Guy's I Am Putting Together A Low Deck 451 For Mostly Street Car, And Am Getting Ready To Decide What Camshaft That I Want. I Am Wanting Good Power But Not Something Too Terribly Rough Of An Idle. Every Body Says That With A Stroker You Can Get Away With Much More Duration, But Would That Count For A 451? Isn't It Just Basically A 440?

WAY too many variables............weight, heads,gears comp. etc. but when in doubt a good ol .480-.500 lift cam w/230-235 dur. @ .050 has always got the job done for me on mild combos.

I agree with Thumper, for the best answer we need more information. Do you have any goals for the car? HP or ET wise? What is the rest of the combination?

Well basically you have a 440 with a bit shorter intake runners. It isn't a stroker except compared to a 383/400. So anything that would work for a 440 will work for your 451.

I'd say the Lunati Voodoo cam in the middle of the series would be about right. Something like the Comp XE268.

R.

there are some variables here but the big one is; do you want to drive the car a bunch? i've got a 440 in my 65 coronet, good heads, 6-pak, torqueflite, 3.23 rear, 9.3:1 compression. it has an engle k65 solid; 238@.050-.510 lift. it's all the cam i want. it's got a little rumble, would probably have a little more "pop" with 10 or 10.5 compression. doesn't need much converter. low maintenance, easy break-in, and makes enough power for my old butt.

Do you care if it is solid or hydraulic ? Or flat tappet or roller ? Ron

The Mopar .528 solid works really well in that size of engine. It has a fairly smooth idle but it will pull hard up past 6000 rpm.

I've done a fair amount of camshaft testing over the years. The articles are on my website in the tech article section.

www.arengineering.com is the address. I also covered the topic in my big block book.

It's not a 440 unless you're using RB rods.

And most modern 451s do.....
R.

if i build a 451 it will be short rods.
it has been said the longer rods seem laiser to the 60ft
than the shorter ones...
i am going to find out.

The next 451 I build will have a 383 rod in it. Thats still a 1.75 L/R (440 rod has 1.80 L/R) That way, you dont have the wrist pin penetrating the oil ring land.

I use a 214/224 on a 114 for my street car. Really happy with it.

Its similar to a 300HP/327 chevy grind from the 60's. I got it from Crane. Dont know if you can get it anymore though.

I just did my 451 with the 383/400 rod. I run the Racer Brown SSH/44

with 244* @.050. I've used this cam before in a 440 and it runs real

good on a street car with a 3500ish converter and a set of 3.55'-

4.10s in the back. The pistons are lighter than the ones made

for the stock stroke.

Old school mopar 557 solid cam. Perfect for a street driven 451.

Yes.
Why?