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Re: airwolf sbm 220 heads!!!! for a sb mopar
[Re: Streetwize]
#1300140
01/01/13 07:18 PM
01/01/13 07:18 PM
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Joined: Mar 2007
Posts: 3,300
Northern Indiana
Dunnuck Racing
master
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master
Joined: Mar 2007
Posts: 3,300
Northern Indiana
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Quote:
Keith,
But by that reasoning, wouldn't a SB Chevy or Windsor Ford be at a HP DISADVANTAGE because neither of those motors have the valve centerlines at the bore centerline like the mopar does?
They DO have a disadvantage in that respect,but they have the advantage on port size and shape. Bryces Chevy build had better flowing heads and bigger bores. That is why I would like to see similar bore sizes tested between the two.
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Re: airwolf sbm 220 heads!!!! for a sb mopar
[Re: Dunnuck Racing]
#1300141
01/01/13 08:29 PM
01/01/13 08:29 PM
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Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
rickstershemi
master
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master
Joined: Jul 2006
Posts: 9,366
Lehigh Acres, Florida
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Quote:
Quote:
Keith,
But by that reasoning, wouldn't a SB Chevy or Windsor Ford be at a HP DISADVANTAGE because neither of those motors have the valve centerlines at the bore centerline like the mopar does?
They DO have a disadvantage in that respect,but they have the advantage on port size and shape. Bryces Chevy build had better flowing heads and bigger bores. That is why I would like to see similar bore sizes tested between the two.
Is someone contemplating a build for Cut's small-block race that's being yacked about over on the bullit.....??????
Rickster
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Re: airwolf sbm 220 heads!!!! for a sb mopar
[Re: rickstershemi]
#1300142
01/02/13 10:26 AM
01/02/13 10:26 AM
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Joined: Jan 2003
Posts: 9,876
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,876
Weddington, N.C.
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Vic, Interestingly, Bryce's published flow numbers for the Mopar 220's was on a 4.125 bore so I expect the actual flow in the 4.03 bore 633 hp dyno 408 would have been a bit less than the advertised numbers. On the LS I guess I forgot about the 427" Z06 motor....my bad but that one is kind of a special case that is few in number and only resides in Vette's. does Dart or someone make a 4.125" bore aluminum aftermarket block? I know there are a few iron ones. I have an 06 Trailblazer SS with the LS2 I may look at upgrading someday. Right now it's my tow vehicle 
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Re: airwolf sbm 220 heads!!!! for a sb mopar
[Re: DJVCuda]
#1300145
01/02/13 04:06 PM
01/02/13 04:06 PM
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Joined: Jan 2003
Posts: 9,876
Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,876
Weddington, N.C.
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Yes, that's no doubt very true.
But over 30+ years now I can pretty much look at a port or compare 2 ports side by side and fairly accurately predict the outcomes. I can pretty much do it blindfolded by touch and tell what kind of power the head will make.
The interesting thing is I think I learned more about Mopar heads from going back and forth to them after working with several other makes and wedge layouts.
Last edited by Streetwize; 01/02/13 07:08 PM.
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Re: airwolf sbm 220 heads!!!! for a sb mopar
[Re: Streetwize]
#1300147
01/03/13 07:30 AM
01/03/13 07:30 AM
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Joined: Aug 2003
Posts: 11,179
Atco NJ
DJVCuda
I Live Here
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I Live Here
Joined: Aug 2003
Posts: 11,179
Atco NJ
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Quote:
Yes, that's no doubt very true.
But over 30+ years now I can pretty much look at a port or compare 2 ports side by side and fairly accurately predict the outcomes. I can pretty much do it blindfolded by touch and tell what kind of power the head will make.
The interesting thing is I think I learned more about Mopar heads from going back and forth to them after working with several other makes and wedge layouts.
How true that is. The machinist I worked with showed me a lot of that. He showed a few obvious differences a novice would pass right over such as dog boning in the intake runners and such. Very interesting stuff.
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