Help With Pushrods

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Aug 3, 2001 | 10:31 AM

skud

Thread Starter

Cross-Country

Joined: Aug 2000

Posts: 87

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Help With Pushrods

Ok, I got my shims, and they did help somewhat, but the valves are opening just a little still... So, I am going to get a set of shorter pushrods. Now, how much shorter can I get?? I Shimmed the rocker arms about 0.030" and still it wasn't enough. So, I was thinking about getting 0.040" shorter rods, and then if I needed to, I could still shim them.. Does this sound good??

Thanks
Riley

Aug 3, 2001 | 01:28 PM

beartracks

Lead Driver

Joined: Nov 2000

Posts: 6,636

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From: Albuquerque

Help With Pushrods

Check with Ford or Crane cams on push rod length available. With that much change you need to check your rocker arm geometry. Make sure they don't hit the spring or roll off the valve stem. You want to wind up with about .030 (I think) preload on the lifters.

1977 Ford F-100
400m/c6/4:11/Gear Vender O.D.
Crane hydralic roller, forged, ported polished,Deamon,Edlebrock, yada, yada, yada
280,000 miles
Stock on the outside
modified/rebuilt everything