purple camshaft

-
Snake
I Just Read You Were Doing This In September.
Can You Tell Me If The Motor Was Running With No Problems Before The Cam Change???????
 
I once ran the 284/484 Direct Connection purple shaft cam in a relatively stock 360. It was neat on the street with a slight bump in the idle. It made fair power. Like the others have said, you may do better with some of the other modern grind cams, especially with the lower compression that most post `71 cars have.
 
All right than whats a good cam for a 360.With 340 x heads or 340 j heads stock comp,headers,duelplane intake,600 holley,3000 stall,355 gear in a light 69 dart.Keep in mind I do not want to get different rockers or pushrods lets keep the valve train simple.maker and part #ssss please.I admit I goof and so did the shop I got my comp cam.

With this combo,
I would go with the Edelbrock Air Gap,Holley 750,Comp XE274H,
355 gear,2200-2500 stall.
Your tires will be:burnout:
 
had a 484 cam in 9 to 1 360 back in the mid 80s...ran a best of 11.98 at 110 in a 69 dart.

as with any cam...it has to match the combination of parts...

wrong intake, converter, gears ...its a dog..
 
T67power yup that 318 was running with no ticks when i pulled it out.I drop that cam in to break it in than planed on installing it in a 360 this winter,now I dont think I want to play with it anymore.
 
Ok but do all cams now aday have to have adjustable valve train to wotk,I want a cam that will work with my stock pushrods and rockers I dont plan on breaking any speed records.
 
For the cams you should be running, you dont need adjustable rockers. You MAY need different pushrods, but I'd try without changing them first. If it's quiet, you're fine. If not, you may need longer ones. For what you have, I'd drop the stall speed 1200 rpm and run a cam like the XE262 or 60401 or 60402. You will need to step up the valve springs with any cam you buy.
 
For the cams you should be running, you dont need adjustable rockers. You MAY need different pushrods, but I'd try without changing them first. If it's quiet, you're fine. If not, you may need longer ones. For what you have, I'd drop the stall speed 1200 rpm and run a cam like the XE262 or 60401 or 60402. You will need to step up the valve springs with any cam you buy.

I agree with this,Ive run many comp xe cams with factory non adjustable rocker gear-and I like to run my stuff real close to zero lash (.015) preload for performance.To give you an example the last engine I built I ran a custon regrind from oregon cams that was indentical to an xe 274 but being a regrind it had a smaller base circle than normal,I used all stock valvetrain and still had .025 preload,ran quiet and hard.Also I agree there is nothing wrong with mopar cams performance as long as it matches your combo,todays combos are alot different so thats what causes most of the problems.I would not run one in your combo though since there are better cams for paticular setup.For the 360 I would reccomend the comp xe 274 or similar voodoo.Now if you really want a lumpy idle and good driveability this is a good cam,Ive run a few of these and they are actually pretty agressive grinds for what they are-very comparable to the comp xes,I currently have the 07402 (285/507) version in my 340.http://www.lunatipower.com/Product.aspx?id=1529&gid=277
 
The Paw Cam I Said To Use Was Just Installed In My New 318.
This Is A Great Cam For A Bone Stock 318
Mine Is Rebuilt But With Stock Cast Keith Black Pistons At 9 To 1
I Flowed A 920 318 Casting And This Is What I Wanted
I Like Lower Lift Cams And Bigger Duration Only Because Its Easy On Your Engine And Cheap.also Very Strong With Your Stock Valve Train.you Might Make A Little More Power With A More Modern Cam But You Need To Think About The Big Pitcher.
You Painted Your Self In A Corner And The Only Way Out Is To Spend More Money.
Its Only The Wrong Cam \\\ Sell It
Whats The Grind # From Comp Cams.
I Want To See The Specs.
One More Thing [[[[ How Old Is This Motor ]]]]]
 
You guys are not listening to Snake. For the 318 I'd use P4452759 Purple Shaft: 260/268 dur 430/450 lift, 1200/5200 rpm, assuming stock valve springs. I have no reverance for new cams or profiles. I personally would not buy a Comp Cam. He has small port 318 heads and stock manifolds. He wants a good cruising car he can get back on the road in short order?
 
i think it might be an old motor????????
JUST WAITING TO HERE BACK
AND IF IT WAS OLD AND IN NEED OF VALVE SPRINGS HE THEN COULD GO TO THE CAM I GAVE HIM.$167.00 SHIPPED
\\\\\THATS CEAPER THEN THE MOPAR CAM.\\\\\
WITH VALVE SPRINGS AND LIFTERS
BY THE WAY THE MOPAR CAM IS A GOOD CAM FOR YOUR CAR ALSO.
WE NEED MORE INFO
MY QUESTIONS ?????????????????????????????????
IS IT A OLD MOTOR
AND WHAT YEAR
WHAT DO YOU HAVE FOR A TRAINMISSION NOW
AND WHAT GEAR IS IN THE CAR.
WHAT DO YOU REALLY HAVE FOR PARTS????????
WERE TRYING TO MAKE YOUR 318 WORK FOR YOU
WAS THIS CAR RUNNING AND ON THE ROAD
66FS [[[[ NICE CUDA ]]]]
 
You guys are not listening to Snake. For the 318 I'd use P4452759 Purple Shaft: 260/268 dur 430/450 lift, 1200/5200 rpm, assuming stock valve springs. I have no reverance for new cams or profiles. I personally would not buy a Comp Cam. He has small port 318 heads and stock manifolds. He wants a good cruising car he can get back on the road in short order?

I agree, this would be a good cam for your 318 Snake. There`s still parts that need attention though like that single plane intake. Choosing the wrong cam in a low compression engine with a single plane intake will probably do little for the performance.
 
is the hole comp cam part # 20-232-4
[[[[[[[ go to summit racing on line and double check ]]]]]]]
I WANT TO BE ON THE SAME PAGE AS YOU !!!!!!!!
THE CAM HAS .480 LIFT AND IT'S ONLY 230 @ 50

YES\NO

(((((((( ANSWER THE FOLLOWING QUESTIONS? )))))))

1] DID YOU PUT NEW VALVE SPRINGS IN THE MOTOR????
2]DID YOU HAVE A MACHINE SHOP DO ANY WORK TO THIS MOTOR????
3]WHAT YEAR IS THIS MOTOR
4]IS THIS MOTOR RUNNING WITH THE COMP CAM INSTALLED

((((((( ANSWER THE FOLLINGING QUESTIONS? ))))))))
 
yep thats the part # of the cam T67power.New springs what comp said i needed,retainers.No machine work done engine was rebuild about 10 tho ago.Not sure of the year of the motor cant seam to find were I wrote that number down.The engine is running, starts, great idel is great with 17 pounds of vacume at 950 rpms,oil pressure is 60 cold on start up when hot at idel 45 and 15 at idel in gear.
 
LILCUDA
WHAT CARB YOU RUNNING??????
THE .474 HAS GREAT LOW SPEED POWER
ONE TIME I TRIED TO DO A BURN OUT WITH NO WATER AND IT PUSHED THE CAR DOWN THE ROAD WITH THE FRONT TIRES LOCKED.:-s
3000 STALL \\ 28 INCH SLICKS
THAT WAS AT 3720 POUNDS \\ 67 CORONET
AGAIN WHAT CARB WERE YOU RUNNING?

Holley 650 DP. Why?

P.S. Please lay off the CAPS LOCK. In case nobody told you, on the 'net using all caps is used to signify yelling.
 
TO LILCUDA
the .474 cam you have didnt really make you happy and i was wondering why you didnt like it that much.It was one of the best cams i ever used.It had a ton of power down low and was good with little to no convertor plus it worked with no gear.The .474 and up purple shafts are very large cams @ 50 and if you run the wrong power valve and or jets or pump shot it will die.Any cam with a big DUR. @ 50 is like that.Purple shafts get a bad name sometimes because of a out of tune carb.MORE DURATION IS HARDER TO TUNE BUT MAKES MORE POWER \\\ NOT AS SMOOTH AT A LOWER RPM.
 

Ok I think i got it.if i plan on that cam for my 360 witch i should use because I have it,than either measure for the right pushrod,or get andjustable rockers and pushrods say from a 273.Do I finly got it right guys.
 
snake
your all set with your motor
if the heads were not cut when you rebuild the motor other then a small cut to true them up { make flat for a good head gasket seal }you dont need adjustable rockers.
you said the cars running and you put the right valve springs for the cam on on the heads {so whats wrong with it.}
sounds like it runs good
drive it and work on your carb.
Is this car on the road????????
 
Snake, Sounds like a good plan to me. Soooo... what cam goes in the 318? I really hate to ask after all this, but I can't help myself.
 
T67power the car is not on the road yet just finished laite this fall restoring it.What is wrong is I have a valve train tick,and its driving me nuts,i have been told the only way to get rid of the slack is to install longer pushrods or get pushrods and adjustable rockers.66fs I am now just going to rebuild my 360 over the winter now,so no plans on a cam for the 318.This 318 install all started laite spring I always thought I would have her cruiseing but did not happen.so now she sits soooo I will just do up the 360.
 
This might help; maybe not.
I have an old thread in here, I'm going to did up in the AM.
1970 340 10.25, unknown cam and engine to me, even though the wife daily drove it for years- been on jackstands since 1987. It fired up; needs 30 degrees initial to stay running.
Pulled it down, degreed the cam. 230@.050; 274, or 280 lift. C/L 108.
780 carb, rich.even with holes drilled in primarys. Needed 2000 rpm just to keep it running. Vaccum 6 to 7.
Installed a 4.5 valve- a little better, still sucked.
Installed a 3000 converter, and tried it today. It will idle at 8-9 rpm.
with 9 vac at 20 degrees, 14 at 30 degrees, and wants that 30. Go figure.
But I used to run these cams on the street, back in the 70's, with good gas, and they rocked. But was with higher compression.
 
Thanks Snake, Good Luck, Lots of good advise here but, Remember it's your money and your car. We are not all alike.
 
SNAKE
is the tick one tick or your whole valve train at a led zepplin concert
{16 valves} all clapping
 
-
Back
Top Bottom