When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My 2 cents - try a high comp piston first and a cam - or just take it to a 416 rather than straight to 440. I guess whether it's worth the money is all relative to the person and what they expect.