Previous Thread
Next Thread
Print Thread
Page 2 of 3 1 2 3
Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2923734
05/18/21 12:03 AM
05/18/21 12:03 AM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
I've found out that the 2003 to 2008 engines had 9.6 compression.
The stock stroke is the same as a 360....3.58 inches. A longer stroke can push the CID to 392-400+ inches.
I've looked at rotating assemblies. Some list some oddly low compression ratios. I wonder if these are for people that intend to run a supercharger?
More cubes would allow me to retain the axle gearing as is.
I do not want to give up reliability and durability just to gain power. I know that as the stroke gets longer, the piston sometimes gets shorter. I don't want hockey pucks for pistons that wear out the rings in 40,000 miles. I'm at 358,000 with this stock engine. If long term durability is an issue with an increase in stroke then I'm sticking with what lasts.

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2923960
05/18/21 12:55 PM
05/18/21 12:55 PM
Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
The SRT "manifolds" are actually a shorty header, that s why they flow a little more but a little more ex flow is not going to translate into much HP on a basic 5.7 and it will be obvious to the inspectors and is not CARB legal, either get a long tube CARB legal header (if there is such a thing) or don't bother.

Another decent compromise would be if you can find a 6.1 long block to slide in there with a good tune... cheaper than a stroker but still have OE reliability. Not super obvious to someone poking around under th hood especially if you paint it black.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Stock rebuild with a few legal upgrades [Re: HotRodDave] #2924161
05/18/21 10:15 PM
05/18/21 10:15 PM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
I like the idea of swapping in a 6.1 but I am so new to all the interchange stuff, I would be flying blind.
I don't know if the intake ports would line up with the 5.7 intake, I wonder if the PCM would have trouble with the bigger cam in the 6.1, I don't know if the truck oil pan and oil filer location is compatible with the 6.1 block....

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2924224
05/19/21 07:53 AM
05/19/21 07:53 AM
Joined: Jan 2003
Posts: 18,684
San Jose,CA
migsBIG Offline
I Live Here
migsBIG  Offline
I Live Here

Joined: Jan 2003
Posts: 18,684
San Jose,CA
5.7, 61, 6.2 all are cool and some parts are specific to even the truck models Holley has been doing a ton of mods for those for new and old school rides. It's a bit of a read, but I think you could get a couple ideas from them.




Holley HEMI

Dodge Garage

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2924498
05/19/21 04:43 PM
05/19/21 04:43 PM
Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
A 6.1 long block has all the mounting holes and such that you need, same oil filter location and any adapters that may come on it are an easy swap to use your 7.7 adapters. The oil pan and sucker tube need swapped on (not hard) timing cover needs swapped (not hard), intake bolts on and it's much easier to swap the engine when you have the intake off any how. Ex manifolds are different but easily swap and you probably want to put in new bolts anyhow... the computer will notice it running leaner and add fuel for you, not perfect but will get it close (a tune will certainly help just like it would on a 5.7 but is not absolutely needed, my ram 1500 with a 6.4 runs awesome with a stock tune and that is an even bigger difference). If you were to buy a 6.1 long block from say auto zone it would litteraly bolt in exactly like a 5.7 long block from auto zone. No need for this to be complicated.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Stock rebuild with a few legal upgrades [Re: HotRodDave] #2924632
05/19/21 08:54 PM
05/19/21 08:54 PM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
Originally Posted by HotRodDave
. If you were to buy a 6.1 long block from say auto zone it would litteraly bolt in exactly like a 5.7 long block from auto zone. No need for this to be complicated.


Yikes!

****************************************************************************************************************************************************
NuTech Long Block Engine DDM1
Part #
DDM1
SKU #
377848
4 year warrantyYear Warranty
0.0
(0)
0.0 out of 5 stars.

fits your vehicle
Notes: Long block, IMPORTANT: See Warranty Information Bulletin. The VIN #is required to ensure that the correct part is shipped. Block cast #5037388AB. Left head cast #5037369AA. Right head cast #5037369AA. Cam cast #379AD. EGR in right head. Call NuTech at 1-800-790-9094 for customer service, availability and technical assistance.

$
5804
99
+$1160.00 Refundable Core
**************************************************************************************************************************************************

That is almost $7000 !
Maybe I'll look at used ones?

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2924919
05/20/21 04:10 PM
05/20/21 04:10 PM
Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
I wasn't actually suggesting buying one from autozone or even a new one, I was just telling you that so you would get the idea what it would be like putting one in. I would suggest getting a used one.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Stock rebuild with a few legal upgrades [Re: HotRodDave] #2925012
05/20/21 09:01 PM
05/20/21 09:01 PM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
I know. I am not against spending a few extra dollars but that rebuilt one gave me sticker shock.
About a year or so ago, a guy online was talking about "rebuilt" 5.7 engines for $2500 installed. I called him out on it, telling him that you couldn't even do a quality rebuild for that price when you factor in parts and machine work, let alone installation.
I have never bought a "crate" engine. I have rebuilt every one since 1990.
A used 6.1 could be a good idea. I'd be tempted to tear it down to hone the cylinders and replace the rings and bearings.

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2925214
05/21/21 02:02 PM
05/21/21 02:02 PM
Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
A few years ago a brand new short block 5.7 eagle used to be $500 bucks! New not re-man! I was so upset when I found that out just after re-building my own cuz my ring and bearing kit cost almost that much, I knew then I should buy a bunch and stash em cuz just like magnum cylinder heads they were too cheap for a while and they were gonna go through the roof, I just didn't have the money. Same thing when SRT8 6.4 cams were $68 brand new from the dealer now they are like $200. Next time I find something cool that's way under priced at mopar I am buying a huge pile of em.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Stock rebuild with a few legal upgrades [Re: HotRodDave] #2925323
05/21/21 09:02 PM
05/21/21 09:02 PM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
I read where you wrote that you have a 6.4 in place of the 5.7. Is that a VVT engine? Can one of those be retrofitted to a 2003-2008 style cam?

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2925328
05/21/21 09:18 PM
05/21/21 09:18 PM
Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 10,859
Kalispell Mt.
My 5.7 was a VVT engine (2011) your is not (2008 and older= non vvt).

I would have to look again butt I think tone wheels are different, cam would need to be locked, timing cover is different and yours wont fit a 6.4, I don't know if there is one that would work on a 6.4 with your accessories. AC compressor was relocated on trucks. Your intake will have a significant mismatch on the big 6.4 ports. It could be done but it is not such a straight forward swap as a 6.1 anybody who can swap out a 5.7 for a 5.7 could swap a 6.1 in place of an early 5.7. If you can swap late 5.7s you can swap in a 6.4 just as easy. Maybe we should call them gen 3.0 and gen 3.1 hemis? Like they do with computer programs...


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Stock rebuild with a few legal upgrades [Re: HotRodDave] #2925544
05/22/21 02:14 PM
05/22/21 02:14 PM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
Last year, I bought a book by Larry Shephard about rebuilding the 3G Hemi. While it does have some great information, there is almost nothing in there about mixing and matching stuff from different years. THAT was what mattered to me the most.
We have all developed years of experience with the A, LA, Magnum, B and RB engines and their interchange of parts. With the millions of these new engines that are out there, I am surprised to find so little information other that what I have read here.
Thank you, though. It isn't as if I am UNgrateful. I am just surprised.

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2928788
05/31/21 09:24 AM
05/31/21 09:24 AM
Joined: Feb 2021
Posts: 70
Souderton
T
Taylor Offline
member
Taylor  Offline
member
T

Joined: Feb 2021
Posts: 70
Souderton
Originally Posted by Frankenduster
I've found out that the 2003 to 2008 engines had 9.6 compression.
The stock stroke is the same as a 360....3.58 inches. A longer stroke can push the CID to 392-400+ inches.
I've looked at rotating assemblies. Some list some oddly low compression ratios. I wonder if these are for people that intend to run a supercharger?
More cubes would allow me to retain the axle gearing as is.
I do not want to give up reliability and durability just to gain power. I know that as the stroke gets longer, the piston sometimes gets shorter. I don't want hockey pucks for pistons that wear out the rings in 40,000 miles. I'm at 358,000 with this stock engine. If long term durability is an issue with an increase in stroke then I'm sticking with what lasts.


I put almost 100k on a 434ci(4.03x4.25) 5.7 in my 08 300C, short block still looked good after we pulled the heads.

If you want to keep the "outside" looking stock , Intake Manifold and all except legal headers, your best bet is https://www.performanceinjectionequipment.com/ for the older heads , you will not find a better ported pre 09 head......these guys legitimately put out a 320/340cfm head, depending on how happy the checking bench is @28hg

Comp cams 268h sounds stock and I can tell you it'll pass PA's smoger test with a good 87 OCT tune.

OR

https://www.high-performance-engines.com/product-p/sp97.htm with PIE heads your Intake set of JBA Headers Cat4ward headers and Comp Cams 268H it'll make around 430-440FLy wheel HP ......... I know that combo can run 12.60s @ 108-110 in a 06 4X2 RCSB Ram 1500....with the truck intake with the timig cover cover changed over and the useing an 06 auto Intake that same truck ran a 12:45 and with a Mod man with a top made by Joe Ocone(OCP manifold guy ) it went 12.21@114 the runs were either at Island Dragway(NJ) or Maple Grove(PA) .......all runs were on an 89 tune with HP tuners.

Granted the out of pocket cost close to 7k and ATK will sell you the short block with the cam installed........as for running the MDS on the comp cam, it can and has been done , it'll will be down about 20hp/30ft from the 430/440hp #s from above the MDS lifters lose about .020 travel when you get above 5700/6000 rpms,

The ATK short blocks are well built and take a hard core beating well.


04 Ram 4x2 11.66@ 122 4750LBS ...phat pig Moves for fully loaded truck with NA 345ci Hemi
2020 1320 Challenger....stock daily driver.
Re: Stock rebuild with a few legal upgrades [Re: Taylor] #2943790
07/16/21 01:32 AM
07/16/21 01:32 AM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
Has anyone here had any experience with these guys?

https://www.powertrainproducts.net/...749779364&utm_content=All%20Products

They are out of Maryland....across the country!
Free shipping though. $660 core charge. I was hoping to keep this engine for a future classic car project but I suppose that there will be plenty of junkyard Hemi engines for awhile, right?

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2943974
07/16/21 03:10 PM
07/16/21 03:10 PM
Joined: Dec 2005
Posts: 9,654
Home
S
SRT6776 Offline
master
SRT6776  Offline
master
S

Joined: Dec 2005
Posts: 9,654
Home
Jasper does them too


Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2944242
07/17/21 11:35 AM
07/17/21 11:35 AM
Joined: Jan 2006
Posts: 1,399
Trumbauersville PA
ric3xrt Offline
pro stock
ric3xrt  Offline
pro stock

Joined: Jan 2006
Posts: 1,399
Trumbauersville PA
Originally Posted by Frankenduster
Has anyone here had any experience with these guys?

https://www.powertrainproducts.net/...749779364&utm_content=All%20Products

They are out of Maryland....across the country!
Free shipping though. $660 core charge. I was hoping to keep this engine for a future classic car project but I suppose that there will be plenty of junkyard Hemi engines for awhile, right?


03-08 they made close to 3 million 5.7 hemis so I hope so...LOL

As for Powertrain ,I've used a few of their GM 5.3s 3 of their 5.0 Coyotes(best price around) and 1 of their 6.1 Hemi(s) always did what they are supposed to do..


Truth has no agenda, but those with an agenda make their own truth.
Some of us are so open minded they only see their View



Re: Stock rebuild with a few legal upgrades [Re: SRT6776] #2944245
07/17/21 11:42 AM
07/17/21 11:42 AM
Joined: Jan 2006
Posts: 1,399
Trumbauersville PA
ric3xrt Offline
pro stock
ric3xrt  Offline
pro stock

Joined: Jan 2006
Posts: 1,399
Trumbauersville PA
Originally Posted by SRT6776
Jasper does them too



Not a fan of Jasper, got a Fud 4.6 from them that was junk out of the box, and fought with them over it,



But .........I don't know of many people who have had an issue with Jasper, my brother and another friend buy 3 to 6 Jasper Remans a year for their respective shops and between the two of them only 1 issue over the last 10 years. .


Truth has no agenda, but those with an agenda make their own truth.
Some of us are so open minded they only see their View



Re: Stock rebuild with a few legal upgrades [Re: ric3xrt] #2944383
07/17/21 07:38 PM
07/17/21 07:38 PM
Joined: Dec 2005
Posts: 9,654
Home
S
SRT6776 Offline
master
SRT6776  Offline
master
S

Joined: Dec 2005
Posts: 9,654
Home
They seem to perform the updates to a 5.7H so might be a good choice, I'd def ask around first though

Re: Stock rebuild with a few legal upgrades [Re: SRT6776] #2945440
07/21/21 12:59 AM
07/21/21 12:59 AM
Joined: Feb 2010
Posts: 17,474
Granite Bay
Frankenduster Offline OP
I Live Here
Frankenduster  Offline OP
I Live Here

Joined: Feb 2010
Posts: 17,474
Granite Bay
I was nervous to do it but I just returned from a 1700 mile round trip from Northern CA to Scottsdale AZ and back.
The 364,000 mile engine ran like new aside from burning a little oil. This makes me wonder if I can get by using a low mile replacement engine...?
I am also thinking that I could do a ring, bearing and gasket job on a low mile engine as a possibility.

Re: Stock rebuild with a few legal upgrades [Re: Frankenduster] #2946057
07/22/21 02:50 PM
07/22/21 02:50 PM
Joined: Mar 2005
Posts: 1,282
Michigan
K
Kiddart Offline
pro stock
Kiddart  Offline
pro stock
K

Joined: Mar 2005
Posts: 1,282
Michigan
I bet you can


Thank you
Kiddart
Page 2 of 3 1 2 3






Powered by UBB.threads™ PHP Forum Software 7.7.1