mike tkach

probibally good for nascar or classes that don,t allow roller lifters but i bet not to many in muscle cars.

getrdunn

Ran a 242/248 - 644/648 111 lsa 496's. Custom hyd roller grinds from comp with a pretty aggressive lobe design. Ended up with some valvetrain issues we diagnosed on the dyno. Without the dyno we wouldn't have caught it. Combination between recommended springs and roller lifters. I didn't spend much time chasing the problem before swapping to solid lifters and springs resulting in a tighter valve lash. Installed cams 4 deg advanced. Peak power 5,800.

Black Baja

Super Stock those are the fast muscle cars. And circle track stuff.

Panther

You ran the solids on hydraulic lobes? How much lash?

Aside from the issues you found on the dyno, was there much power difference?

Panther

I thought it was cool hearing the completely different sound of the two different cams I used in these engines over the years. Both setups had the same docking mannerism's. Neither surge (I don't like surge, I tune it out), stall, fart, hickup etc. but the new one is a few mph faster than the old.

1st was with the old solid roller. 92.3 mph GPS.
https://youtu.be/nV0Kh-lk4Bw

2nd was with the hydralic roller, 95.4 mph GPS.
https://youtu.be/EeOna_qS7Fg

MILD THUNDER

What were the specs on the two cams ?

Black Baja

Sounds like different firing order.

Panther

I believe I posted them earlier in this thread or on another thread that you commented on. However, they have similar duration specs when you account for solid vs. hydraulic with the biggest differences being 2* more lobe separation on the new cam and a bit more lift and LS firing order which was all part of the plan when putting the package together. Could have run a bigger solid cam and I'm sure it would have been the same, perhaps even more but I got sick and tired of lashing valves every season because my engines are on 32 1/2" centers.

One of the biggest differences I felt in the boat was being able to feel that there was much more torque from 3500 on up. The old cams pulled these props to 5700 and the new cams are pulling to 5900 with the same props.

Panther

good ear!

MILD THUNDER

I was curious about the advertised duration, .050 duration, and lift.

If i remember the solid roller you had was pretty mild. It sounds like you certainly making more power now obviosuly. 3mph gain in a 36 apache from a cam swap if similar cams, is huge. Did you dyno them ?