saltwatercowboy6355

iTrader: (1)

Thanks for the imput good stuff I figured the stock stall was around 2500-2600 i was either going to have mine rebuilt or maybe start looking into the 3000 stall. That extra weight on the stock stall is alot that thing is HEAVY so maybe a lighter one could be the way to go

As for the pistions they have the reliefs and i was shooting for around 10:1 since i do tow a heavy dang boat when the ocean allows.

For lifters i was going with the comp replacement ones not the R series since ive heard they are only more trouble.

It seems everyone says to dis the HS rockers Ik they are pricey but they sure are pretty the main reason is i figured the increased ratio to 1.8 would put me right at .600 of lift which really isnt that much and i already have the right springs for it. Is there really no point in having more lift for my setup? I figured it could only help

zero2sixT

iTrader: (4)

Man, I am by no means an expert but, I figure a 220 cam in a 6.0 is on the small side. A 220 cam in a 420 is a peanut. I know you have a 4x4. But, I'd say you were slow out the hole b/c of the tall first gear of the 80e and that massive stock converter.

I understand he's got a dang landbarge, but you did see he's going with a 370 right? I just don't see how a TR224 is over camming a 370, even in a 2500hd.

I don't disagree that the 212/218 will meet his power goals. But, I don't really see the need for the bigger bores to get there neither. I see radix 112's FS for $3k all the time. After a little bsing, prob cheaper. The 112 on a stock 6.0 will put down better than 350 @ the wheels with the big pulley. I'd say building this 370 would put you right around the same money. And you wouldnt have to sweat losing any driveability. Just a small tangent, food for thought, and MHO.

Im still promoting the z06 243's over p&p'd 317s. Those 243s have better valves and flow w/o any mods. Then sell the 317s for $150 and youre only out $250 for the used set of z06 heads.

Saying all this, while trying to maintain a friendly discussion...

Sizzle Chest

iTrader: (5)

Us 2500HD hot rodders face a real connundrum when it comes to cams and stalls. Anything bigger than the cam/stall you first suggested will really hurt you when it comes to towing. But a 212/218 with a 2800 stall is on the mild side in terms of the performance gains.

Ive had two setups in my lq4 that I'll share with you. My truck is 4800 pounds so keep in mind that I'm lighter than you are. First was a 220/224 with PI 3000 stall. This was a great street set up and was a very well matched combo. The stall felt like stock except it would flash to 3000 when you punched it. Cam had a slight chop. I could still get away with towing on this set up and it ran 12s with a 150 shot.

Decided I wanted faster times and went with a 227/235/615/620 with a Yank 3600. That got me into the 11s with spray but there is no way I would even attempt to tow anything now. In fact I went out and bought a used diesel as my truck is all play now and worthless as a work truck. But I knew that was going to happen going into it.

So be careful and really think about about what you want out of your truck. I think your initial cam and stall choice is about what I would do if I was in your shoes. I might go a hair bigger but thats it.

saltwatercowboy6355

iTrader: (1)

I know what u mean its one thing to picka cam for a truck and a whole nother to pick one for an HD. I always have to keep in mind this is still my work truck not just a weekend warrior.

It is great to see a fellow HD run 12s even if ur 1000lbs lighter lol but the set up u mentioned sounds very solid ill definantly be going witha 2800 to 3000 stall now.

1slow01Z71

iTrader: (36)

Having more lift definitely wont hurt, but I suppose what I was getting at, is for the money there are other mods that will net you more bang for the buck.
Yes a 220 cam is small in a 420 but I use my truck for all kidns of things not just straight line performance. You are correct a lot of the slowness was due to the 80e and being 4wd, but the original poster is too plus being about 600#s heavier AND being 50 cubes down from me. I also had badass heads on my motor too(WCCH Edelbrock 245s) so I believe he should stay with the 212/218 for his needs especially since hes towing. The 245s also hurt my down low performance a little due to the large intake runners making for slow port velocity but I also had the cubes to breathe through the heads too.

The 243s and 317s have the same ports, the only difference is the sodium filled exhaust valve and smaller combustion chamber on the 243s. If he went with the 243s he'd also be way too high on his CR to pull any decent load in his heavy truck with warm weather.

I agree a radix would be the better way to go but he can always add that on top of the stout motor he is building now.

saltwatercowboy6355

iTrader: (1)

So xmas came early for me I just got the block and stuff back from the machine shop big props for Brevard Cylinder Head they took care of me big time. cant wait to get buildin on this beast!!

After alot of thought and reading ur comments i think ive decided to go along with the vinci trucker cam with 1.8 rockers I know the 212/118 would be a good set up but the vinci is 216/224 which isnt to much bigger and would be around .58x lift on both sides which is perfect and dont have to worry to much about piston to valve I figure with this cam and a 2800 stall i should not lose any torque im sure only to gain some and ill have more ponnies up top than with the 212/218

So hopefully in about a month ill be posting some sweet results!