The race shop building my 1300 is asking me what color I want the engine. I said leave the head aluminum metal but when it comes to the block I'm not sure. I will be paining my '74 lime metallic green and thought I could have the block that color but then thought that may be too much. And I don't like black blocks. Any ideas? The block has to be painted as it's a rust color that the shop said would just return eventually even with blasting. And they refuse to blast because there is a good chance some blasting material will get left behind inside the block.