Oil bypass, do you block it?
 

On a SBC the oil bypass is in the oil filter adapter, I'm not sure on other motors. Do you block it to avoid oil bypassing the filter? I've read info arguing both ways.

Re: Oil bypass, do you block it?
 

I block mine. You must run an oil filter capable of handling the increased flow through it. I use the K&N HP3002.
Dan

Re: Oil bypass, do you block it?
 

I have blocked a couple for customers that wanted them that way but like Dan said you absolutely must run a good racing type filter and be willing to warm the engine up some before getting your foot in it.

I have also seen two nice engines ruined because the owners used a cheap filter that came apart and blocked the oil passage going into the block :(

Re: Oil bypass, do you block it?
 

I've blocked them in the past and used Wix filters, both standard and racing. I've never had any problems but it does make sense that the oil can't pass through the filter fast enough especially on launch. Cold oil and high viscosity would also slow the flow through the filter with no bypass.

Re: Oil bypass, do you block it?
 

I have block all of mine and use 1061 NAPA gold as it has a 19 micron rating VS the filters which have a 51 Micron rating.

No issues to date.

Re: Oil bypass, do you block it?
 

Dirty oil is better than no oil.......

Re: Oil bypass, do you block it?
 

A good case here. You have to know what your doing when building an engine and what parts to use,

I have always blocked the bypass and no problems to date, If you know what your doing it works.

Re: Oil bypass, do you block it?
 

Been blocking mine for over thirty years, never an issue. Clean oil.
1061 NAPA filters. Made by WIX.

Re: Oil bypass, do you block it?
 

x100000000000000000000000000000000000000000

Re: Oil bypass, do you block it?
 

Interesting how now word is that Wix has been manufacturing out of the country and quality has dropped. Anyone have any info on Wix quality?