VORTEC 4.8 V8

alleycat3

Original poster
Member
Aug 23, 2023
19
Houston Texas t
Anyone know the size of the harmonic balance bolt on a Chevrolet Silverado 4.8 because I'm removing and replacing the valve stem seals?
 

Mike534x

Member
Apr 9, 2012
934
Got this posted on the wrong forum section bud.

But to answer your question, it should be the same as the 5.3 (16 MM x 2.0)
 
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Mooseman

Moderator
Dec 4, 2011
25,351
Ottawa, ON
I already moved it.
 
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Mooseman

Moderator
Dec 4, 2011
25,351
Ottawa, ON
Haven't heard anything about them. Used them on the Saab when I did the DOD delete and reconned the heads. No problems here.
 
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