What engine oil to put in my SBF

[Caprimaniac]

Hello everyone.

Searched thorugh the forum for find specific threads on this, but nothing came up... Can YOU find it? (Oh no it comes back to me... I used one of the threads in the Weber forum to chat about my oiling problems? Or do I remember wrong?)

Anyway; here's what I'm gonna let you people help me decide:

World Products suggest you use a rather thick engine oil for their ManOwar blocks, which I'm running. 20W-50 is on their list.

As I used 5W-50 motorsport last season and experience quite low oil pressure hot & idling and 0 oil pressure in 360 deg turns, I was going to change to 20-50.

Thing is: You only find 20W-50 mineral oil? Have not been able to find any synthetic or blend.
Mind you; I'm in Norway- not the US or central Europe...

We have Shell, Mobil, Agip, Castrol, Valvoline, Comma and a few other brands here.

So, should I go with a 20W-50 mineral or what?

I have found some reference to, I think it was Mobil 25W-50 Motorsport oil... Anyone familiar with this?

Racing season is here now, and I'm installing an accusump, a gear oil pump/cooler in addition to new roll cage, new seats, new harness and a new brake- box with proportioning mechanism and front/ rear mastercylinders.

I'm excited!

- And still am. Now I also wonder; all these suggestions to purchase a road-race oil pan (& pick-up): will any of the suggested pans clear a 347 H-rod stroker with 4- bolt mains on all 5 (use a World aluminium block)?-

Happy springtime, everyone.

RuneS