Is Motor Ready For WOT?
TECH Enthusiast
Joined: Mar 2004
Posts: 647
Likes: 0
From: Australia
You broke it in 580 miles ago. Shoulda caned it back then - anything you do now is kinda irrelevant. Rings would have sealed according to the heat and use you gave it back then.
Just cane it. But if you have been gentle to it, then at WOT ring seal might not be as good as it could be
Just cane it. But if you have been gentle to it, then at WOT ring seal might not be as good as it could be
Teching In
Joined: Sep 2009
Posts: 6
Likes: 0
From: Honolulu, HI
I know GM has for many years used propane and i think regular oil for break in, then they are crated to final destination. I have always built the traditional sbc on the tight side and used 20w50 valvoline to for break in through first tank of gas and never a problem. It's not how hard you beat on it and when, it's how well the engine was built!!
I know GM has for many years used propane and i think regular oil for break in, then they are crated to final destination. I have always built the traditional sbc on the tight side and used 20w50 valvoline to for break in through first tank of gas and never a problem. It's not how hard you beat on it and when, it's how well the engine was built!!
Teching In
Joined: Feb 2010
Posts: 28
Likes: 0
Breaking a motor in on synthetic was a myth, it is not harmful at all. I've done it on factory engines and hand built "performance" engines as you call them. And I beg you to tell me the difference between a LS7 and a hand built performance engine. There isn't, and there is not enough difference in the rings to make it matter.
