Originally Posted by Cab_Burge
I use to run straight non synthetic petroleum 5W20Wt Valvoline in my old pump gas Duster with no additives in that 518 C.I. solid roller cam pump gas motor, work good, lasted a long time up
On your deal with the solid flat lifters I would use Valvoline VR1 10x30 Wt. racing oil with no additional additives twocents


The 410 stroker I'm building will be broken in using 10W30 but its a Magnumn Hyd roller block so no need for ZDDP. Then I will run 5W20 and have two used oil analysis's done. I am running a Melling 72HV with the cover plate replaced with a direct pickup in 1/2 id. Stock pickup shown for reference, will be removed and port plugged.

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Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015


Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.

03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)