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Re: [GMCnet] new engines for the GMCs [message #316727 is a reply to message #316482] |
Thu, 27 April 2017 21:17 |
richshoop
Messages: 190 Registered: April 2017
Karma:
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I find these replacement engine ideas very interesting, but the nearer term problem for all of us is the transmission. What can be done to come up with a replacement? We are quickly running out of rebuild kits.
----- Original Message -----
From: "Mike Sadlon"
To: gmclist@list.gmcnet.org
Sent: Sunday, April 23, 2017 7:29:14 AM
Subject: Re: [GMCnet] new engines for the GMCs
First, This isn't about mileage or even cost. Anything that goes round and round will wear out.
My GMC burns about 1 quart of oil every 500 miles, and I am OK with that vs. the cost of a rebuild.
Second, the last 455 casting was done sometime in the 70's. When I helped out at my buddies engine shop, about 50% of the engines that came in for a
simple rebuild, took some kind of major component. That's why the top shops are quoting $7500 for a rebuild. It is not customer friendly to say $5000
and to then come back and say you need another $1500 because your block won't take a rebuild. The rarer the more money.
Third. The LS would be a perfect motor, if it would bolt up with just an adaptor(that are out there cheap), a custom oil pan and front mount(easily
fabricated). You could sell those parts for around $500 and be OK making them. So a $500 kit, $2500 late model low mileage junk yard engine,$400 wire
harness and $300 computer tune and your running.
I will make a kit to bolt up the LS to the 425 transmission. But It needs custom front mount, rear mount, oil pan, trans pan, and an adaptor between
the differenial and the trans. I am looking at $1800 to $2000 for those parts. And to fit our coaches, you are going to have to add 3 inches to the
height of the step near the transmission to make it work. And it is getting real close to the hatch. it may even need to be raised a little to clear
the truck intake.
So what are the other choices?
To me there are 2 that make sense.
First the more expensive. World Product sells and engine called the LS hybrid. It is small block Chevy based bottom end, set up to take LS cylinder
heads. Again, it is not cheap. The first quotes on the short block exceed $5500! With a fresh set of heads and all the other component, It will
probably be near $10,000 for complete engine ready to drop in. But you will get easily 450 HP and 500 torque.
As always speed costs.
The other option is GM sells a motor they call HT383. Google it. It has almost the exact horsepower and torque of our stock 455s. The front mount and
pan prototypes will be done soon. you will have to raise the hatch, and I will let everyone know how much soon. Jegs has the motor for $4500. It has
a 2 year 50,000 mile warrantee. Add a Fitech fuel injection and you would have a great motor for our coaches. Keep in mind all your front accessories
need to be changed. But GM does sell a kit with everything you need, brand new, for about $1000.
How much is brand new worth vs. 40 year old everything!
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new engines for the GMCs
By: Mike S on Thu, 20 April 2017 13:49
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Re: new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 13:55
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Re: new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 13:59
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Re: [GMCnet] new engines for the GMCs
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Re: [GMCnet] new engines for the GMCs
By: USAussie on Thu, 20 April 2017 17:37
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 14:09
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Re: [GMCnet] new engines for the GMCs
By: jimk on Thu, 20 April 2017 14:30
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Re: new engines for the GMCs
By: JohnL455 on Thu, 20 April 2017 14:32
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 14:50
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 15:00
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 15:03
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 15:10
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 15:16
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Re: [GMCnet] new engines for the GMCs
By: k2gkk on Thu, 20 April 2017 17:16
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 15:56
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Re: new engines for the GMCs
By: Harry on Thu, 20 April 2017 16:49
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 18:29
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 20:07
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Re: [GMCnet] new engines for the GMCs
By: USAussie on Thu, 20 April 2017 17:42
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 18:08
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 18:32
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 18:37
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 19:08
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 19:12
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Re: new engines for the GMCs
By: Mike S on Thu, 20 April 2017 19:15
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: Francois on Fri, 21 April 2017 00:35
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Re: new engines for the GMCs
By: Mike S on Sun, 23 April 2017 09:29
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Re: new engines for the GMCs
By: TR 1 on Mon, 24 April 2017 17:40
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Mon, 24 April 2017 08:42
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: Mike S on Mon, 24 April 2017 20:17
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Re: new engines for the GMCs
By: TR 1 on Tue, 25 April 2017 09:33
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: TR 1 on Mon, 01 May 2017 06:28
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Re: new engines for the GMCs
By: jknezek on Tue, 25 April 2017 12:49
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: TR 1 on Wed, 26 April 2017 21:14
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Re: [GMCnet] new engines for the GMCs
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Re: new engines for the GMCs
By: rcjordan on Thu, 27 April 2017 06:34
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