Is the Motown the best iron block you can get? Money isnt as important to me as having a bullet proof motor. Have heard many good things about motown, but have also heard of people wanting darts instead. Motor will be outfitted with a fully forged bottom end, high flowing heads, superram, and a D1SC pro-charger blower roughly putting 12 psi. What would you get?

 

if money is not an issue then you can't go wrong with dart or motown.

 

Get a Dart little M block. 400 small block is the way to go. Chevy High Performance has done some builds with this block and recommends it.

 

Go with a good aluminum block, It's 100lbs lighter, I did.

http://www.cnblocks.com/splaysbc.htm

Jerry

 

Dang, how much is one of those aluminum blocks?

 

I've also read of a 454 small block in Chevy high performance. If you've got the cash, go big cubic inch small block.

 

where is the best place to get the Little M?

 

you can find them fully prepped on ebay.

 

I also remember reading that when using an AL block, you want to bring your main bearing clearances down, since the AL grows at a different rate.

I heard somewhere, that either Motown or Dart blocks, cause some kind of headache with certain cylinder heads, something about a port not aligning? I'm sorry this information is so completely vague, I just remember it being a red flag to think about. I want to say that I heard this from xpndbl3, but it may have been someone else here.

You can buy them direct from the company I imagine, or from Summit obviously.

Edit, found a lead, something along these lines, for a dart block;
https://www.thirdgen.org/forums/powe...+block+problem

https://www.thirdgen.org/forums/tech...+block+problem

 

motown block and AFR heads don't get along, the coolant passages are exposed. The new eliminator heads might not be shaped the same way i'm not sure. But it's a costly problem as AFR considers the heads mounted and not returnable and motown says it's AFR's fault.

 

After doing some research, listening to suggestions, and asking around, I am leaning pretty heavily towards the Dart Little M block. Now to find the best price. I also want to get the splayed caps.