I would like to hear what you guys think of this idea. I was reading some reviews and found that :
"maybe either an all aluminum engine or an all cast iron engine. The 4.6L has a cast iron block and an aluminum head, both materials have different expansion rates paving the way for blown gaskets or cracked heads. I tip my hat to Caddy for the post-2004"
Is this right ? I knew that Northstar is all aluminum .I am confused a bit here .However what's even more confusing to me is that those GM Engineers don't have an idea of what an engine should be made of , combined and put together ? Just because reliability problems are addressed from using different materials .
For my thoughts I would be happy if Northstars have cast iron blocks just like Vortec engine .
"maybe either an all aluminum engine or an all cast iron engine. The 4.6L has a cast iron block and an aluminum head, both materials have different expansion rates paving the way for blown gaskets or cracked heads. I tip my hat to Caddy for the post-2004"
Is this right ? I knew that Northstar is all aluminum .I am confused a bit here .However what's even more confusing to me is that those GM Engineers don't have an idea of what an engine should be made of , combined and put together ? Just because reliability problems are addressed from using different materials .
For my thoughts I would be happy if Northstars have cast iron blocks just like Vortec engine .