Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Most other lobes looked fair, #5's were wore down some, most all have some degree of wear on points. All in all was a rather expensive project but we went back with almost all new items while engine was out so at least now we know what we got and no bubba work done on it now.
Really concern about this oil one can get today. From research most lack ZDPP and Amsoil is looking to be my choice so not to have future issues. Need that Zinc to coat and protect better.Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
With the absence of lubricating chemical (ZDDP) in the present day
Oil from the oil companies available to consumer for typical oil changes,
It is highly recommended to add or use oil with the ZDDP available
In the oil you purchase. The Zinc Phosphate combination acts as a
Lubricating agent to reduce friction on the lobes and base of the lifters.
The EPA had mandated that these products (chemicals) be eliminated as it
Deteriorated the catalytic converter thereby increasing pollution.EPA
Sacrificed the metallic parts of the cam/lifters for the life of the converter.
The late model engines now have Roller Cams and Lifters and do not
Require the ZDDP,albeit I would recommend using the additive or buy
Oil with zinc phosphate available in the formulation.
To help identify the oil with ZDDP in the formulation, look for the
Round badge on the oil container that signifies API Service CI-4/SI
CI-4 Plus would also be indicated.
Be aware without the use of this type of additive or oil containing ZDDP during break in of cam/lifters along with normal operation of the engine would void the warranties you may have received from builder of the engine along with/cam/lifter manufactures.