Re: Old school 509 purple shaft cam specs.
[Re: cudaman1969]
#3207030
01/21/24 10:49 PM
01/21/24 10:49 PM
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RoadRunnerLuva
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Back in the late '80's...I had the "677" MP cam in my 440 powered '69 300 'vert. Stock block/heads, just a three angle valve job, and fresh valve train. 10.1 comp. and headers. We used a reconditioned CH4B intake, with a Holley 650. Engine ran out of steam at 4,500ish RPM. A few months later, we swapped out to the .509 cam, installed at .104 degrees, and a new 3310 750 Holley. What a huge night and day difference the way that car ran. With that combo (and a 3.91 sure grip)... It ran 14 teens -low 20's @99mph in the quarter mile..on street tires and full 2-1/2" exhaust. Won a few street races as well, including against a new (at the time) turbo T type Buick Regal. Mr. Regal was shocked and saddened that a "big boat" had kicked his ass! You changed at least two things, the cam and the carb. Any idea what made the biggest difference? I would say they both made a big difference, but that .509 cam was perfect, for that combo. If that same combo was in an A body, it would have been a high 11 second car...IMO. My Duster 383 with that cam carb combo went 11.65 118, st Hemi vert Forgot to mention, converter in my 300 was a Turbo Action unit... I don't remember the part number, but it was a 3000-3500 stall iirc. Trans was all stock except for the converter, and a T/A mild shift kit.
Plymouth Makes It!
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Re: Old school 509 purple shaft cam specs.
[Re: cudaman1969]
#3207032
01/21/24 10:56 PM
01/21/24 10:56 PM
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Joined: Jan 2003
Posts: 5,389 Planet Earth
RoadRunnerLuva
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Back in the late '80's...I had the "677" MP cam in my 440 powered '69 300 'vert. Stock block/heads, just a three angle valve job, and fresh valve train. 10.1 comp. and headers. We used a reconditioned CH4B intake, with a Holley 650. Engine ran out of steam at 4,500ish RPM. A few months later, we swapped out to the .509 cam, installed at .104 degrees, and a new 3310 750 Holley. What a huge night and day difference the way that car ran. With that combo (and a 3.91 sure grip)... It ran 14 teens -low 20's @99mph in the quarter mile..on street tires and full 2-1/2" exhaust. Won a few street races as well, including against a new (at the time) turbo T type Buick Regal. Mr. Regal was shocked and saddened that a "big boat" had kicked his ass! You changed at least two things, the cam and the carb. Any idea what made the biggest difference? I would say they both made a big difference, but that .509 cam was perfect, for that combo. If that same combo was in an A body, it would have been a high 11 second car...IMO. My Duster 383 with that cam carb combo went 11.65 118, st Hemi vert That's awesome! You're Duster went mid 11's with that combo! Was it a street car also?
Plymouth Makes It!
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Re: Old school 509 purple shaft cam specs.
[Re: Sniper]
#3207034
01/21/24 11:02 PM
01/21/24 11:02 PM
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RoadRunnerLuva
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Never ran the 509 cam, though I did run the old Street Hemi grind in my 64 300, 750 carb, 4.10 gears and a stick car too. I miss that car, many a 454SS and Iroc Z got spanked with it. How much did your '64 300 weigh? I always got a kick out of people's reactions when they got spanked by a big C body!
Plymouth Makes It!
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Re: Old school 509 purple shaft cam specs.
[Re: RoadRunnerLuva]
#3207037
01/21/24 11:20 PM
01/21/24 11:20 PM
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Sniper
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How much did your '64 300 weigh? I always got a kick out of people's reactions when they got spanked by a big C body! No idea, I forget those details, it was the late 80's. I like the idea of a hotrod 300, looking at an SRT8 300. If I could easily swap in a stick I might get it.
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Re: Old school 509 purple shaft cam specs.
[Re: Sniper]
#3207120
01/22/24 10:50 AM
01/22/24 10:50 AM
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Joined: Jan 2003
Posts: 13,496 Marion, South Carolina [><]
an8sec70cuda
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I've always installed the 509/292 108 LSA cam 4 degrees advanced. 104° ICL. That cam works great in my opinion, even though it's an old cam that everyone likes to crap on. Some of the old stuff still has it's place. I had a 10:1 440 w/ stock 906 heads, just a 3 angle valve job, 509/292 cam, Performer rpm intake, 830 holley, headers, 3500 stall, 3.91 gear, in a 3700 lb cuda. Ran 11.80s at 112 mph on pump gas. Drove it everywhere. Switched to some home ported 915s and it ran 11.40s at 117 mph.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Old school 509 purple shaft cam specs.
[Re: RoadRunnerLuva]
#3207276
01/22/24 05:51 PM
01/22/24 05:51 PM
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Joined: Jan 2004
Posts: 8,660 fredericksburg,va
cudaman1969
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[quote=Sniper][quote=RoadRunnerLuva]Back in the late '80's...I had the "677" MP cam in my 440 powered '69 300 'vert. Stock block/heads, just a three angle valve job, and fresh valve train. 10.1 comp. and headers. We used a reconditioned CH4B intake, with a Holley 650. Engine ran out of steam at 4,500ish RPM.
I would say they both made a big difference, but that .509 cam was perfect, for that combo. If that same combo was in an A body, it would have been a high 11 second car...IMO. My Duster 383 with that cam carb combo went 11.65 118, st Hemi vert That's awesome! You're Duster went mid 11's with that combo! Was it a street car also? No street car but should have. .030 over TRW slugs, stock 915 heads, .550 triple springs adj rockers, Torker intake 3310 Holly with 2” spacer, Hooker fender wells with 12” extension, stock 68 street Hemi vert, 4.88 8-3/4, 10.5/ 29 M&H slick S/S springs moved into frame, Carter pump. All steel car one van seat, heater removed, hoop with side bars. Best driving race car I ever had, stopped on a dime, KH brakes up front. 1981. I put the engine in a race 68 Dart (big tires and 4000 vert) went 7.01 in eight, about a tenth and a half slower that his built 440. We ran mostly 1/8 mile
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Re: Old school 509 purple shaft cam specs.
[Re: Ramman]
#3208549
01/27/24 04:10 PM
01/27/24 04:10 PM
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Joined: Feb 2015
Posts: 2,123 CA
crackedback
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Since i don't see it listed and it wasn't widely discussed, at least in my cicle in the late 70's , what lobe seperation angle is this cam? All i find is a installed centerline of 108°. When I plug it into a camspec calculator, I have to enter a load separation angle of a 106° to get 38° overlap. Even though the box is 76°.[align:left][/align] Centerline and LSA are the same on those 508-509 cams, IIRC. If it says 108, then use 108 for both. Then choose where to move the centerline when installing. overlap comes up spot on in the wallace calculator 292 108 lsa
Last edited by crackedback; 01/27/24 04:15 PM.
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Re: Old school 509 purple shaft cam specs.
[Re: RoadRunnerLuva]
#3208928
01/29/24 12:37 AM
01/29/24 12:37 AM
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Joined: Aug 2003
Posts: 43,745 Bend,OR USA
Cab_Burge
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Last edited by Cab_Burge; 01/29/24 12:39 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Old school 509 purple shaft cam specs.
[Re: BSB67]
#3211103
02/06/24 01:31 PM
02/06/24 01:31 PM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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A 292 cam from the 70’s should have been a Racer Brown SSH-44. I ran one of those for a while…….. it was a good cam. My actual measurements had it as about 304@.006 and 244@.050.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Old school 509 purple shaft cam specs.
[Re: fast68plymouth]
#3211140
02/06/24 03:06 PM
02/06/24 03:06 PM
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deaks
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That .533 cam has slightly more duration than a .590 solid.
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
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Re: Old school 509 purple shaft cam specs.
[Re: A727Tflite]
#3211234
02/06/24 07:28 PM
02/06/24 07:28 PM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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The engine manual shows the Mopar part number for the SSH-44 as P3690812.
I don’t know how far back that number dates it.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Old school 509 purple shaft cam specs.
[Re: fast68plymouth]
#3211471
02/07/24 12:58 PM
02/07/24 12:58 PM
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Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
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The engine manual mentions that the new replacement for the street hemi cam came out in 1983. That’s cam number- P4286631. The 248, 260, 272 cams are all slightly higher part numbers, so my take on that is they were released around the same time.
The MP 484 and 509 cams are P412 numbers, so they should be from a bit earlier.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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