Can swap

[tdangle]

Can you swap cam with engine in truck. 70 with AC

[truckster]

You'd have to pull the radiator and the AC condenser, probably the core support, and maybe the grill.

[tdangle]

Originally Posted by truckster

You'd have to pull the radiator and the AC condenser, probably the core support, and maybe the grill.

That's what I thought. I was hoping someone had been able to do it with the AC condenser in. Per my measurements I didn't think it would work. Probably easier to pull the motor than pull the front end apart and redo the A/C

[geezer#99]

Originally Posted by tdangle

That's what I thought. I was hoping someone had been able to do it with the AC condenser in. Per my measurements I didn't think it would work. Probably easier to pull the motor than pull the front end apart and redo the A/C

Never easier!
I don’t think your condenser is solid mounted to the rest of the a/c stuff. Should move out of the way.
Why the cam change?
Do you have pics of your engine with a/c stuff.

[tdangle]

Originally Posted by geezer#99

Never easier!
I don’t think your condenser is solid mounted to the rest of the a/c stuff. Should move out of the way.
Why the cam change?
Do you have pics of your engine with a/c stuff.

I put in a SP350/357 GM crate motor earlier this year. Didn't realize a cam with a 108 LSA (215/223 duration) would not really idle very smooth. I've pretty much decided that I'll give up a bit of HP at the top end for more torque at the bottom and a smoother idle. Don't have any pictures, but it's all stock as far as the AC goes.

[Ziegelsteinfaust]

Originally Posted by tdangle

I put in a SP350/357 GM crate motor earlier this year. Didn't realize a cam with a 108 LSA (215/223 duration) would not really idle very smooth. I've pretty much decided that I'll give up a bit of HP at the top end for more torque at the bottom and a smoother idle. Don't have any pictures, but it's all stock as far as the AC goes.

108 lobe separation is more for low end torque, and I have a tendency to run circle track 106's myself. I am leaving duration out of this equation as longer duration vs shorter is good for rpm.

A 110 lobe separation is what most street cams are ground on for good idle, and low end power. I would get a model with this lobe seperation, and no more then 112. Unless you build a engine to swing to 7500 rpm.

Lobe seperation has a tendency to just move the power up in the higher end by about 500 rpm to maybe a 1000 on a wilder cam. This is why I prefer the 106's since I could get 20-30 more hp/tq from 2500 till 4500 roughly to mess around with. I also enjoy the rough idle in a performance build.