Generation IV Internal Engine - oil weight question
04-28-2012, 10:22 PM
Best oil for LS3 418 Stroker, big cam, high compression?? 30W, 40W or 5OW. I live in Florida, if that makes a difference as far as temps.
THANKS IN ADVANCE
04-28-2012, 11:59 PM
Your oil choice is going to be affected by your bearing clearances and oil system. What are your figures? Stock clearances would stay with 10/30 or 10/40WT oil.
04-29-2012, 12:25 AM
agree clearances are the main factor do you have a build sheet
of what the lower end clearances are
04-29-2012, 11:47 AM
The motor was completed several months ago and the engine builders-Arvil &Chris Fowler of XTREME HP in Texas are out of business. They never sent the build sheet.
04-29-2012, 11:53 AM
The motor was completed several months ago and the engine builders-Arvil &Chris Fowler of XTREME HP in Texas are out of business. They never sent the build sheet. What I was trying to say before server failed, they recommended 10W30 Mobil 1 syn , but my sources tell me syn not good for break in motor. I don't know if they used break in oil then changed to Mobil 1. I going to put Brad Penn Racing oil in ASAP. But I can't get in touch with them to confirm.(another story)
04-29-2012, 11:43 PM
i would think i would follow what the engine builders recommend i mean gm breaks all there engines in with mobil 1 they are factory filled with it but when it comes down to it its your choice i have used pennzoil forever and never had a problem with it
04-30-2012, 12:10 AM
If you have stock clearances, stick with 5w30 that they are supposed to Be ran on.
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