shutudown4
Well-Known Member
I’m rebuilding my big block
What is a good oil for it?
What is a good oil for it?
Sorry I DID leave out some very pertinent informationLots of factors missing. Flat tappet or roller cam? Street or strip? Both? what's your climate like?
Vr1 10-30 will do you just fine unless your clearance are looser 20-50.Sorry I DID leave out some very pertinent information
mechanical cam. Stroker 440 now
526 cid, 10.8:1 compression, .565 lift
6 quart
Los Angeles area
What about oil with zinc? Conventional oil
A straight weight? 30 or 40?
Thanks for your quick response
Shutudown
Is your mechanical cam a roller or flat ?Sorry I DID leave out some very pertinent information
mechanical cam. Stroker 440 now
526 cid, 10.8:1 compression, .565 lift
6 quart
Los Angeles area
What about oil with zinc? Conventional oil
A straight weight? 30 or 40?
Thanks for your quick response
Shutudown
IMHO
The viscosity will be dependent on the bearing clearances you set in your engine.
Tight and a lower viscosity will work great, loose and your pressure at idle and hot will be close to nothing.
My 150,000 on its last rebuild 273, if I use 30w (per the FSM) it will trip the oil pressure switch, 40w no problem.
Stick with the multi viscosity. Also, I see no reason whatsoever for the 40w.Clearance set to factory specs
Los area climate
I’m thinking 30w or 40w conventional with zinc
Sounds good?
Shutudown
Valvoline 20w/50 racing oil in my engines since the late 70's.VR 1 20w50 in my 340.
Ha!Save the light weight oil for your old lady's sewing machine.
15w/40 or 20w/50 for summertime temps. anything above 60 degs.
I’m rebuilding my big block
What is a good oil for it?