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Chevy rockers zddp requirements

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Blairsville Ed
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Posts: 146
Joined: Sat Apr 22, 2017 3:39 pm
Location: North Georgia

Chevy rockers zddp requirements

Post #1 by Blairsville Ed » Sun Feb 10, 2019 9:55 am

If you change to Chevy rockers, does that change the type of oil that is used?
ZDDP requirement
I’m currently using a delo 400 straight 30 oil, SJ, with .122 zinc and .11 phosphorus
Is the higher ZDDP needed ?

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Re: Chevy rockers zddp requirements

Post #2 by guhfluh » Mon Feb 11, 2019 10:57 am

Rockers don't change anything. ZDDP still needed for the cam and rockers.
1967 F-250 Crew Cab 2wd, 300 6cyl, T-170/RTS/TOD 4-speed overdrive
240 head, Offy C, EFI exhaust manifolds, Comp 268H, mandrel 2.5-3" exhaust, Edelbrock 500, Pertronix ignitor and coil, recurved dizzy. 200whp/300wtq

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