I am going to be putting a cam in TR 220 .551 lift. I know that I need 7.400 length pushrods, but I am wondering if there is any type of pushrod that any of you guys recomend. I have found some trick flows that run about. And two diffrent Comps.

one is:
CCA-7955-16
Pushrods, Hi-Tech, Steel, 5/16 in. Diameter, 7.400 in. Length, Ball Ends, Hardened,

The other is:
CCA-7638-16
Pushrods, Magnum, Chromemoly, 5/16 in. Diameter, 7.400 in. Length, Ball Ends, Hardened

Trick Flows are:
TFS-21407400
Pushrods, Chromemoly, 5/16 in. Diameter, 7.400 in. Length, Ball Ends, Hardened

What do you guys think is the best choice should I stay away from the Chromemoly? Thanks

 

Almost any 7.4 rod will work. But Id recommend the TR rods. They are just a tad bit longer to make up for a smaller base circle cam. But they are advertised as 7.4" rods.

 

would they be good for a .563 lift?

 

Oh yea. Just gotta make sure your spring can take the lift.

 

comp 918's .600 good right?

 

manley 7.400

 

manley 7.4's here to.

 

We stock Manley 7.400 pushrods! Call or IM me if you need a set & I'll take good care of ya

 

Not trying to still thread, but i wll be installing a 212/218/ .522-.529 cam soon. Will i need pushrods?

 

You won't NEED them with that setup, it's just a recommendation for the LSx motors in general. The pushrods tend to bend/break at high RPM's ( very high like 7000+ ) so most go the chromoly/hardend route. There are also those that shave their heads for more power and require different lengths too.
BTW, most of those who have broken/bent them were M6 tranny folks who missed a shift under race conditions. Most of us truck drivers never see those kinds of RPM's.