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09-27-2017, 11:02 AM
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#1
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Name: v10to12v
Title: Rookie
Status: Not Here
Join Date: Oct 2016
Member`s Gallery
Posts: 10
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Another 12v in the garage...
So I picked up an intercooled 12v out of a first gen for dirt cheap. Cylinders have lots of life left in them, cyl5 has rust but I'm fairly certain it's from sitting, probably try a quick hone to verify I don't have to take the block to the machine shop.
It's doesn't have the VE pump or the lines (valve covers or push rods too) but otherwise complete. I'm thinking about ppumping it but I really like the VE simplicity and cost.
I'll take the head, cam, and crankshaft to the machine shop. Do I need to take the rods for balancing? And do I need to get new pistons if the current ones look really good? Obviously new rings will be installed...
I'd like to push 350hp but reliability is number 1. Going into a 2nd gen with a NV4500.
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09-27-2017, 11:10 AM
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#2
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Name: jasonc
Title: Too Much Time
Status:
Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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For 350hp balancing is a waist of money, also sending the crank and cam in isn't necessary either if the bearings still look good. I'd get the head machined flat and add o-rings and re ring the engine and reseal and call it a day, that's assuming all the bearings still look good.
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09-27-2017, 11:24 AM
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#3
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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For 350hp, I wouldn't even oring it.
Sent from my iPhone using Tapatalk Pro
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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09-27-2017, 11:31 AM
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#4
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,859
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Balancing is never a waste of money.
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09-27-2017, 11:36 AM
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#5
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Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
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Quote:
Originally Posted by Snedge
Balancing is never a waste of money.
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This.
__________________
Jacob, 97 rclb
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09-27-2017, 11:58 AM
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#6
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Name: 9724VF350
Title: Tractor Guy
Status: Not Here
Join Date: Mar 2010
Location: Northeast Ohio
Member`s Gallery
Posts: 2,784
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Get the block surfaced while you're at it.
__________________
97 F350 4X4 CC Dually 5spd 24V 913 S300/HT3B Ranch Hand.
Playtoy-Oliver 1655. 12V now , 13mm, S475
Wife's ride-03 Excursion 12V swap in the works.
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09-27-2017, 12:11 PM
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#7
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Name: jasonc
Title: Too Much Time
Status:
Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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If not a waste, unnecessary.
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09-27-2017, 12:18 PM
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#8
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Name: badbowtie
Title: custom engine daydreamer
Status: Not Here
Join Date: Apr 2008
Location: Plainfield IN
Member`s Gallery
Posts: 475
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Balanced engines run very nice. At 350 hp it is not necessary, neither are o rings. I would have the head and block machined flat.
Sent from my SAMSUNG-SM-G930A using Tapatalk
__________________
1996 3500 4x4 5spd
1991 D350 5spd
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09-27-2017, 12:32 PM
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#9
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Name: jasonc
Title: Too Much Time
Status:
Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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O-rings are cheap and good insurance, i dont know what yall are paying but our local machine shop is $300 to surface and install o-rings. Out of all the 12 valve trucks I've had over the years, used to buy and sell them on the side when they were cheap, the only thing I've ever had happen is a couple of head gaskets. And most were way over 200k miles and over 400hp.
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09-27-2017, 12:58 PM
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#10
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Name: zfaylor
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2010
Location: P-TOWN!, Indiana
Member`s Gallery
Posts: 5,024
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Quote:
Originally Posted by 9724VF350
Get the block surfaced while you're at it.
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THIS.
So many people blow through head gaskets and blame it on their boost, egts, etc.... Most of the time the block isn't true.
__________________
2015 half ton heavy chevy
81 Fairmont LS project
Many yard ornament projects...
North American Turbo
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09-27-2017, 02:53 PM
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#11
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Name: Snedge
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Sep 2006
Location: Western Pa.
Member`s Gallery
Posts: 18,859
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Quote:
Originally Posted by jasonc
If not a waste, unnecessary.
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I mean, if we are going to split hairs...
It's also unnecessary to add horsepower to a Diesel pickup. They run forever when left alone.
A balanced rotating assembly makes a huge difference at any power level and it's cheap.
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09-27-2017, 03:54 PM
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#12
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Name: DieselWrencher
Title: 6cyl Vette
Status: Not Here
Join Date: Dec 2006
Location: Mitchellville, Ia
Member`s Gallery
Posts: 2,886
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Quote:
Originally Posted by Snedge
I mean, if we are going to split hairs...
It's also unnecessary to add horsepower to a Diesel pickup. They run forever when left alone.
A balanced rotating assembly makes a huge difference at any power level and it's cheap.
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Anyone that says balancing a 12v is a waste of money must have not ever had one that was balanced other than out of the crate at Cummins. They are a heck of a lot smoother once they are balanced.
Is it a necessity, no. But if you're building one to keep and run for ever, the added cost will help ensure it lasts that for ever IMO.
__________________
1968 Corvette 12v Cummins Compounds 47RH
1976 K30 CC SWB 12v 47RH
2000 Excursion VE 24v 47RH 4x4
1972 K30 Longhorn P-Pumped 24v 47RH Compounds
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09-27-2017, 04:01 PM
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#13
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Name: v10to12v
Title: Rookie
Status: Not Here
Join Date: Oct 2016
Member`s Gallery
Posts: 10
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Thanks for the input.
Pistons look great- Any reason why I should replace them?
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09-27-2017, 05:56 PM
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#14
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Name: jasonc
Title: Too Much Time
Status:
Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,412
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Will just a ball hone clean out the rusted cylinder? Yes the pistons will be fine. How do the rod and main bearings look?
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09-27-2017, 06:21 PM
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#15
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Name: sootie
Title: .....like a BAWSS
Status:
Here
Join Date: Jan 2013
Member`s Gallery
Posts: 866
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Give the cylinder a good couple days soak in diesel fuel. I bet most of the scale rust will be gone and you can see the extent of the damage.
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10-01-2017, 10:38 AM
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#16
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Name: 1972RedNeck
Title: Green Behind the Ears
Status: Not Here
Join Date: Sep 2014
Location: Townsend, MT
Member`s Gallery
Posts: 93
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Quote:
Originally Posted by v10to12v
Thanks for the input.
Pistons look great- Any reason why I should replace them?
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Does it have 145* or 155* pistons?
__________________
1990 F350 4X4, Sterling 10.25, Dana 60, E4OD
4BTA, HX30W/H1C Compounds, 5X16 Injectors
Quote:
Originally Posted by longhorn859
Assemble, floor it.
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10-01-2017, 10:57 PM
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#17
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Name: j.fondler
Title: Slow Learner
Status: Not Here
Join Date: Nov 2016
Location: SD/TX
Member`s Gallery
Posts: 560
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Quote:
Originally Posted by 1972RedNeck
Does it have 145* or 155* pistons?
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it does have an intercooled t-stat housing so i'm assuming 145*
__________________
51 F5 - 93 w250 chassis - VE/47rh/np205
67 d100 - 89 d350 srw chassis - VE/a518
93 w250 - VE/47rh/NP205 - BAJA!!!!
12 3500 - studZ, deleteZ, tuneZ
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10-03-2017, 07:35 PM
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#18
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Name: White_pearl12
Title: Rookie
Status: Not Here
Join Date: Jun 2017
Member`s Gallery
Posts: 5
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So many people blow through head gaskets and blame it on their boost, egts, etc.... Most of the time the block isn't true.[/QUOTE]
^^Yes this is true have seen it too often
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