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.
You might want to go down to the "Inline Six, 200, 250, 4.9/300" with this question. There are a few who have done just that with their 4.9s (switching from from a Carter Single barrel to a four)