Also, you should have your own engine school. I feel like I'm listening to a good teacher. Again, well done dude.

Sir, YOU are the fountain of knowledge that EVERY Dodge forum needs.

Thank you man I’ve been scared to do this hemi swap to my 04 ram and I’ve been wanting to do headers, eagle heads and cam but I’ve been scared cause this is going to be my first time doing stuff like this but seeing how well you explain has made me more confident in this swap keep it up brother

Everyone makes mistakes, it’s owning up to it is what counts, great information, thank you 👍😁

Looking forward to seeing this build!

You litterally answered like 3 questions I had about the piston setback from the deck at tdc! I honestly thought my rods were wrong!

Love the attention to detail on your build. I also have a hemi and you helped a lot, brotha

Well done dude! Thanks for being so honest. Makes this channel even more worth watching and sharing! Keep it up.

Thanks for making this content. I hope you keep making these videos.

Awesome video, thanks for the updated information.

Thanks for the heads up on this issue!

I think you can definitely tune your way around the high compression ratio, but I think you will have to pull a surprising amount of timing to prevent knock. The high CR though will spool up the turbo really quick though. Going with a taller head gasket is probably the "easiest" way to clean up the CR a bit, however, if you're doing a head swap, then it probably means you're a fairly accomplished mechanic and you might be willing to dip your hands into porting those eagle cylinder heads. If you de-shrouded the valves, you would probably pick up a tiny bit of flow, but more importantly shave off material to increase the combustion chamber size, and having a side effect of dropping the CR. As I've said before in other posts, your willingness to get the right info out there, even if it means admitting you were mistaken, is why I like your channel so much. I had an 08 block hemi with apache heads, but some yahoo that owned it before me decided to swap out a single piston with an eagle piston. I wish I would have known which cylinder it was before I dug into it because it would have been interesting to see how it affected the compression test. The supercharger looks nice sitting on top of the engine!

Great video and great info. I have a 05 Hemi in 02 Dakota and I wanted some more power after I drove a SRT8 Charger. Can I swap the Eagle pistons and rods into the 05 block and use the Eagle heads? I think your correct on the early 03-04 5.7s having different pistons. I had a block from a 04 and the pistons were slightly different than a set I had from an 05. If I still have them I'll double check.

Great update! Nice to see the side by side comparison and get the hard numbers by measuring. I have a few questions: Are you tuning with HP tuners? Will you be doing a video detailing your supercharger setup with those adapter plates ? I’m doing a similar build (05 300c .020 over, eagle heads with the .070 HG, comp cams hrt stage 2 220/230 and springs) I have this feeling I’m going to want more power, and a low impact supercharger might be perfect. I’ll be following your build closely! Also, I have the adjustable pushrod tool you will need to get the correct pushrods for your build, after tomorrow I won’t need it and would be willing to loan it out. Would be a cool video subject. I’m in Oregon if you’re interested

Good follow-up video. I think there is a case for the pre E block with E heads and pistons, price!!!!! You are far more likely to find a cheap pre E block and in many cases in the junk yard they dropped a valve. You'd need heads and pistons and could score those used or even replacements. Now you could do the ultimate non vvt 5.7 and not have to worry about locking the cam or any phaser running. I personally like that idea. This is another option to consider especially when retrofitting into your favorite classic. I'm just happy Mopar boys are in the discussion after GM and Ford being the go to for years with swapping parts from an engine family.

Some old school Hemi guys used to stack head gaskets to obtain specific CRs, however they used copper shims in between them. I have a 66 426 that was a drag motor that had this at one point.

Kid I've been around along time. We have doubled the intake gaskets and it does work.

Compression ratio is also a relative term to some degree. Static compression ratio is a thing, but the cam is really what ultimately determines the actual value. When the valves open and close give you the dynamic compression ratio that is the real number, though buying off the shelf parts would mean a higher static ratio is going to lead to a higher dynamic one as well.

Keep up the good work. Make a video about removing MDS on a stock hemi and or using lifter with the relief hole in them? With MDS delete. I figure it would have excellent oil flow around the lifters.

03-08 hemi with eagle heads right… what cam would you run? All the compression tho no thick headgasket… also awesome content im glued.

Long time listener, first time caller. Can you make a video going over the differences between the 2003-2005 compared to the 2006-2008 hemi engines? I believe they have small differences, but I’d love clarification

Customer of mine has a 2007 charger rt 5.7 with 2013 eagle heads , 0.051" head gaskets , 6 psi from a d1sc supercharger , 93 octane , built and tuned by myself and hasn't had a single issue with it at all. I think being scared of higher compression came from guys pushing the limits early on and breaking things , tuning has come a long way since then and it's not nearly as scary a combo anymore.

13.4:1 is perfect for an N/A build, burning E85!!😮

Nice 👍 video as always , also I notice in American cars ppl shy away from high compression in euro we run super charger on a bone stick 4.2 with 12.5.1 compression from 8psi to 12psi with connecting rods an 93 octane and they never blow

Another great video Sky! Did you happen to compare the piston ring thickness between the two pistons? I do believe the Eagle has thinner rings as well. This not only reduces friction and frees up a bit of horsepower but provides better sealing. They also beefed up the connecting rods for the Eagle, the more you research the Eagle the more impressive it becomes...they really pulled out all the stops and pulled off every trick they could think of to optimize these engines, I am very much a fan.

Exactly what i need to do the swap i got an 07 charger 5.7 and i want a eagle heads swap

Good video, great explanations. My 2 cents...My preference would be to build the engine with a Static C.R. of around 9.50:1, plus/minus 0.25 for a Supercharged or Turbocharged application, street car on pump gas or E85. For nitrous, probably around 10.75:1, plus minus 0.25...presuming street car with pump gas or E85. I'd probably also o-ring the block/heads, but that would depend on how much boost intended to run, what fuel (pump gas, E85, race gas, etc.), and valve events from the Cam and it's impact to Dynamic C.R. And obviously the Tune; building a base Map then dialing in the A/R and Timing, etc. Obviously developing a plan on paper first is essential along with calculations (math) encompassing stack clearences and all aspects. Also intended usage for the vehicle (street, street/strip or strip only) clearly factors in. Thanks!

I'm debating on doing an eagle head swap on my 2006 300C, mostly for the extra HP and not having to worry about valve seats, but I'm not sure about it since I can't find an eagle intake manifold for less than $500 online. Maybe try a junkyard? I've already got long tube headers that are meant for eagle heads, but it seems I'll be in about a grand for the heads and intake, not including sending them to a machine shop, and tuning. I'd also probably be installing them on stock gaskets and just live with the higher compression and premium gas. On stock heads, I'll be able to do 87 gas, but would need to dish out $800 to get them redone so I won't need to worry about valve seat drop.

You and Richard Holdener should collaborate and test the high compression build

I ran dish pistons in my 05 block with 0.051 head gaskets, and eagle heads, was about 8.8 to 1 compression, and twin 67 mm turbos. I wish I would have seen this I’d probably have ran the domes, but screw it, I’ll just throw a little more boost at it!

I think I've read you need spacers to use the eagle intake on the pre eagle block because the peak on the block interferes with the bottom of the intake manifold? I even believe MMX sells the spacers for that very reason.

The only thing about that high of a compression is no pump gas on that compression but if you decide to keep that number of compression there’s a few benefits of that high of a compression is less boost needed and also less intake air temps but the reliability is questionable I’ve seen a few guys trying to make power on boost and things don’t go as planned PFI channel has one that blew trying to make 1k hp under boost.

Do you remember by chance what the piston to valve clearance was at top dead center with the eagle heads on the pre eagle Block

Great update! The thing with not lowering the CR below 10 is that it doesn't leave a lot of room for playing with different boost levels and fuel octanes, right? You are already at the edge of knock, so how much more A/F can you force inside with premium fuel before you detonate? You might end up having the SC and the Turbo running at low boost, I wonder how that would play out. Looking forward to the next one!

I would love to know the what your guess of hp on a pre-eagle with eagle heads would be

I’m not a mechanic, just a pipefitter. However! Gaskets are some of the most vital components of any system. Double stack gaskets? Enjoy the leaks. Glad you’re vehemently opposed to that idea

Great video again. Would you say most of your 5.7 content applies to the 6.1 of the same years? Thank you again for the videos.

I wonder if you can pop the pistons in a mill and remove the domes ...

I'm definitely keeping tabs on this build CR this high with fi will definitely blow in less than 30k

Thanks for your honesty and humbleness. On that note, and for the sake of learning from this community, I was told that you shouldn't stack headgaskets especially under boost due to the fire rings not having a good seal, since you're now introducing multiple paths to a compression leak. I would think this could be mitigated with o-ringed copper shims? But now you've introduced another layer of material with different thermal and torque properties... Anyways, thanks for your content and this community.

Will the ring land on the Pre-eagle pistons be able to handle compression that high with boost? I’ve always heard that they are the weak point in regards to boost. Thank you!

Dude you are smart!

I've been running and or built serval different Eagle head combo's on 03-08 blocks since spring 2016, My Nephew Taylor(Jensen) has my old 05 Rumble Bee which has 45k miles on that Eagle headed stock 05 Short block. My current 04 GTX daily driver was swapped to Eagle heads in fall of 2017 and I ran that combo to spring of this year(2022), now it has a set of Apache heads... With -.003 deck height and .028 steel shim gaskets, Compression is roughly 11.7 to 1 with the OEM 03-08 pistons, Eagle head chambers can vary as much as 3 CCs, 03-08 Hemis - deck height can be as deep as .007(.007+028 gasket and 67CC Eagle heads will yield 11.27 to1 ) I keep total timing for 93OCT to 24* all in by 2500 RPMs, for 89 oct , WOT is limited to 21 all in by 2500 , PT spark table is limited to 26* below 70KPA, 70KPA to 105 is limited to 21*. With the Eagle Truck Intake you can heat up and reshape the underneath of the TB Inlet ,but even then you still need at least 3/8 in spacer to clear the widows peak. The 1st "test" engine I did this swap to I ground down the area where the H20 sensor is in the block, formed a piece of alum and JB welded it in place for clearance so I could use a Intake off a 2012 5.7 Challenger. One of the Best Intakes for this swap is OCP dual plane intake, don't be fooled with the term Dual plane Intake, that manifold will hold it's own with many modern oem Hemi Intake , it will not out power the SRT6.4 but it's within 20 peak HP and will make the same Tq#s below 5k RPMs ........ I've run Drag pak,Prefix, Ritter ,Holley Sniper,(and Race) Holley Hi ram SRT6.4, 6.4 truck intake...even a Home brewed Modified LSX Holley single plane intake, and a cut up welded together Frankenstein looking Edelbrock 351C RPM intake, I've run 2.165 Intake valves , 1.63 Exhaust valves, Cams as large as .600 lift......the biggest issue with this swap is going too far with timing, all of the OEM timing curves are too aggressive for the 03-08 OEM pistons (@11.7 to one compression) eventually the edges above the ring lands will break. FWIW .070 thick head gasket brings you down to 10.5 (all things being perfect) Cometic does make a .140 head gasket for those who want 9.0 compression from this combo.....FWIW that head gasket will hold up to 20LBS boost with Inconel studs and good fuel. {edit: with the OEM 03-08 pistons , I personally think even 10.5 is too much Compression for this Combo and Stock Timing curves found in 04-08 OEM hemi vehicles}

Question: I put eagle heads on my 2007 ram 1500. There is a ground strap that runs from the firewall on the passenger side to the back of the pre-eagle heads. There are no tapped holes on the back of the eagle heads. Where should I hook the ground strap?

Hey buddy. I have a 2019 Ram 1500 Rebel with 5.7 hemi and have installed a oil catch can which is collecting a fair amount of oil. Why does my hemi pass so much oil, or what is exceptable?

Stacking gaskets would most definitely screw up torque specs. Im not sure about that but im about to oook into getting pre eagle pistons. What gains may that yeild N/A?

Where do you recommend to buy a new cylinder head for a 2015 ram 1500? I just can’t find any luck in sourcing one without it being warped past spec.

Question, do you need to run premium gas if you do this? I ironically fell into everything to do this swap minus the pushrods but those are cheap and easy to get. But I drive my car a hour each way to and from work each day so if it don't require premium id like to do this.

I have an 06 300c with a bad pre eagle 5.7 hemi engine & 5 speed NAG 1 transmission. I want to swap in a 5.7 with the 8 speed from a 2019 Challenger crashed donor car. What all do I need from the crashed Challenger to make this work?

So, I have an 03 Hemi which should have 9.6:1 compression. Did you do the math on the early model pistons too see what the compression ratio would be with eagle heads? I assume the math in the video is based on the higher compression 05+ pistons you mentioned.

We've known for a long time guy. 10.5.1 with aluminum heads and 9.5.1 with cast heads for proper pump gas friendly

What about the 03 engines with the 9.6 pistons and the eagle heads?

How are you going to eat up 0.07 extra length in the valve train?

I have a 6.1 hemi engine and i want to put 6.4 apache heads on her already doing a custom build the bore is set at 4.61 will these heads work?

So what size push rides did you use for your project there?

Would I be able to put eagle heads from a a charger or challenger onto my pre eagle ram engine?

12:1 compression ratio on cheap pump gas with that head gasket mod for the non eagle pistons safe on a charger 5.7L?

Hello, love the content of video's but I think your crazy I would run this 13: and save the blower for the next engine.

How about porting factory non eagle heads? Any advantages or gains I should expect? 2005 ram rumble bee!

Does anyone run water/methanol inection anymore? Years ago a friend of mine had a built C6 Vette with 12.5 compression and many other mods. He had a tank he filled with rubbing alcohol and water, and it was injected into the air intake tube before the throttle body. This allowed him to run a pretty wild tune on 91 octane pump gas without detonation. I haven't seen anyone using that method since then, and that was 10 years ago

What length pushrod is needed for this head swap using the cosmetic gaskets

So I'm getting ready to powder coat my 5.7 Eagle hemi Intake Manifold I've already attempted to remove it however there's a rubber hose in the very back, I couldn't get this off. If you could point me in the direction to get it disconnected properly to make this process smooth that would be great.

Important to state that truck hemi is still 9.6 compression from 2003 to 2008. When the charger came out in 2005 is when they designed the "car hemi" for the charger and challenger so they didn't really "bump it up" its actually another engine. While somewhat different these are both considered pre eagle. 2009+ Truck hemis were eagle 2011+ car hemis were eagle

It's actually 12.4 to one with .030 gaskets , I've been running that combo for a few years , the guy who built my 05 ram has been running eagle heads since 2016 in his 04 ram. Also there is a .120 head gaskets out there.

I have a question about the oil cooler on my 2021 scatpack challenger. When changing the oil, do I need to drain the oil cooler also?

The slick "no pun intended" 😂😂😂

Many people were steered wrong by this guy

Sky, any tips on identifying reman g3 heads?

Can you answer me 6.4 heads fit on 5.7 2015?😊

Where are you getting that in 2005 they updated compression to 10.5:1 everything on the internet says the 5.7 was 9.6:1 2003-8

Has anyone done a high compression N/A build on a pre-eagle 5.7 with eagle heads???

not sure if you have mentioned or addressed the replacement pushrods yet either.

What is the break over point on boost and compression then? I was taught that you don't ever want to go over 9.5:1. Anything above that you will bend rods and break ring lands.

Hey I'm actually building a 2006 charger rt with pre eagle block with eagle truck heads I put everything together having issues with head gaskets an a bent push rod I have a few questions

You should get forged pistons that can take some boost. hypereutectic pistons aren't that great for boost

Good stuff, but like others have said, pretty sure all Pre Eagles are 9.6 Comp, as for your build being FI, I would forsure go with the Eagle heads and Eagle pistons, in an NA application the stock Pre Eagle pistons would be perfect, but Lower comp is the way to go with FI 👍

Sounds like it’s time for E85

I think this is an awesome idea bro…being a life long fan of the Jackass crew and their movies I’d love to see a video WHEN the engine blows up so keep us posted please😁

I have a 2006 Carger rt and I found a 2012 hemi can I run this engine with the cars stock wiring and ecu

Can you put a Hellcat blower on top of a SRT8 6.1l without any engine upgrades?

6.1 Is a weird mix of eagle and pre-eagle. Mostly pre-eagle, but with port designs that match Eagle stuff, no EGR port and the lower rocker assy height, shorter valves etc.

Blow thru carb and meth or water injection and some compression can be fire, just always test system and keep boost level reasonable

Can you give more details on what block this is? And what year it is? I'm not familiar with a 5.7L non Hemi block.

Is there any differences with the eagle heads between the the different models, like grand Cherokee/Durango 5.7 and the ram 5.7?

I am running Eagle heads on my 04 5.7 block with a comp 273 cam and Holley high ram on e85 on stock head gaskets

Im a master engine builder. Forced induction and high compression only work on alcohol cars or e85 Bloodviking

Man I want to do this swap soo badly I have an 05 2500 with the 5.7 its gutless and needs more power

Just buy the right pistons, ya put those thicker gaskets on, Its gonna change the preload on your lifters because the pushrods are too short. If ya gonna go boosted why mess with the factory Cast pistons , also if you put eagle piston and rod assemblies there is a 1 oz differnce on the weight so you need to properly have the whole rotating assembly balanced.

When you buy a head gasket are you buying it for the eagle or pre eagle variety

13.4:1 would need at minimum 100 Octane unleaded to not ping itself to death.

If your going to be running lots of boost, you are going to have trouble with thicker head gaskets.

13.4 O_O yo. that might be a nasty build. Canadian here, i run 91 octane all the time, wonder if that'd be good enough or if you'd need the good 93 (not sure where to get that where i live) or even aviation fuel. Or just some octane booster deal. from 10.5 to 13.5? Makes me think

3:00 everything I have ever read always said the 03-08 pre eagle motors are all 9.6:1 compression, and nothing changed in that time as far as pistons and heads. In 2005 when the 6.1 was released that motor had I believe a 10.2:1 compression, and it wasn't until 09 when the eagle hemi came out that a gen3 hemi had a compression of 10.5:1. Am I wrong or what?

I wouldn't be afraid to run 11.8 to 1 on a forced induction engine. But I am afraid to run boost on an engine with a .070 thick head gasket. That's an awful wide gasket to try and resist the added pressure of the blower in my opinion.

Can't build it, piston to valve

So 2005 up has 10.5 CR? I tought all 03-08 are same 9.6 CR. Many VAG, BMW etc turbo engines has around 9.5-10 CR ratio. Im not fan of thicker headgasket or spacer, because losing quench area. What i think is important to avoid detonation etc problems on SC engines.

What about push rod length?

Run e85 and methanol injection and you should be able to control some of the detonation

Where'd you find the information that in 2005 the 5.7 hemi in the cars were bumped to 10.5? Everything I'm finding says it's still 9.6:1

The compression ratio isn't the biggest concern. It's the 70 thousandths head gasket on a boosterd engine. You're probably gonna start blowing gaskets.