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What it cost me to build the first ever running 392 G3 #1392478
02/23/13 05:03 PM
02/23/13 05:03 PM
Joined: Nov 2008
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MN
hemidup Offline OP
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hemidup  Offline OP
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I see many asking about the G3's lately and how much it cost's to build one.

Back in 05 there were only a handfull of engine builders playing around with them with no aftermarket parts available whatsoever. It was kinda like the race to space to get one up and running and I won. Maybe thats how I got nick named the Grandaddy of G3 Hemi's lol. The only thing we could do was to add stroke by offset grinding the crank shaft to a 3.80" stroke. If you worked with the 5.7 you would get 370 cubes and 392 from the 6.1.

My journey started with my 2005 4x4 Dodge Ram Rumble Bee pickup truck. She weighed in at 5275 and ran 16 flat off the showroom floor. I wanted to go faster (of course) so I added a blower and the truck went 13.80's which was good enough to put some stock Ford Lightng's on the trailer. Then I wanted to faster (of course) and decided to add more cubes to my 5.7, some head work and a factory 6.1 billet roller camshaft. I planned on stroking my 5.7 to a 6.1...Then Chuck Lofgren stepped into the picture and told me he had a spare factory 6.1 short block and camshaft he was willing to part with and I was jiffy on the spot and picked it up the next day. BTW, thanks again Chuck for the great deal.

Here's the break down of parts, most of which were one off at the time.

6.1 short block and roller billet camshaft...$2000...forged 6.1 crankshafts are $400 from the dealer, factory billet roller camshaft $85, aftermarket camshaft over $400. 6.1 blocks from INDY $1400 ??

Offset grinding and surface harden the crank... $200

Custom Ferrea valves...$800 Sent me valves with .308" valve stem dia which then I had to get custom bronze valve guides.

Custom ARP bolts and stud's...$660 But since I helped them out with their first set of proto type G3 stud's and bolts they were kind enough to ship me 2 sets for the same price. Thank you ARP.

Custom ATI damper...$600 + and even though we helped their engineer's with the G3 prototype...didn't get a break in price.

Hand ported 5.7 heads which I took off my original 5.7 motor...N/C, but had Glen Knowlton message them a bit and picked up a few more cfm...N/C and thank you Glenn Knowlton, may you RIP.

Eagle Honda rod journal rods...$400

Custom Ross piston's, pins and rings...$1200. Another disaster. I ordered a full skirt piston design, but the skirt hit the crank throw's. Order another set of longer connecting rod's figuring the skirt would clear the throw's, but I was wrong. The longer rod pushed the piston waaay out of the hole so I had to mill the top's of the pistons off which increased the compression I wanted and still had piston skirt to crank throw issues. I then had to remove material off the crank throw's and rebalance the rotating assemble.

Custom Cometic head gaskets...$200

Manley Nextek valve springs and titanium retainers...N/C thank you Manley for the valve springs and retainers in exchange for me helping you out with your G3 Hemi piston development. Othewise the Manley valve spring's go for $200 +

6.1 HV oil pump $?? can't remember the price, but I still use the 6.1 factory oil squirter's. If it wasn't for the oil squirter's I'd use a 5.7 oil pump.

Sorry for the long post and I'm sure I forgot a few things, but I'll be more than glad to answer any and all question's concerning a G3 Hemi build.


Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: hemidup] #1392479
02/23/13 06:07 PM
02/23/13 06:07 PM
Joined: Feb 2003
Posts: 3,998
GO BUCKS !!!!!!!
3
340RICK Offline
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Thanks for sharing Jerry

Here is a few examples from my 6.1/426 build in 2010/2011

899.00 new 6.1 block
8.16 new intake gaskets
103.02 timing chain
41.46 oil pan gasket windage tray
41.70 6.1 oil pump
110.28 shafts and intake rocker arms
110.28 shafts and exhaust rocker arms
258.48 hyd roller lifters
50.16 MLS mopar head gaskets
183.36 .....8 new 6.1 coil packs
189.34 3/8 manton push rods

Manley 4340 4.050 stroke
Manley H beams witha ARP 2000 bolts
Manley Pistons and rings bearings and balanced
2513.00

6.1 heads CNC ported, cut seats, back cut valves, cc chamber and mill .020 off deck to 71cc's 1.250 pac 1219 spring with moly locks reatainers seals.
1190.00

lsm cam
580.00

anyway not every nut and bolt but all the big stuff and you get the idea not much $$$$

Oh and the best part I bought every bit of this brand new from Dodge dealer

Re: What it cost me to build the first ever running 392 G3 [Re: 340RICK] #1392480
02/23/13 06:22 PM
02/23/13 06:22 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
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Posts: 20,640
in a cattle trailer down by th...
Thank you gentleman for sharing, that is real world information that we all can use. Again thank you and if you could post some HP or at least trap speeds and weight that would also be much appreciated.



"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: What it cost me to build the first ever running 392 G3 [Re: Guitar Jones] #1392481
02/23/13 06:42 PM
02/23/13 06:42 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
super stock
hemidup  Offline OP
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Quote:

Thank you gentleman for sharing, that is real world information that we all can use. Again thank you and if you could post some HP or at least trap speeds and weight that would also be much appreciated.






My current race weight was 5184 lbs before I gained 15 lbs (lol) and added Caltrac's, so I'm over the 5200 lb mark. My truck has a best of 1.48 60', 6.87 @ 98 and 11.03 @ 118. Yeah, the numbers are all screwed up, but it is what it is running the stock PCM and using an adjustable fuel pressure regulator for tuning a/f's.


Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: 340RICK] #1392482
02/23/13 08:39 PM
02/23/13 08:39 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
super stock
hemidup  Offline OP
super stock

Joined: Nov 2008
Posts: 833
MN
Quote:

Thanks for sharing Jerry

Here is a few examples from my 6.1/426 build in 2010/2011

899.00 new 6.1 block
8.16 new intake gaskets
103.02 timing chain
41.46 oil pan gasket windage tray
41.70 6.1 oil pump
110.28 shafts and intake rocker arms
110.28 shafts and exhaust rocker arms
258.48 hyd roller lifters
50.16 MLS mopar head gaskets
183.36 .....8 new 6.1 coil packs
189.34 3/8 manton push rods

Manley 4340 4.050 stroke
Manley H beams witha ARP 2000 bolts
Manley Pistons and rings bearings and balanced
2513.00

6.1 heads CNC ported, cut seats, back cut valves, cc chamber and mill .020 off deck to 71cc's 1.250 pac 1219 spring with moly locks reatainers seals.
1190.00

lsm cam
580.00

anyway not every nut and bolt but all the big stuff and you get the idea not much $$$$

Oh and the best part I bought every bit of this brand new from Dodge dealer




To help recoup my 392 build, I also sold my oringinal 5.7 bare block for $700 and the cast crank for $50.


Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: hemidup] #1392483
02/23/13 09:04 PM
02/23/13 09:04 PM
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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Guitar Jones Offline
Paddle faster! I hear banjo music!
Guitar Jones  Offline
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Quote:

Quote:

Thank you gentleman for sharing, that is real world information that we all can use. Again thank you and if you could post some HP or at least trap speeds and weight that would also be much appreciated.






My current race weight was 5184 lbs before I gained 15 lbs (lol) and added Caltrac's, so I'm over the 5200 lb mark. My truck has a best of 1.48 60', 6.87 @ 98 and 11.03 @ 118. Yeah, the numbers are all screwed up, but it is what it is running the stock PCM and using an adjustable fuel pressure regulator for tuning a/f's.




How much boost are you running and I assume that's a centrifugal SC?

Still for 5200 pounds that's impressive.


"Follow me the wise man said, but he walked behind"


'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon!
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: What it cost me to build the first ever running 392 G3 [Re: Guitar Jones] #1392484
02/23/13 09:10 PM
02/23/13 09:10 PM
Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger Offline
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Nebraska
I think the 6.4 is the way to go for a block but only problem is the funky front cam journal and I dont think there are any aftermarket off the shelf cams yet. http://www.mopar.com/part/RL086564AB?s=335847&i=1979588&b=dodge


Mopar to the bone!!!
Re: What it cost me to build the first ever running 392 G3 [Re: Guitar Jones] #1392485
02/23/13 09:26 PM
02/23/13 09:26 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
super stock
hemidup  Offline OP
super stock

Joined: Nov 2008
Posts: 833
MN
Quote:

Quote:

Quote:

Thank you gentleman for sharing, that is real world information that we all can use. Again thank you and if you could post some HP or at least trap speeds and weight that would also be much appreciated.






My current race weight was 5184 lbs before I gained 15 lbs (lol) and added Caltrac's, so I'm over the 5200 lb mark. My truck has a best of 1.48 60', 6.87 @ 98 and 11.03 @ 118. Yeah, the numbers are all screwed up, but it is what it is running the stock PCM and using an adjustable fuel pressure regulator for tuning a/f's.




How much boost are you running and I assume that's a centrifugal SC?

Still for 5200 pounds that's impressive.




Couldn't tell you for sure since my current boost gauge only reads to 14.7 psi. I'm too cheap to buy a 3 bar gauge lol.

I run a small Paxton 1500 and leave the line around 9 psi.

7600668-2012build009.jpg (195 downloads)

Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: hemidup] #1392486
02/23/13 10:29 PM
02/23/13 10:29 PM
Joined: Feb 2003
Posts: 3,998
GO BUCKS !!!!!!!
3
340RICK Offline
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GO BUCKS !!!!!!!
That really looks good in there Jerry

Re: What it cost me to build the first ever running 392 G3 [Re: hemidup] #1392487
02/24/13 11:09 AM
02/24/13 11:09 AM
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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Jerry I am going to put a link in the other "to avoid" GIII thread to save this info. Thanks, to all that contribute!


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: What it cost me to build the first ever running 392 G3 [Re: gregsdart] #1392488
02/24/13 11:17 AM
02/24/13 11:17 AM
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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Frostbitefalls MN (Rocky&Bullw...
Jerry, does the new 6.1 block come ready to assemble, or did you have to bore/machine it at all? It may be cost effective to just buy a new 6.1 Vs prepping an original 5.7?


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: What it cost me to build the first ever running 392 G3 [Re: gregsdart] #1392489
02/24/13 12:50 PM
02/24/13 12:50 PM
Joined: Feb 2003
Posts: 3,998
GO BUCKS !!!!!!!
3
340RICK Offline
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GO BUCKS !!!!!!!
I am not Jerry, but 6.1 block I bought came fully machined from dodge dealer.

Re: What it cost me to build the first ever running 392 G3 [Re: 340RICK] #1392490
02/24/13 01:30 PM
02/24/13 01:30 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Romeo MI
Whats the weight of a complete gen3... either the
injected form or carb form

Re: What it cost me to build the first ever running 392 G3 [Re: 340RICK] #1392491
02/24/13 03:06 PM
02/24/13 03:06 PM
Joined: Jan 2003
Posts: 9,996
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
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gregsdart  Offline
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Frostbitefalls MN (Rocky&Bullw...
Quote:

I am not Jerry, but 6.1 block I bought came fully machined from dodge dealer.



Thanks Rick. Is the 6.1 a direct replacement for a 5.7 with different pistons, or what else changes? I have an early 5.7 now, but have a good stroker crank and rods.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: What it cost me to build the first ever running 392 G3 [Re: gregsdart] #1392492
02/24/13 04:07 PM
02/24/13 04:07 PM
Joined: Jun 2005
Posts: 2,776
Ontario Canada
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MattW Offline
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Ontario Canada
Quote:

Quote:

I am not Jerry, but 6.1 block I bought came fully machined from dodge dealer.



Thanks Rick. Is the 6.1 a direct replacement for a 5.7 with different pistons, or what else changes? I have an early 5.7 now, but have a good stroker crank and rods.





Same stroke 3.58.
6.1 is forged.
Bores are different 3.92 for the 5.7 and 4.55 iirc for the 6.1. The 6.1 has floating piston pin.

Re: What it cost me to build the first ever running 392 G3 [Re: MR_P_BODY] #1392493
02/24/13 07:04 PM
02/24/13 07:04 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
super stock
hemidup  Offline OP
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Quote:

Whats the weight of a complete gen3... either the
injected form or carb form





Drag Pak engine weight without fluids. Now knock another 92 lbs off using an aluminum block. Giddy up

7601731-dragpak017.jpg (201 downloads)
Last edited by hemidup; 02/24/13 07:05 PM.

Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: MattW] #1392494
02/24/13 07:25 PM
02/24/13 07:25 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
super stock
hemidup  Offline OP
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Joined: Nov 2008
Posts: 833
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Quote:

Quote:

Quote:

I am not Jerry, but 6.1 block I bought came fully machined from dodge dealer.



Thanks Rick. Is the 6.1 a direct replacement for a 5.7 with different pistons, or what else changes? I have an early 5.7 now, but have a good stroker crank and rods.





Same stroke 3.58.
6.1 is forged.
Bores are different 3.92 for the 5.7 and 4.55 iirc for the 6.1. The 6.1 has floating piston pin.




The factory 5.7 has a 3.917 bore and the 6.1 has a 4.055".

I might add that with the early blocks, the quality was exceptional..you really didn't have to do anything to them if you could live with a .002" difference in deck height and maybe touch up the cylinders with a plateau finish hone depending on ring choice. With the later blocks I would highly recommend to align hone the main bearing housing.

7601762-67007.jpg (177 downloads)

Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: hemidup] #1392495
02/24/13 09:34 PM
02/24/13 09:34 PM
Joined: Jan 2008
Posts: 4,255
Canada
WO23Coronet Offline
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Canada
What do you consider early, the 03-08 Hemis, or is it even more specific than that (02-04 for example)?

Re: What it cost me to build the first ever running 392 G3 [Re: WO23Coronet] #1392496
02/24/13 09:49 PM
02/24/13 09:49 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
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hemidup  Offline OP
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Quote:

What do you consider early, the 03-08 Hemis, or is it even more specific than that (02-04 for example)?




The later the engine, the more core shift. History repeats itself. Still haven't seen a G3 Hemi block that needed sleeve's yet, but its only a matter of time.


Jerry Williams.
Re: What it cost me to build the first ever running 392 G3 [Re: 340RICK] #1392497
02/24/13 10:02 PM
02/24/13 10:02 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline OP
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hemidup  Offline OP
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Quote:

That really looks good in there Jerry




Next time we hook up at the same track, same day, please give me a one Mississippi, two Mississippi head start and I'll race you to the 1/8. With no head start... I'm leaving on the first yellow lol.


Jerry Williams.
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