Re: Chapman Stage VI port CSA?
[Re: Mjollnir]
#170540
12/23/08 12:09 PM
12/23/08 12:09 PM
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Joined: Jan 2003
Posts: 9,893 Weddington, N.C.
Streetwize
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I've heard a rumor from 2 different sources that Mike Chapman is selling them direct for quite a substantial discount now that the Victors a EZ's have hit the market. I'd like to have another pair for a friend says he wants a clone of my 517B combo but in an RB. I do know that I paid significantly under what a comparable CNC'ed INDY or Victor would have cost "all in".
Last edited by Streetwize; 12/23/08 12:15 PM.
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Re: Chapman Stage VI port CSA?
[Re: Streetwize]
#170541
12/23/08 12:22 PM
12/23/08 12:22 PM
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Joined: Oct 2003
Posts: 3,698 NE Oklahoma
Von
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NE Oklahoma
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Quote:
I've heard a rumor from 2 different sources that Mike Chapman is selling them direct for quite a substantial discount now that the Victors a EZ's have hit the market.
Just called Chapman. The bare 260cc castings are 2600, with valves 2800 and complete are 3200.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Chapman Stage VI port CSA?
[Re: Von]
#170542
12/23/08 12:31 PM
12/23/08 12:31 PM
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Joined: Dec 2003
Posts: 3,957 West Coast, CA
Troy
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....that is alot or money for a pair of heads!!
....there is nothing like driving my 1968 Hemi Dart around town and having people looking at you like you're nuts!!
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Re: Chapman Stage VI port CSA?
[Re: Troy]
#170543
12/23/08 12:44 PM
12/23/08 12:44 PM
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Joined: Jan 2003
Posts: 9,893 Weddington, N.C.
Streetwize
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Troy, I agree they ain't cheap....but by the time you get 380 cfm out of anything comparable it's I think it's probably going to cost you about that much or more either CNC'ed out of the box or buying heads like -1's or Vics and getting them CNC'ed. they were always great heads....but the original "only show in town" cost was way too high....now that they are in line on the cost and there's more competition out there I think they could compete head to head pretty well...I'd actually like to see Mike Super-size and even take them out a little bigger....with a 2.30 Intake valve they look to me like they could go over 325cc and 400cfm with meat left to spare the walls are pretty thick and the exhaust port looks like it could be opened up (if there's enough water jacket left to work with). Plus the Zeus castings are american made and machined and I know if you're doing a roller the flat milled billet pedestals are much stronger and less prone to flex than an aluminum cast in Shaft pedestal....Not a big deal with street type cams but if you're doing a heavy seat/open pressure roller that's a big advantage.
Last edited by Streetwize; 12/23/08 01:02 PM.
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Re: Chapman Stage VI port CSA?
[Re: Streetwize]
#170544
12/23/08 12:52 PM
12/23/08 12:52 PM
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Joined: Oct 2005
Posts: 162 Centerville, MN
schwep
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Quote:
I do know that I paid significantly under what a comparable CNC'ed INDY or Victor would have cost "all in".
I believe it's all relative...If starting from scratch - The MW Victors are a heck of a value if you intend on running a top shelf rocker such as T&D. In time, more rocker choices will become available.
Under 3G's for a pair of Victor MW heads CNC'd with valves that flow 370ish - is not too shabby...
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Re: Chapman Stage VI port CSA?
[Re: Get-X]
#170546
12/23/08 01:23 PM
12/23/08 01:23 PM
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Joined: Jan 2003
Posts: 9,893 Weddington, N.C.
Streetwize
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Get-X,
All the Chapman specific castings come CNC'ed.
scwep....the point about the rockers is valid, however I would still think even the best rockers might be compromised by a cast-in pedestal.
Last edited by Streetwize; 12/23/08 01:26 PM.
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Re: Chapman Stage VI port CSA?
[Re: Streetwize]
#170547
12/23/08 04:49 PM
12/23/08 04:49 PM
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Joined: Feb 2007
Posts: 6,295 U.S.
moparniac
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with the changes needed I would say the chapman heads and indy CNC 325 ez head are about the same...
Mopar Performance
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Re: Chapman Stage VI port CSA?
[Re: Streetwize]
#170549
12/23/08 05:22 PM
12/23/08 05:22 PM
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Joined: Oct 2005
Posts: 162 Centerville, MN
schwep
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Posts: 162
Centerville, MN
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Quote:
scwep....the point about the rockers is valid, however I would still think even the best rockers might be compromised by a cast-in pedestal.
Yup, I agree. That said, at what point does deflection due to cast-in rocker stands become an issue? Beyond what limits of lift, spring pressure, rpm, etc.?
Not trying to get pokey or confrontational...Just asking.
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