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t-up 07-20-2019 09:25 PM

Lifter bore scratches
 
4 Attachment(s)
Do these scratches look like something I should be concerned with? Discovered them after getting block home from machine shop. I brought it back to the shop they acted like it was not big deal, honed the bores, said it was fine. Solid Roller Lifters

SSDiv6 07-20-2019 10:24 PM

Re: Lifter bore scratches
 
Not only scratches, but also appears to be a lot of pitting too.
They may create excessive leakage around the lifter.
What type of lifter will you be running?

t-up 07-20-2019 10:25 PM

Re: Lifter bore scratches
 
New have not been installed. Crower Cutaway Severe-Duty Roller Lifters 66291H-16

Larry Hill 07-21-2019 09:23 AM

Re: Lifter bore scratches
 
For no surprises check lifter size with mike and bore size with bore gauge or telescoping gauge. If they used a ball brush hone, all that happened was the surface got scratch and bores got bigger.

Frank Castros 07-23-2019 06:03 PM

Re: Lifter bore scratches
 
We know the condition and the correction, but what is the cause?

Larry Hill 07-28-2019 01:49 PM

Re: Lifter bore scratches
 
Vertical lines = trash

George Wright 07-28-2019 02:17 PM

Re: Lifter bore scratches
 
www.lifterboretools.com has a kit for most popular V8 engines to sleeve lifer bores with bronze bushings. Not only restores your lifter bore to correct tolerance, but can restrict excessive oil flow. Kits have a reamer, install tool and bronze lifter bore bushings.


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