Re: 4.9L inline 6 performance parts?
I can't say for certain, but the guys at Jegs.com might be able to give you some places that carry parts, if they do not. I don't think I'd agree with wanting to stroke a 4.9L I6. For a 6, it's already fairly large in displacement per cylinder,. Depending on the vehicle year and emissions laws, you might not be able to do much to it except for custom CAI (easy to do for $80 - greatest cost is the filter!), and fab a high flow exhaust.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!