Hey all,

I'm in the process of a build at the moment. Have aquired a Brand New Bare block from Mitsubishi, and doing a build on it.

I was speaking with my builder/tuner and he mentioned that using brand new block might have an issue of the block deck sinking in the middle, after some time. I unfortunately can't recall what he said exactly. (Something along those lines)

But my question was that has anyone run into any issues using a brand new bare block? Will be a half fill as it will be mostly a street car. Going to roughly pushing 800HP maybe 900HP.

Now I'm looking at putting some serious milage on this, and I know issues can arise. But I'm not looking to tear the block down again for a redo, as that process will be a hit to my wallet again.

Thanks.

 

That's definitely not a thing.

Just make sure your machine shop does all the normal stuff. Take a minimum cut off the deck, check the main line, and torque plate hone it to final size for your new pistons.

However looking to make 800-900whp and also not wanting to tear into the engine/block ever again is a bit unrealistic.