Just what I was looking into! I’m debating porting my 5.7 intake, but also researching 6.4 intake. I hear fuel economy goes out the window on 6.4, but if I wanted fuel economy, I’d be driving a Tesla.
I want to buy a 6.4 manifold and get it ported but I already bought an intake for my 5.7 manifold. Is it worth it to get a ported 5.7 to match my intake or bite the bullet and get a new intake with the 6.4 manifold
Depending on who ported it, it’s should match great. I know my 5.7 ported intake manifold was much bigger than I expected. The 84 mm Fastman is a perfect match for the stock 6.4 too. I’ll be port matching the runners to the BES heads soon, will help overall. What TB you go with?
@@TunedRAMS I'm still on stock t.b. I did polished it real good, it was one of the first things I did but dyno registered it but could have been the placebo effect, I was instructed to wait for boost to get a larger t.b. but I keep hearing alot of n.a. gains so I wonder if maybe I should go larger 🤔
I have a ported 5.7l intake but also got a 6 4l intake for my RT. I will port the 6.4l intaie as well before running it. Bad thing theirs no dyno sheets of a stock intake & ported 5.7l intake.. just bad comments or video about it lol
both the 5.7 and 6.4 car intakes have the same size TB port and runner ports to the ones you took. both over lap eagle head ports. a ported 5.7 is ok but aported 6.4 is the best you can do for 5.7 cars. it will match up the runner ports, then you can match up the TB port to any size TB you have, though opening up the car 5.7 TB port involves a ton of plastic removal. the 5.7 car intake manifold is a crappy design compared to the 6.4. both ram manifolds are way better design and both have the active short runner valves. someday I'm going to see if I can some how get a 6.4 ram intake to fit in the Durango. the runner lengths on the trucks are where real difference is, stock 5.7 vs stock 6.4. A ported 6.4 for the ram would be the absolute best you can do.
