Long story short... I bought a great looking v90 for a great price, only to find out it was a scam to sell a car with a known blown head gasket. I did my homework, and now the guy wants to make well. Here is my question to the board.

I've had the engine pulled apart, and the head is trash, is warped .028. Far above what my machinist is willing to try and heat and reshape and/or shave.

Now, the guy that sold me the car is willing to buy me a new engine with 90K on it. The car now has 150K.

My questions are this:

1. What would be safer bet; Installing a newly rmanufactured and warrantied (12 months/unlimited miles) head on the existing block or; Installing a 90K mile engine with a 90 day warranty.

The reason I ask, with the head being warped and the gasket being blown, what damage could there be to the existing engine block in the car?

Is there a way to test the block, while in the car? And more importantly, what kind of a guarantee would a regular mechanic give on an install?

thanks for reading!

Lucas