Hemi anyone? 6.1/ 6.4

[70blackfish]

anyone install a 6.1 6.4 hemi in your truck?

[ho70]

:no

GM trucks do not like mopar engines at all, buy a corvette 427 (LS7). Why bastardize your truck and it is a lot of work changing trans, driveshaft, linkage, mounts and wiring

[MARKDTN]

Originally Posted by ho70

:no

GM trucks do not like mopar engines at all, buy a corvette 427 (LS7). Why bastardize your truck and it is a lot of work changing trans, driveshaft, linkage, mounts and wiring

Agree. What is so great about the modern Hemi anyway? a 6.1 is 425 HP/420 torque. A 6.4 is 470hp and 470 torque. A 6L truck engine is virtually the same output as a 5.7 Hemi-with better fuel mileage. (http://www.allpar.com/mopar/new-mopar-hemi.html)

You can buy a LS based engine for much less that will do the same thing. The LS3 is 430HP/424 torque. If you want the big power (and $$) you can get an LS7 that is 500HP/470 torque or the new Corvette is 450/450.
(http://en.wikipedia.org/wiki/GM_small-block_engine)

Why go to all that trouble to put something in that will fight you the whole way for no gain over what has been done before?

[leftybass209]

I don't see anything wrong with the idea except the lack of aftermarket support and all the legwork you would do figuring out the transplant. I will never understand why some swaps in certain vehicles are acceptable and others are taboo. Different strokes, figuratively and literally In this case.

[DreamRyder1963]

It's an interesting idea. A hellcat 6.4 in a c10 would be cool. The problem is more with the cost of swap and performance parts. Mopars are always more expensive to build then a Chevy motor. You can get the same performance from an ls for a lot less. Plus hemimotors are externally larger limiting your useable space.

[Ft.ValloniaStreaker]

Now, now boys.....while I'm still in the family with my Cadillac, I'm simply not a purist. So get out that shoehorn and if it fits, run it!

[leftybass209]

[quote=Ft.ValloniaStreaker;6827377]Now, now boys.....while I'm still in the family with my Cadillac, I'm simply not a purist. So get out that shoehorn and if it fits, run it![/QUOTE

That sound's like a torque monster! What is it out of?

[Ft.ValloniaStreaker]

Originally Posted by Ft.ValloniaStreaker

Now, now boys.....while I'm still in the family with my Cadillac, I'm simply not a purist. So get out that shoehorn and if it fits, run it![/QUOTE

That sound's like a torque monster! What is it out of?

Got it out of 64 hearse, even got the yoke in the tranny. Traded a pair of '72 doors and a 2 barrel Holley for it! Got it running, building the truck around it as we speak, need a 55 1/2" drive shaft, steering shaft and master cylinder. I'll get some pics someday....

[RManson]

I can tell you this, it would get a lot more attention than any LS swap would. The comments above pretty much sum up why it isn't very common however.

I would love to put a Hemi or a Ford Coyote engine in a Chevy for no other reason than to piss the purists off. lol

[JointTech]

that hemi is a nice sounding engine. Something feels icky about putting a mopar or ford in a chevy. cummins feels like its ok though

[GASoline71]

That's cuz a Cummins isn't MOPAR... just happens to be yarded out of one.

Gary

[BlackedOut67shorty]

It be cooler to swap an older hemi in, the newer ones are not as desirable to retrofit.

[dirtyjim]

late model hemi with hilborn efi stack injection and a pushbutton trans would be different.
I'd drive it

[terry b]

I got a 5.7 hemi in my jeep. That thing rocks. Got a 6.0 in my chevy 2500 van. It ouruns alot of cars light to light. To me the 5.7 pulls a little harder mid range.

[RichardJ]

For those that haven't seen it yet, the new 6.4 Dodge Hemi Hellcat engine has 707 HP, sitting on the showroom floor.

707 Horse Power and an eight spd automatic.

[BigRed76]

Originally Posted by RichardJ

For those that haven't seen it yet, the new 6.4 Dodge Hemi Hellcat engine has 707 HP, sitting on the showroom floor.

707 Horse Power and an eight spd automatic.

I read one article where they dyno'd a hellcat challenger and at the wheels was almost 800 hp, all factory...

[davepl]

Nice work on the Hemi swap!

Originally Posted by BigRed76

I read one article where they dyno'd a hellcat challenger and at the wheels was almost 800 hp, all factory...

Nope, not possible. They're J1349 certified and cannot be over or under rated. Must be within 2% of actual.

That story is as old as motors, really. It used to be true, but not since about 2005.

LS is a fine engine but they aren't the best engine ever built.

They probably ARE the best engine ever built in that price range. Got a one better?

You know what I'd like to see? An LT5 Cheyenne Super.

[noco-k5]

Originally Posted by RichardJ

For those that haven't seen it yet, the new 6.4 Dodge Hemi Hellcat engine has 707 HP, sitting on the showroom floor.

707 Horse Power and an eight spd automatic.

The Hellcat engine is a 6.2 not a 6.4. It's a completely different engine than the naturally aspirated 392 found in the non Hellcat SRT and Scat Pack cars. I have a 2015 Scat Pack and love the 6.4 engine. It makes a ton of torgue and runs great in a heavy car. The 392 doesn't do well with forced induction though, which is why they went a completely different route with the Hellcat motor.

[Fitz]

Originally Posted by RichardJ

For those that haven't seen it yet, the new 6.4 Dodge Hemi Hellcat engine has 707 HP, sitting on the showroom floor.

707 Horse Power and an eight spd automatic.

707 horsepower in a unibody car? When AJ Gottlieb ran the Silver State Classic in 1989 the '69 Camaro (also a unibody car) Big Red used a Donovan 540 pushing just over 600HP. The car was campaigned for two more years then garaged because it tore itself apart. Too much flexure at the suspension pick-up points in the rear and where the front subframe mated to the body. The rebuilt and resurrected Big Red uses a specially constructed tube frame. So, you guys go ahead and drive the wheels off those unibody Hellcats.
I'll just watch from the safety of my Corvette and pass out the Darwin Awards as those Mopars self-destruct! OBTW I am running my 2015 Z06 (650 Hp and a seven speed manual on a full hydroformed 6061 Aluminum frame) in the Silver State this year. Leaving O-Dark Thirty tomorrow for practice at LVMS then on to Ely.

[indymachinist]

Old thinking. Stuck in the past.

[Hubscrub]

Good job I like it! Different

[Lattimer]

It would definitely be cool, just would take a ton of fab work to fit it in there. Not something I'd like to tackle.

The modern Chrysler V-8's seem to be pretty good, in my experience its the trans, rear, and the rest of the vehicle that falls apart.

[BigRed76]

Originally Posted by Lattimer

It would definitely be cool, just would take a ton of fab work to fit it in there. Not something I'd like to tackle.

The modern Chrysler V-8's seem to be pretty good, in my experience its the trans, rear, and the rest of the vehicle that falls apart.

I've seen quite a few of the newer hemi's having problems with valve seats falling out of the heads, causing valves to hang open and sometimes causing more serious damage. But if you really get technical what engines don't have some sort of common problems these days.

[Lattimer]

Originally Posted by BigRed76

I've seen quite a few of the newer hemi's having problems with valve seats falling out of the heads, causing valves to hang open and sometimes causing more serious damage. But if you really get technical what engines don't have some sort of common problems these days.

The 2 Dodges I owned, the ONLY part that didn't give me issues was the engine. Every other damn thing fell apart, shorted out, failed, leaked, clunked, whined.......

[toolboxchev]

Originally Posted by Lattimer

The 2 Dodges I owned, the ONLY part that didn't give me issues was the engine. Every other damn thing fell apart, shorted out, failed, leaked, clunked, whined.......

Me, and my Chevy, It must be jinxed, or could have been one of those special units.

Every lifetime aftermarket part I have put on it has failed, at least once if not more. Now the motor, has 2 rebuilds on it and still pulling strong.