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Re: Chapman Stage VI 260 questions [Re: JohnRR] #241995 03/04/09 07:49 PM 03/04/09 07:49 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: ... the your current head stud set will work EXCEPT you need 4 studs that are maybe a .5" LONGER ( the ones that come up the middle of the siamesed intake ports)... I looked at the pictures of the set you had and see what you and Streetwize are saying about the bolts 'tween the intake ports being a little longer. The stock ones aren't long enough, unlike what Mike at Chapman told me.

Re: Chapman Stage VI 260 questions [Re: Von] #241996 03/04/09 07:50 PM 03/04/09 07:50 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Guess they went up. That is what they told on Dec. 23. I like your prices better...

Re: Chapman Stage VI 260 questions [Re: BradH] #241997 03/04/09 07:59 PM 03/04/09 07:59 PM
Joined: Jan 2003 Posts: 9,875 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,875 Weddington, N.C.	Thinking about the rocker offest again, I believe the 285s and the 260's are the same casting which means they probably would specify the offset rocker....but you'll have quite a bit more Whittle room if you care to clearance the pushrods to fit.....I used a bridgeport to do mine. Again, from first hand mock ups an RB flat tappet will have a much straighter pushrod route than on a roller Low deck. WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Chapman Stage VI 260 questions [Re: BradH] #241998 03/05/09 09:08 AM 03/05/09 09:08 AM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: Quote: ... the your current head stud set will work EXCEPT you need 4 studs that are maybe a .5" LONGER ( the ones that come up the middle of the siamesed intake ports)... I looked at the pictures of the set you had and see what you and Streetwize are saying about the bolts 'tween the intake ports being a little longer. The stock ones aren't long enough, unlike what Mike at Chapman told me. Brad I was going to use studs , the center studs would work , but the stud did not protrude thru the nut at all , it only went half , maybe 3/4 the way thru the nut , I like them to stick out a few threads so I did some searching and found the longer stud , I sent them along with the heads to CBK , maybe he has the number handy ? Will the stock ones work , probably , but not for me . Are those prices for a PAIR ???

Re: Chapman Stage VI 260 questions [Re: JohnRR] #241999 03/05/09 09:21 AM 03/05/09 09:21 AM
Joined: Oct 2003 Posts: 3,698 NE Oklahoma V Von master
Von master V Joined: Oct 2003 Posts: 3,698 NE Oklahoma	[quote Are those prices for a PAIR ??? Yep. 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.

Re: Chapman Stage VI 260 questions [Re: Von] #242000 03/05/09 05:27 PM 03/05/09 05:27 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	FWIW, based on what Chapman is selling them for, plus all the stuff I've figured out will be needed to do the complete swap, this upgrade would cost me right about $4000. For an old 20-footer street car that's probably only worth $15K, that's a hard # to bite down on w/ a smile.

Re: Chapman Stage VI 260 questions [Re: BradH] #242001 03/05/09 05:46 PM 03/05/09 05:46 PM
Joined: Jan 2003 Posts: 9,875 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,875 Weddington, N.C.	I got my heads for 2600 a pair a couple yrs ago....all in I have maybe 3600.00....a lot sure but this is the first wedge I've ever had that felt like a big inch Hemi from the driver's seat in terms of powerband...and like I said Brad the only onewhere I've ever had to rely on the tach to shift because it won't lay over up top like most street wedges will. I've driven some -1 and even some B1 headed track cars that were really strong from 4500-5000 up, but none have had the floor to cieling powerband like the Chaps. WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Chapman Stage VI 260 questions [Re: BradH] #242002 03/05/09 05:54 PM 03/05/09 05:54 PM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: FWIW, based on what Chapman is selling them for, plus all the stuff I've figured out will be needed to do the complete swap, this upgrade would cost me right about $4000. For an old 20-footer street car that's probably only worth $15K, that's a hard # to bite down on w/ a smile. yikes ... But Brad you know you don't do this for RESALE value ... Plus you sold your A12 , this would be a drop in the bucket ... DO IT , you know you want to ...

Re: Chapman Stage VI 260 questions [Re: JohnRR] #242003 03/05/09 06:44 PM 03/05/09 06:44 PM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: ... you sold your A12 , this would be a drop in the bucket ... Well, it would be a noticeable drop of what's left from the A12 sale $$$ after the family finances took a big chunk of it. Quote: DO IT , you know you want to ... Yeah... just don't want to PAY for it.

Re: Chapman Stage VI 260 questions [Re: BradH] #242004 03/05/09 10:46 PM 03/05/09 10:46 PM
Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt. F fast68plymouth I Live Here
fast68plymouth I Live Here F Joined: Jan 2003 Posts: 14,496 So. Burlington, Vt.	refresh my memory....the 260's are sort of MW size? what intake would you be planning on using? that big cfm gain on the heads would get noticably reduced once you bolted a std port M1 onto them. on the other hand, IMO the large cross section MW manifolds like a 440-2 will hamper how well the motor hits the converter with the stall speed you're running. FWIW, i wouldnt be looking for 600ft/lbs out of that combo on our dyno, but i wouldnt be shocked at 670hp(depending on what the intake manifold choice was). that EZ295 headed 448 i built a few years ago made over 680hp with the same CR and cam that you have, but only made about 560tq. 68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads

Re: Chapman Stage VI 260 questions [Re: fast68plymouth] #242005 03/06/09 12:08 AM 03/06/09 12:08 AM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: refresh my memory....the 260's are sort of MW size? should be stock wedge port window ???

Re: Chapman Stage VI 260 questions [Re: JohnRR] #242006 03/06/09 09:05 AM 03/06/09 09:05 AM
Joined: Jan 2003 Posts: 8,180 Detroit, MI CokeBottleKid master
CokeBottleKid master Joined: Jan 2003 Posts: 8,180 Detroit, MI	I think the 235s are closer to stock window, 260s are sorta in-between MW and stock.

Re: Chapman Stage VI 260 questions [Re: CokeBottleKid] #242007 03/06/09 09:31 AM 03/06/09 09:31 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: I think the 235s are closer to stock window, 260s are sorta in-between MW and stock. Are yours still off the engine where you can measure the port size? I was under the assumption that they used a standard port entry... first time I've heard they're "in between" standard and MW. I couldn't really tell from looking at the pictures of your heads that I took in '05 when John had them at Carlisle.

Re: Chapman Stage VI 260 questions [Re: fast68plymouth] #242008 03/06/09 09:34 AM 03/06/09 09:34 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: what intake would you be planning on using? I have the choice between the ported M1 we dynoed the engine w/ and a Victor 440 with whatever port work I decided to do on it. And, yes, I was expecting the intake choice would be a compromise between max HP and keeping the torque & throttle response up.

Re: Chapman Stage VI 260 questions [Re: BradH] #242009 03/06/09 09:48 AM 03/06/09 09:48 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	I tried to settle this by the "scientific method" of flipping a coin: - Heads => buy the heads - Tails => cover my tail financially and save my $ Well, I flipped... and... it... came... up... heads. And, yet, I still don't feel 100% committed about buying them. So, that tells me I'm not ready to drop the cash on 'em. Well, it was a cool idea in theory.

Re: Chapman Stage VI 260 questions [Re: CokeBottleKid] #242010 03/06/09 10:05 AM 03/06/09 10:05 AM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: I think the 235s are closer to stock window, 260s are sorta in-between MW and stock. Thanks Eric for the correction , since I never got that far I never really checked it against a gasket .

Re: Chapman Stage VI 260 questions [Re: BradH] #242011 03/06/09 10:07 AM 03/06/09 10:07 AM
Joined: Jan 2003 Posts: 75,004 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 75,004 U.S.S.A.	Quote: I tried to settle this by the "scientific method" of flipping a coin: - Heads => buy the heads - Tails => cover my tail financially and save my $ Well, I flipped... and... it... came... up... heads. And, yet, I still don't feel 100% committed about buying them. So, that tells me I'm not ready to drop the cash on 'em. Well, it was a cool idea in theory. Sell the stage 6's ??? I could also use another set of heads that will never see the light of day once they got in my basement ... Plus those would actually bolt onto an engine ??? kidding ...

Re: Chapman Stage VI 260 questions [Re: JohnRR] #242012 03/06/09 10:29 AM 03/06/09 10:29 AM
Joined: Jan 2003 Posts: 9,875 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,875 Weddington, N.C.	Brad, I'd be willing to let you try out my 285's on your motor if you want to come down for a week-end sometime in the spring, we can run at the new Charlotte track or at a Test&Tune at Rockingham, the only wild card would be whether your pushrod length will work with my rocker set-up (it should). You know that Intake you sold me (which I have since sold) would be about perfect for the Chap 260's...those heads had a real nice port to plenum taper on them. WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Chapman Stage VI 260 questions [Re: JohnRR] #242013 03/06/09 11:22 AM 03/06/09 11:22 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: Sell the stage 6's ??? I could also use another set of heads that will never see the light of day once they got in my basement ... Cool... I'll give you the address where you can send the $1000 deposit for them. We can work out the rest of the details (final price, etc.) later, right? Quote: Plus those would actually bolt onto an engine ??? Oh, you simply need to apply more "precision" work to solve that issue.

Re: Chapman Stage VI 260 questions [Re: Streetwize] #242014 03/06/09 11:23 AM 03/06/09 11:23 AM
Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually B BradH OP Taking time off to work on my car
BradH OP Taking time off to work on my car B Joined: Jan 2003 Posts: 15,439 Val-haul-ass... eventually	Quote: I'd be willing to let you try out my 285's on your motor if you want... That's a generous offer. I doubt I'd be able to take you up on it, but it's appreciated, regardless.

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