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Factory cam specs for 1967 gtx 440 HP Motor #1124167
11/29/11 05:48 PM
11/29/11 05:48 PM
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massachusetts
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Provan Offline OP
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Can anyone get me the cam specs for the factory cam that came in the 67 gtx 440 hp motor..Thanks


76 DODGE VAN PRO STREET 67 DODGE CORONET R/T 480 STROKER
Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: Provan] #1124168
11/29/11 06:27 PM
11/29/11 06:27 PM
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Arizona
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az426john Offline
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Arizona
Short answer:

Intake Duration: 268 Degrees
Exhaust Duration: 284 Degrees
Overlap: 46 Degrees

Lift:

Intake: .458
Exhaust: .458

Data from Data sheet on Mopar Performance Cam P4452783 (replacement for stock cam)

Duration: 268/284 Degrees
Duration @0.050 228/241 degrees
Overlap: 46 Degrees
Center line: 115 Degrees
Lift:
Intake: 0.450"
Exhaust: 0.458"

Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: az426john] #1124169
11/29/11 07:26 PM
11/29/11 07:26 PM
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IL, Aurora
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ademon Offline
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Stock duration was more like 214 & 220 at .050

Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: Provan] #1124170
11/29/11 08:12 PM
11/29/11 08:12 PM
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Lincoln Nebraska
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RapidRobert Offline
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Could only find this in my 1967 "Glenns" manual. intake lift-.415" intake opens-19BTDC


live every 24 hour block of time like it's your last day on earth
Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: RapidRobert] #1124171
11/29/11 09:12 PM
11/29/11 09:12 PM

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It was MORE than enough for those bias ply tires!
No kidding...my first ride in a Mopar muscle car was a new 67 GTX 440 auto red with white interior
We were on the hwy doing about 50 MPH and when floored it smoked the tires like John Force and those tires were "singing" a few later we were almost Warp speed with the speedo sunk down around turn signal...
Ahhhhh.......That is what we all try and relive with these things--those kind of moments.

Last edited by crabman173; 11/29/11 09:17 PM.
Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: ] #1124172
11/29/11 09:23 PM
11/29/11 09:23 PM
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Canton, Ohio
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Sport440 Offline
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My 1970 Motors manual lists .450 lift intake and .465 lift exhaust for the 67 375 HP 440.

.425 and .435 for the standard 67 350hp 440

Last edited by Sport440; 11/29/11 09:24 PM.
Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: Sport440] #1124173
11/29/11 09:32 PM
11/29/11 09:32 PM
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Prospect, PA
BSB67 Offline
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Quote:

My 1970 Motors manual lists .450 lift intake and .465 lift exhaust for the 67 375 HP 440.

.425 and .435 for the standard 67 350hp 440




My 68 MM says the same thing (.450/.465), but my service manual says .458. Service manual also says 268/284.

Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: BSB67] #1124174
11/30/11 04:16 AM
11/30/11 04:16 AM
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Lincoln Nebraska
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RapidRobert Offline
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That is disturbing that alof of the published specs are different


live every 24 hour block of time like it's your last day on earth
Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: RapidRobert] #1124175
11/30/11 02:06 PM
11/30/11 02:06 PM
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dogdays Offline
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True, but even more disturbing is that fact that until recently ChryCo refused to give "duration at 50 lift" numbers AT ALL.
The written reason by one of my favorite whipping boys, Larry Shepard, translated to "You're too dumb to use 'duration at 50' and not confuse it with advrtised duration." This was implied, not stated directly. Boycott MOPAR cams!
There are dozens of better cams out there for almost any combination and use.

R.

Re: Factory cam specs for 1967 gtx 440 HP Motor [Re: dogdays] #1124176
12/01/11 12:52 PM
12/01/11 12:52 PM
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Valencia, España
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Quote:

True, but even more disturbing is that fact that until recently ChryCo refused to give "duration at 50 lift" numbers AT ALL.






http://victorylibrary.com/mopar/mpcam-tech-c.htm


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