CLASS RACER FORUM - View Single Post

Irace007 · 03-29-2017, 03:43 PM

Check all the ex manifold bolts #7/8 are usually the culprit.We've done some of the HV oil pumps and they do work.Have seen a ton of bad lifters/rockers.(Noise is most noticeable on cold starts.)
former GM tech...good luck

Marty

03-29-2017, 03:43 PM	#20
Irace007 Member Join Date: Apr 2011 Location: Forest Lk Minn. Posts: 102 Likes: 518 Liked 17 Times in 12 Posts	Re: 5.3 LS Top End Noise Check all the ex manifold bolts #7/8 are usually the culprit.We've done some of the HV oil pumps and they do work.Have seen a ton of bad lifters/rockers.(Noise is most noticeable on cold starts.) former GM tech...good luck Marty __________________ Marty Hanft