Recent content by 496 polara

I ran the XE274 hydraulic cam in an 8.5-1 440 (sitting on the floor waiting for me to decide what to do with it)and it did fine. Withe the smaller of the cams you mentioned 8.95-1 is fine and the solid lifter cam should make more power. I am sure it would run fine with the 915 heads but I bet it...

If you have the e street use them Torker or TM7 (two different intakes iirc but either beats a stock cast iron to death) HP manifolds unfortunately. Maybe 2" headers if you run 4.10's if you run 3.55's ^ If you run 4.10's ^ Those are hyd flat tappet,no?

It may last for a while if you don't run drag radials.It may not also. Peg leg or sure grip?

No other dyno info,just a blank sheet otherwise? Seems odd to me,more like a simulation with it showing values to 10000rpm. My hyd roller lifters definitely generate some noise as well.

Should be a fun torque monster for a street car.

Run the snot out of it and if it fails during the warranty period then you address it.

A couple of burnouts may smooth them up. Rotate, then repeat. :steering:

And got $300 for his 68 Rambler trade in to boot!

Flat spotted bad I would wager. Put max sidewall pressure in them and drive them long enough to get them hot and see if the ride improves. That being said you can use them around town but I sure wouldn't trust them at a higher speed. Until you are going to use it more leave them on. Long term...

Johnson used to be the go to lifter. Have them checked and corrected for taper if need be no matter whose they are.

I ran those on my 73 Charger for years. No issues. Just have to ask yourself do you want a painted header or a coated header?

The only way to be confident they won't hit is to measure. That being said I would be surprised if there was an issue on such a small cam. Lots here smarter than me,hopefully they will chime in. @PRHeads spec'd my cam and has forgotten more than I will ever know on camshafts.

While oil plays a role I think there are many available out there that remove that from being the problem. I believe having the lifters checked before running them for correct taper is the single biggest issue.Throw in too much spring pressure on break in and you have a recipe for failure.