15W-40 Oil For Hydraulic Roller SBC?

  • Thread starter sandiego74
  • Start date
  • This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others.

G72Zed

Veteran Member
Sep 8, 2015
6,686
Canada
I’m using a K&N filter now, but I saw the Wix was highly recommended when I started researching this topic. Thank you for the heads up on which I should use.
WIX are one of the most popular and attractively priced racing filters, not to mention readily available in most locations.

Again, I would discuss with the engine builder what filter he prefers and would like you to use.

There's two camps and trains of though on filters, some like the higher micron/gpm rating, some like the lower micron for fine filtration, it's a fine balance, depends how the engine is built and being used and in what environment.

If the builder is using large clearances and incorporated a HV oil pump and recommends 20W50 oil, I'd use a racing type oil filter like the WIX 51061R, 28gpm and 60 micron.

Can you use a normal oil filter, yes, but your engine specs/setup you may be on the relief spring and bypass mode most times, and you are not filtering squat like that.
 

RTSE

Veteran Member
Apr 11, 2020
166
I have 350 4bolt with Dart alloy heads, solid lifter cam, Victor junior 750DP Holley makes 400hp at 6k rpm (dynoed not guessed) had this motor for 20years always ran it on 20-50 my mechanic recommended an Australian oil 20-60 with high zinc, so far been great
 

Attachments

  • IMG_7278.jpeg
    IMG_7278.jpeg
    276.7 KB · Views: 10
This site may earn a commission from merchant affiliate links like Ebay, Amazon, and others.

rocket dawg

Veteran Member
May 5, 2015
768
Grand Rapids Mi
Valvoline VR-1 full synthetic for me. 4 quarts of 10w30 and 2 quarts of 20w50 , netting 13w37. Wix filter, 406 sbc and my rear main has leak for years also. Just recently I found out they made a full synthetic version of the VR-1. Before that, the standard VR-1. Now, that being said, I think Valvoline reduced the amount of zinc in their oils.
 

Z-28 Roadracer

New Member
Aug 23, 2014
23
Winneconne, WI
There are a lot of different applications & requirements being discussed by contributors to this discussion. As long as the viscosity and chemical requirements are being met (and confirmed with your builder), you're good to go. As for the racing filters and how much pressure is enough, I have a couple of questions. Regarding high pressure, is the bypass valve in your filter adapter plugged? As for the higher (bigger particle) micron rating of the race filters, has anyone considered running a bypass filter? It would be a bandaid but would help reduce particulates in the system.

Without getting into a brand debate, I learned the value of synthetics after trying to start my Cummins powered Dodge after it was parked on a lake in -20° temps for a couple of days at a snowmobile race I was in. Now, all my stuff (and I have a high cylinder count) has synthetic lubes.
 

biker

Veteran Member
Dec 7, 2014
8,165
Canada
There are a lot of different applications & requirements being discussed by contributors to this discussion. As long as the viscosity and chemical requirements are being met (and confirmed with your builder), you're good to go. As for the racing filters and how much pressure is enough, I have a couple of questions. Regarding high pressure, is the bypass valve in your filter adapter plugged? As for the higher (bigger particle) micron rating of the race filters, has anyone considered running a bypass filter? It would be a bandaid but would help reduce particulates in the system.

Without getting into a brand debate, I learned the value of synthetics after trying to start my Cummins powered Dodge after it was parked on a lake in -20° temps for a couple of days at a snowmobile race I was in. Now, all my stuff (and I have a high cylinder count) has synthetic lubes.
Yep. Extreme cold is where the synthetics shine. Less need for block heaters. Still, we epoxied a pan heater on my son's duramax for the super cold days. It's no help out on a lake though.
Thanks for getting me thinking about sled stuff again..
 

need-for-speed

Veteran Member
Feb 7, 2003
1,683
Conroe, TX
I had a friend who ran Valvoline 15w40 in his 355, solid lifter engine for a number of years. When i had an opportunity to ask a Valvoline rep about it, he quickly replied don't use a diesel oil in a gas engine. There were a number of reasons why, which I can only remember a couple... it's not formulated for gas and it's not designed for higher rpm.
I read that diesel oils have more detergent than is necessary for a gasoline engine. Makes sense since diesel is a dirty fuel.
 
Top