Port matching intake manifold?

[HemiBrother]

So recently cleaned my throttle body on 2013 ram 1500 5.7l I bought and well let’s just say that was definitely a maintenance step ignored by previous owners of the truck. Anyways I’ll be doing my plugs next and was instructed if I ever remove intake manifold to give it a good cleaning as well so while I am in there changing plugs figured I’ll do just that as well. So my question is while I have the manifold off is there any benefit to port matching the manifold to the head ports?Ive seen people doing this to chargers and challengers with the 5.7 in them so was just wondering. Truck has 108,000 miles but is smooth strong runner surprisingly with how dirty the TB was haha. But when I bought the truck it already had CAI and cat back exhaust on it and I have new less restricted y pipe and high flow cats for it I’ll be putting on soon. Also going to be ordering a Diablo tuner. I’m not looking for over all power gains but just some pep to its step and I never mind tinkering with my vehicles so any thoughts on the subject are appreciated.

 

[GeauxinUp]

So recently cleaned my throttle body on 2013 ram 1500 5.7l I bought and well let’s just say that was definitely a maintenance step ignored by previous owners of the truck. Anyways I’ll be doing my plugs next and was instructed if I ever remove intake manifold to give it a good cleaning as well so while I am in there changing plugs figured I’ll do just that as well. So my question is while I have the manifold off is there any benefit to port matching the manifold to the head ports?Ive seen people doing this to chargers and challengers with the 5.7 in them so was just wondering. Truck has 108,000 miles but is smooth strong runner surprisingly with how dirty the TB was haha. But when I bought the truck it already had CAI and cat back exhaust on it and I have new less restricted y pipe and high flow cats for it I’ll be putting on soon. Also going to be ordering a Diablo tuner. I’m not looking for over all power gains but just some pep to its step and I never mind tinkering with my vehicles so any thoughts on the subject are appreciated.

Not sure how much money you're willing to play around with, but you could keep a lookout on ebay for a good used 6.4 truck intake.

 

[HemiBrother]

Not sure how much money you're willing to play around with, but you could keep a lookout on ebay for a good used 6.4 truck intake.

Something else I was researching on. Are the ports on a 6.4 already a little closer to actual port size then the 5.7l one? Also would running the 6.4l injectors require a custom tune? I’m going to be ordering a tuner already but was just going to go with Diablo from hemifever site I heard that’s a great bang for the buck deal with these trucks. Again not looking to go all out and try to see what it can be pushed to for it’s a 6” lifted truck with 35s. So a little gains are for pleasure when need be but not for trying to race around in a truck and also for well it’s fun tinkering with vehicles but on the same note like to keep that reliable factor as well. It’s at a 108k and probably not practical to even be putting the parts I am putting on it and the others I’ll be putting on but it’s a super clean truck and if motor went tomorrow it would be getting a new one for that matter supporting parts would just come off old and go onto new one. Really liking the truck to say the least.

 

[GeauxinUp]

Something else I was researching on. Are the ports on a 6.4 already a little closer to actual port size then the 5.7l one? Also would running the 6.4l injectors require a custom tune? I’m going to be ordering a tuner already but was just going to go with Diablo from hemifever site I heard that’s a great bang for the buck deal with these trucks. Again not looking to go all out and try to see what it can be pushed to for it’s a 6” lifted truck with 35s. So a little gains are for pleasure when need be but not for trying to race around in a truck and also for well it’s fun tinkering with vehicles but on the same note like to keep that reliable factor as well. It’s at a 108k and probably not practical to even be putting the parts I am putting on it and the others I’ll be putting on but it’s a super clean truck and if motor went tomorrow it would be getting a new one for that matter supporting parts would just come off old and go onto new one. Really liking the truck to say the least.

There's actually a truck 6.4 intake on ebay right now for $500. You can always port that manifold if you wanted (a few vids on Youtube showing how to do it). Yes, 6.4 injectors require a tune, but you can swap your 5.7 (plus spacers) onto the 6.4 intake with no custom tuning required.

 

[DILLIGAF]

6.4L intake porting is a waste of time if you dont have a cam / Long tube headers / And a proper custom tune.
Diablows is hot garbage. Get HP tuners as it tunes the 8 speed properly.
That less restrictive Y pipe is a waste of money. Look at the factory manifolds and how restrictive they are ...lol... Thats like ******** your pants and changing your shirt... lol...
And you mention noting of your gear ratio. thats the first thing to address with bigger tires and lift.
and f your 2013 as a 6 speed transmission. your up ***** creek without a paddle. because as soon as you push power thru that HEMI youll need to do the 8 speed swap... Ask me how I know. lol...

 

[HemiBrother]

6.4L intake porting is a waste of time if you dont have a cam / Long tube headers / And a proper custom tune.
Diablows is hot garbage. Get HP tuners as it tunes the 8 speed properly.
That less restrictive Y pipe is a waste of money. Look at the factory manifolds and how restrictive they are ...lol... Thats like ******** your pants and changing your shirt... lol...
And you mention noting of your gear ratio. thats the first thing to address with bigger tires and lift.
and f your 2013 as a 6 speed transmission. your up ***** creek without a paddle. because as soon as you push power thru that HEMI youll need to do the 8 speed swap... Ask me how I know. lol...

appreciated info. It’s 6 speed and 3.55 gear yes not ideal but was on truck when I bought it. Am not looking to hot rod it just tune it up a little.

 

[Wild one]

appreciated info. It’s 6 speed and 3.55 gear yes not ideal but was on truck when I bought it. Am not looking to hot rod it just tune it up a little.

6.4 and 5.7 intakes use the same port size.There's maybe at most about 8 to 10 hp to be gained by porting either intake. I have a fully ported 5.7 car intake sitting downstairs,that after spending about 10 hours porting didn't pan out on my stock 300,it would work good on a cammed 5.7 or a 6 speed Challenger where the shift points are closer to 6500,but on a stock 300 with the factory 5600 rpm shift points it wasn't good,but the car 5.7's are a single runner intake.I pulled it back off and put a stock intake back on the car.
I ported the stock intake on my truck,and it worked good,but it was cammed/long tubed ,and the 8 speed was tuned to shift at 6600 rpm,and it had a 75 shot of nitrous,and in that case,it was definitely worth the time to port it
When i ported the intake on the wifes 1320 Challenger it worked great,but it's a dual runner manifold,and the 1320's shift at 6400/6500 rpm and have a factory high stall torque convertor.
If you're running a stock cam,the time spent on porting one is hard to justify,but if you're cammed with long tubes /high stall convertor with an 8 speed,with your shift points bumped up to 6500,then it's worth it.
As Dilligaf states,you start adding power to your 6 speed transmission,you'll get good at swapping transmissions,as they don't take kindly to power,learn how to drive it,to get life out of it,which is no wide open downshifts on the highway,get in the habit of manually downshifting it,before you floor it to pass,and no wide open high speed runs.The transmission is good from a dig,but it won't take a rolling wide open downshift,unless you pre-downshift it,and wide open high speed runs will take out the overdrive clutches,and no matter what anybody tells you,the tranny can't be built to handle a higher powered 5.7,so if it blows up,don't worry about rebuilding it,just get another one from a wrecker and slap it in,or better yet,do the 8 speed swap
If you're putting a 6.4 intake on a 5.7 truck,i'd just clean the hell out of it,and slap it on with new gaskets,and use your 5.7 injectors with MMX's spacers.
You can easily clean your stock injectors at home.
There's a video in the first post that's worth watching.

Injector cleaning

Supposed to go cold and snow for the next 10 days,so i figured it was a good time to pull the injectors and give them a cleaning.Got them soaking in injector cleaner,where i'll probably leave them for a couple days before using some carb and choke cleaner to wash them out using my old homemade...

www.ramforum.com

 

[crackerjack1957]

appreciated info. It’s 6 speed and 3.55 gear yes not ideal but was on truck when I bought it. Am not looking to hot rod it just tune it up a little.

With those 35 inch tires your 3:55 gears become about 3:30
Best to change transmission to 8hp70.
The 65RFE with 3:55 gears & tall tires is far from performance even with a tune.
Speaking from experience.....LoL

 

[Sillygoose]

love forums. simple question turns into you need a new transmission.

 

[Wild one]

love forums. simple question turns into you need a new transmission.

Tag your it for Dumb Comment of the day.Winner / Winner Chicken Dinner you got this one today

 

[crackerjack1957]

love forums. simple question turns into you need a new transmission.

Don't think the op was wanting to putt around when asking about porting a 6.4 intake on a 5.7 and a tuner.
I had to change to 4:56 gears & 3k stall converter for my 65RFE because the 8HP70 conversion wasn't an option back in 2018 on a 2014 Ram 1500.

 

[Sillygoose]

might want to read what he actually wrote

 

[HemiBrother]

Wasn't looking to port match a 6.4 intake. That was just mentioned as an option by someone else was a 6.4 swap. Tuner and doing small bolt ons wasn’t quest to go to track or down the highway faster I’d do that to my Durango well before this truck. I more or less figured a little more pep, throttle response, and easier breathing capabilities. But all input was greatly appreciated. Also ram being new to me and just doing general searching and watching stuff others have done never hurt to ask if maybe some of these little things help or waste of time even though I do love to tinker with cars but seen it best to join a forum and ask some questions and thoughts and get suggestions from fellow Ram owners who may have done a thing or to and learned a thing or two. Again all input much appreciated everyone.

 

[crackerjack1957]

might want to read what he actually wrote

Looks like you help out here a lot .
Nothing but dumb*** remarks

 

[Wild one]

Wasn't looking to port match a 6.4 intake. That was just mentioned as an option by someone else was a 6.4 swap. Tuner and doing small bolt ons wasn’t quest to go to track or down the highway faster I’d do that to my Durango well before this truck. I more or less figured a little more pep, throttle response, and easier breathing capabilities. But all input was greatly appreciated. Also ram being new to me and just doing general searching and watching stuff others have done never hurt to ask if maybe some of these little things help or waste of time even though I do love to tinker with cars but seen it best to join a forum and ask some questions and thoughts and get suggestions from fellow Ram owners who may have done a thing or to and learned a thing or two. Again all input much appreciated everyone.

Keep an eye on your intake manifold bolts,they have a habit of loosening off,i actually check them every oil change with a 5/16" nutdriver,if i can twist any of them,i retorque all of them,they call for 108 in-lbs or roughly 9 ft-lbs.
If you pull the manifold to give it a good cleaning Felpro gaskets are a decent quality and alot cheaper then buying them at the dealer.The last set i bought a couple days ago,even had the throttle body gasket in them,the earlier sets didn't,and you had to buy it seperate,so now i have a spare new throttle body gasket,as i also ordered a new TB gasket,based on the other sets i've bought over the last few years.This thread has the torque sequence posted a few posts down.

Check your intake manifold bolts

This hasn't been talked about for awhile,but check your intake manifold bolts.They call for 108 in-lbs or roughly 9 ft-lbs of torque,and they should be checked at least yearly,as they do loosen up. I've been doing mine at least twice a year on all 3 of of my hemi equipped vehicles.They should be...

www.ramforum.com

Amazon.com: FEL-PRO MS 97089 Engine Intake Manifold Gasket Set for Ram 1500 : Automotive

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If you have the manifold off,it's easy to do a home cleaning on your injectors.I think i might have already pointed you to this thread on how i clean them,but in case i haven't,this link shows how i clean them, there's a video in the first post,that's worth watching.

Injector cleaning

Supposed to go cold and snow for the next 10 days,so i figured it was a good time to pull the injectors and give them a cleaning.Got them soaking in injector cleaner,where i'll probably leave them for a couple days before using some carb and choke cleaner to wash them out using my old homemade...

www.ramforum.com

I probably gave you this link to,but here's how i stay on top of maintaining the coils

Coil cleaning pics

Yea i know my picture taking abilities suck,lol Hopefully you guys can tell how i go about cleaning up the coils from the pic's. The first pic,is just a pic of everything disassembled.If your truck has the resistors under the spring in the coil towers,you'll want to remove them and clean them...

www.ramforum.com

 

[HemiBrother]

Thanks Wild one!

 

[HemiBrother]

Off the original topic but I said 3.55 gears before but truck actually has 3.92 gears after looking over paperwork I received with truck purchase. I payed no attention to the optional equipment package truck came with. 3.92 rear axle ratio.

 

[Tominator223]

Don’t know how much truth in this. But I recall seeing a vid. They 6.4 swapped intake to a 5.7. With the 5.7 injectors. Using the spacers wild one mentioned above. And they said it was a 30hp increase without a tune. Stock. Also depending on year , you may have to extend tb wires. Like I said above don’t know if there’s any truth to that claim of 30hp. For just putting a 6.4 intake on a 5.7. Putting not pudding lol.

 

[Wild one]

Don’t know how much truth in this. But I recall seeing a vid. They 6.4 swapped intake to a 5.7. With the 5.7 injectors. Using the spacers wild one mentioned above. And they said it was a 30hp increase without a tune. Stock. Also depending on year , you may have to extend tb wires. Like I said above don’t know if there’s any truth to that claim of 30hp. For just putting a 6.4 intake on a 5.7. Putting not pudding lol.

The 6.4 intake makes more torque,due to the longer runners,to about the tune of 20lb-ft under 5,000,over that it really doesn't make all that much more horsepower then the 5.7 intake.
You want torque with a truck,and that's where the 6.4 truck intake shines
The horsepower king of all the composite intake manifolds is the cars 5.7 intake,but it's down on bottem end torque.
The car intake has the straightest shot from the throttle body to the intake ports,and it also has the shortest intake runners,but it's not a dual runner intake,so it loses out on off idle torque to the other 3 composite intake manifolds

 

[Wild one]

Hemi Advanced Performance Builds​

Gordon Paden ·
Group expert in Automotive Tech
· 3d ·

Topic for discussion this afternoon




https://www.facebook.com/groups/469...SJR-NPx_ijN0QOtNO7EnTZO3Iz0VA&__tn__=<<,P-y-R

Gordon Paden is with Jesse Smith and Dane Arnold at Scoggin Dickey Parts Center.​

3d · Lubbock, TX, United States ·
HEMI 5.7/6.4 Car Intake Manifold Discussion
Yesterday, this topic resurfaced:
"Is the 6.4L car intake better than the 5.7L car intake?"
(Note: This is not a comparison to the 5.7L truck intake, which is widely known to be subpar. The 5.7L truck intake absolutely needs to be replaced with the 6.4L truck intake.)
Test Setup:
• Engine: 5.7L Crate Engine (Part 68303088AC)
• Camshaft: 223/231 .596/.596 111 (+2)
• Exhaust: Kooks dyno headers
• Throttle Body: Stock
• Timing: 20 degrees
• Fuel: VP Performance Unleaded
Testing Process & Findings:
This test was performed during our previous camshaft testing with the 5.7L engine. We installed our Stage 3 camshaft in the 5.7L crate engine and conducted multiple validation runs with the stock 5.7L intake. Once we finalized the camshaft numbers, we swapped in the 6.4L intake and tested different runner positions, moving them incrementally across various RPMs, as well as fully in both directions.
After 15 or so dyno pulls in multiple configurations, the results were clear:
• At 5000 and above the 6.4L intake did not produce a horsepower gain.
• In fact, it resulted in a net loss of power compared to the 5.7L intake.
This morning, I revisited all the test data and, with Dane Arnold’s help, compiled the graph in this post averaging the top three runs from each intake configuration for a direct comparison.
Additionally, we further confirmed these findings during our 6.4L test. When we swapped the 5.7L intake onto the 6.4L engine, the results remained similar rather than showing a loss, reinforcing our earlier conclusions that the 5.7 car intake is a good intake in stock form. Now a ported 6.4 might yield higher numbers but so would a ported 5.7. After posting these results last year I had a ton of people commenting and messaging me stating that they had seen the same results on their cars when hot swapping the intakes at the track. These were all bracket racers with A - B - A comparisons at the track and they either saw no gains or lost MPH. Many of these people posted these results and got so much hate on the topic that they stopped discussing it. After months of discussions with people and data collection I concluded that the net gains people were seeing was from the tune that was done at the same time and not from the intake manifold swap alone, where the intake is the ONLY variable that was changed.
Dyno video for reference:
https://youtu.be/RxSQDvgqeAY?si=htiNn-gaU5w4P8Vo