Vortec or not to vortec?

[sdelivery]

My understanding of the vortec heads is the piston dish shape plays as important of a role as the chamber design.
I like them but more importantly it works.

 

[GoceKU]

Not too many V8 here but the few that are here often come to me to fix them. Best chevy engine i come across had MAST motorsport cylinder heads.

 

[alloy]

I'm not sure what the piston looks like. The spec sheet says 8.5 to 1 compression ratio. I had the valve cover off and was surprised to find comp 1.6 rockers on the engine. But unfortunately I didn't pay any attention to the casting number on the head. I'll pull the cover off again and see is I can find something. I really don't want to raise the compression ratio.

From what I can see MAST motorsports only has LS style heads.

I found a nice set of dart 200 heads for a killer price, but their website says they are good for 383 to 410 engines. Ports are too big for low end performance.

 

[GoceKU]

The higher compression is what makes those engines come alive, it's too bad you don't have higher octane fuel at the pumps.