Among the advantages of these engines are factory aluminum heads, lightweight composite intakes and in some cases aluminum blocks. Many, such as the 5.3L (RPO LM7) have a cast-iron block with aluminum ...
Classic Small-Block Or Ls In Early Nova? I have the chance to purchase a used 400 small-block Chevy short-block for $500 that would require the usual machine work to rebuild. I am debating if it is ...