Help Push Rods

**ls1transam312** · 02-07-2010, 07:33 PM

I just bought a comp cam the duration at .050" lift is 224/230 (int./exh.) lift with 1.7 rockers is .581"/.588" (int./exh.) on 114 lsa. I need to know if I need different push rods. If someone could help me out and let me know it would be great.

**Mr. Luos** · 02-07-2010, 08:08 PM

Only way to know....is to measure.

You likely don't, but at minimum you will want hardened pushrods and upgraded valvesprings.

**ICRAZY6** · 02-09-2010, 07:53 AM

7.4's will do you fine. Like said earlier Chromoly pushrods and new valve springs would be wise to change also.

**ls1transam312** · 02-10-2010, 07:50 AM

I did buy new valve springs, and i was going to upgrade my push rods, I was just needing to know if I could buy standard length.

**ICRAZY6** · 02-10-2010, 08:02 AM

Standard will do you fine

**zmg00camaross** · 02-10-2010, 08:09 AM

I have seen the aftermarket cams base circle smaller the stock and it mite take a 7.425 instead of 7.4 but measure and know for a fact.

**jb3golf** · 02-11-2010, 02:55 PM

Have you made any changes to your Cylinder Heads?? Lifters??? If not the guys responses are correct: 7.4 or 7.425 hardened chromoly + springs. 7.4 may increase the valvetrain noise slightly, 7.425 should be right on with the different base circle of Comp Cams WITH XER lobes.........