Novapat67

I am getting everything together for my ls swap. I have a 2006 L33 that I bought through carpart.com that I was told had about 60,000 miles on it. This was about 2 years ago so if something is wrong, I don't have much recourse.

I have no reason to think the engine is not healthy or that it has different mileage. Before swapping the cam and some other stuff, should I even do a compression or leakdown test? I had read that the engine needs to be warm to get accurate readings. I won't be able to start it for a while. What does everyone think?

Che70velle

iTrader: (6)

Personally I’d pull the valve covers and take a look. You’ll see right away if it’s clean or not, meaning low mileage. If it’s clean, I’d not worry about the tests right now. Prolly been sitting so long that the tests won’t be accurate anyway.

s30.hybrid

iTrader: (3)

I agree. Since it’s a swap I’m assuming you’re going to swap oil pans..? Wouldn’t hurt to check the rods for any loose clearances if you have the pan off. Just try to move them by hand.