What Cam for Big block

[OutlawJD]

looking for ideas for cam ... 413 +.060 using 516 heads that have a street porting and 2.140/1.810 valves. 10-1 flat tops with 2-4 intake. 4050. lbs and a 3:56 gear.
Thanks
Jim D.

[amxauto-x]

What tranny and what is the main use of whatever the car is? And what percentage is that use?

[OutlawJD]

Tom, it is a built 727 with a 2800 stall. Truck will be used to cruise and hopfully smoke a few fords and chevys.
Jim D.

[amxauto-x]

Are you planning on doing any towing with it? If so, what? And how much does it weigh?
There was a recomendation for a good towing cam, but I'd have to search for it. You might try that.

I found it. Just an idea of course.

MP part # P4452783 - specs - 268/284 ADV - 228/241 @ .050 - 46 overlap - 115CL - .450/.458 lift - Range Idle to 5800.

Seems if you want a racy truck this cam isn't big enough, but in case someone else mentions it, then you have that info.

[ehostler]

Call Racer Brown. They can get you set up with a cam that is perfect for your combination and is superior to the outdated MOPAR grinds.

[OutlawJD]

Guys, This is a 1949 Dodge 1/2 ton . No towing, just something that might sound on the badd side, attend Cruise In's and be able to get it on with some of the locals who wouldn't know what to do with real HP.

Thanks for the replies
Jim D.

[hedgehog]

I don't know how lumpy you want it or if you have added a brake booster or not but somewhere in the 230 degrees @.050" with no wider than a 108 lobe separation and give it 4 degrees when you install it.

[ehostler]

Get the best of both worlds... Call Racer brown and tell him what you have and what kind of power you want and that you want it to have a lopy idle.

That or you can try to find a cheap Erson cam and it should give you what you are wanting.

[holshotbb]

The key to the wieght and poor heads is a dual pattern cam as listed.While it may not be real bad sounding it will work good overall with reasonable power and torque.Remember a little too small of a cam will never hurt as much as too big.

[dave571]

I have to agree on endorsing the racer brown cam.

Simple results, is the reason.

I was running the cam in my profile.(272/ 490) Found it didn't breath very well.

I installed an racerbrown cam, after ordering one with all of my specs.

The cam I got had milder specs than the one I took out.(I can post them later)

I have more torque and better breathing. Woke up the engine so it needs more fuel ect. 2 tenths off my et as of now(with the fuel problems yet to work out)

Like I said, with milder specs. Less lift, less total duration. The profiles are better, and the ramps are steeper.

On a different subject, I don't think you have enough gear, for what you've done to the heads, and planning on two carbs.

[OutlawJD]

I ran a 4:10 gear with the 413 in the past and it seemed to be ok for a round town , but too much for the interstates. poor heads was mentioned by holshotbb . Have I screwed up buying those heads ?? the engine is a 1961 Golden Lion. Would the stock heads be better to have reworked ?? Any is appreciated. Ed I have noticed that you have a lot og super knowledge with MOPAR products and Thanks for your input.. I am just a 56 yr. old man trying to regain his youth.
Jim D.

[dave571]

I don't think you've screwwed up by buying them. They have big valves, and big valves need air flow to work, as does twin carbs.

The engine should make good power when revving. Depending on tire size, and stall speed, it may turn out to be a dog, oitherwise. ( a dog off the line, lots of spin once you wind her up)

[OutlawJD]

Dave, The intake is an after-market and I have 2 AFB (600) cfm carbs. the tires are 265/60/15. Not sure of the Dia. Do you think the cyl.'s need to have the top side notched to clear the bigger valves ??

Thanks
Jim D.

[dave571]

You should probably check the valve clearance at assembly.

There are a lot of variables here. Cam, deck clearance, ect..

It probably won't need it, but it should be checked for sure.

[OutlawJD]

Dave, The heads and block have had .010 removed to clean them up. This is not a racer , I just want it to be able to hold its own at the light. A lot of people think if it has a 350 with TPI they are fast. I want to faster Some have never owned a fast car. Probably would get killed or wrap it around a utility pole.

Thanks
Jim D.

[6 packin]

I like that 528/284 solid purple shaft thats in my car. Has a little sound, not much more than stock, but makes tremndous power, cabable of running in low 11 sec race preped car, according to Mopar chassis manual. It pulls through 6600 rpms?? That should do it, think its starts at 2400 rpms, so right i there were you want it. But a set of adjustable rockers are needed!

[jleilich]

listen to ehostler call Racer Brown , ask him what you just asked us and he will tell you exaclty what you need


Racer Brown
410-866-7660
call after 2:30 pm

[jleilich]

eastern time.... sorry

[OutlawJD]

Thanks to all who shared their valued informationand thoughts. I will call Racer Brown, he seems to be the choice for MOPAR's.

Jim D.

[23T]

Originally posted by OutlawJD
Dave, . This is not a racer , I just want it to be able to hold its own at the light. A lot of people think if it has a 350 with TPI they are fast. I want to faster Some have never owned a fast car. Probably would get killed or wrap it around a utility pole.

Thanks
Jim D.

AHA Jim you warm the hearts of all us old farts, Dont want to be the fastest in town, just faster than the guy in the lane beside me

[gelvik]

Ported 516 heads will work fine as long as they were done right.
If you have them already, they will be fine.

[OutlawJD]

I know the man who did the heads and he has done a lot of heads the past 40 years. he said removed .010 from the surface,
blended the bowls, smoothed the floor,said something about not doing too much in the floor area of RB head, removed some corner for a smoother or better directed flow and did some de-shrouding around the chamber. They look super. Bronze guide liners, teflon seals and 2.140/1.810 SS valves. I think he was going to bring the piston up out of the block some ?? Quench ?? .040 ?? Some of this puts a cloud over my brain. Maybe with the Racer Brown I will end up with a neat truck that hauls a$$.
Thanks
Jim D.