ZZ4 Vortec Engine Harmonic Balancer

Bobs85PU

Well-Known Member
When I bought my 85 Pickup, it had a ZZ4, roller cam, Vortec engine. As is still had the original EFI Balancer, I had to change it to one with timing marks.

I never even took into consideration what kind of balancer I installed...a "run of the mill" balancer from NAPA (made in China).

I am now aware of balancers for internal balanced vs externally balanced Vortec 350 engines...what balancer should I be using????

I don't race, so I only need a proper balancer...not a couple hundred dollar model. All this truck is for, is hauling stuff in its bed; and pulling a car hauler trailer.
 
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