10 AM
11/06/09 10:10 AM
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Joined: Jul 2006
Posts: 4,595 On the south side of Nowhere
S/ST 3040
master
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master
Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
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Oh cool......there's 2 of you. I thought I'd put some stuff up that pertained to the original poster's question. It's a waste of my time to clean the head and flow it after every incremental change. I'll just finish these up and move on to the next job.
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Re: Mopar Commando heads
[Re: S/ST 3040]
#513034
11/06/09 10:50 AM
11/06/09 10:50 AM
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Joined: Nov 2003
Posts: 5,160 Texas
dannysbee
master
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master
Joined: Nov 2003
Posts: 5,160
Texas
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I thought the information was great. Please continue and show the end results.
Getting old just means you were smarter than some and luckier than others.
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Re: Mopar Commando heads
[Re: HEMIDARTS]
#513042
11/07/09 10:50 AM
11/07/09 10:50 AM
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Joined: Feb 2004
Posts: 6,257 acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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who's being negative? i have sets of these..large ports havent touched them yet.. if someone has data..by all means.. i dont have all the flow charts side by side. i was asking if his opinion was that moving or removing the pushrod pinch was worth it..or not.? I assume the "Idiot" question was directed at me..since iam the only one asking questions..or commenting on technical aspects.. I am no Idoit.. cheapst
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]
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Re: Mopar Commando heads
[Re: Dos Snails]
#513045
11/07/09 06:26 PM
11/07/09 06:26 PM
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Joined: Jul 2006
Posts: 4,595 On the south side of Nowhere
S/ST 3040
master
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master
Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
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For all the people who currently own a set of these Small Port Commandos or the aluminum Magnums...........there seems to be a problem with making these thing flow any air. Look at this picture. Apparently the thought was to run these exclusively with a hydraulic roller cam as the pushrod holes are .205" further from the manifold surface than my nasty old OEM heads, which incidentally, outflow these paper weights by 28 CFM. By them being machined as such, places them deeper in the port. Which makes the transition into the curved wall much more abrupt, upsetting the airflow in a bad way. Without relocating the pushrod, I don't see them being a candidate for a serious race application. Flow is 251.3 @ 500" right now.
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