Posted By: Provan
Factory cam specs for 1967 gtx 440 HP Motor - 11/29/11 09:48 PM
Can anyone get me the cam specs for the factory cam that came in the 67 gtx 440 hp motor..Thanks
Factory cam specs for 1967 gtx 440 HP Motor
Posted By: az426john
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/29/11 10:27 PM
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"
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"
Posted By: ademon
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/29/11 11:26 PM
Stock duration was more like 214 & 220 at .050
Posted By: RapidRobert
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 12:12 AM
Could only find this in my 1967 "Glenns" manual. intake lift-.415" intake opens-19BTDC
Posted By: Anonymous
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 01:12 AM
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.
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.
Posted By: Sport440
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 01:23 AM
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
.425 and .435 for the standard 67 350hp 440
Posted By: BSB67
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 01:32 AM
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.
Posted By: RapidRobert
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 08:16 AM
That is disturbing that alof of the published specs are different
Posted By: dogdays
Re: Factory cam specs for 1967 gtx 440 HP Motor - 11/30/11 06:06 PM
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.
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.
Posted By: NachoRT74
Re: Factory cam specs for 1967 gtx 440 HP Motor - 12/01/11 04:52 PM
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