sparky24

Should I plug my oil bypass and if I do what filter do I run? Im about to put the engine in and break in a flat tappet so if plugging the bypass is safe im thinking if i wipe a lobe having it plugged might save the crank???

gen 5 454 relocated filter with -12 AN lines and 3/4 npt on the oil cooler

I have the 30 lb bypass valve as well if I should just use it...

hammerdown500

My gen vi blocks had the bypasses plugged
​​​​​​​I run wix racing filter

Tinkerer

I have always bypassed mine. 454's and 509's
The 598 doesn't have that option.

sparky24

Plug bypass and run a filter with or without bypass built in?

edit: after thinking about it I think I will plug bypass and run wix51060r, no bypass filter 28 gpm, and make sure I have no 90 degree fittings as well

cabin fever

Mine is plugged and i run a wix racing filter.

vintage chromoly

iTrader: (3)

Remove the inner valvesprings for break in.
Also, a good idea to pull the valve covers, rotate the engine and check to make sure every pushrods is spinning. If the pushrods isn't spinning while the engine turns over, you will wipe that lobe.
I used a 30w break in oil from brad penn, but any flat tappet break in oil with the correct amount of ZDDP will work.

I've got no opinion on the oil bypass as I've never danced that dance.

sparky24

yeah i marked the pushrods so i can see if they stop spinning, inner springs are coming out as well

sparky24

Why did you use 30w? I have been trying to figure if i should use 30 weight break in oil or 10w40 or 15w50... I was about to order joe gibbs 15w50 break in oil.. but maybe 10w40 would be better getting that oil flowing with a plugged bypass, remote filter, cooler, etc