Fixer_Upper
05-08-2021, 12:01 AM
Hello! I知 doing a little digging, supposedly the Fourtrax 350 head is the same as the 350x head. Can anyone confirm this? They look the same, but have different part numbers. I have heard that the Fourtrax 350 head bolts up the same as the 350x head, but will it work? My main worries would be the exhaust/intake ports, valve sizes, and bolt holes matching up. Also, do the heads have the same thickness? (Where the head meets the cylinder, for compression ratios). I知 mainly just wondering this because there are a lot more of these heads, and they are about 200 bucks cheaper than 350x heads. If I had to guess, the difference would be in the porting, or the head thickness. Can anyone confirm this though? Has anyone actually done this?