Need some help and guidance with building a new shortblock.
#1
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Well, yesterday I think I broke a ringland on #7. Not 100% sure till I pull the head, but I pulled the plug and the grounding strap is pressed against the electrode.
So now I need to rebuild. My thought is to do a stock cube, stock crank, forged piston/rod combo. I just want the motor to last, but I'm not looking make more power as I was perfectly happy with the power level I was at, I just want this to be a safe setup. As it is, I'm at the limits of the 60lb injectors, and I'm still on a 10-bolt, so I'm not looking to be running a number. I just want to not have to worry about popping the motor.
So does anyone have any suggestions or know of any places that'll put together a shortblock like this? I'd prefer it to be somewhat local to the Philadelphia area (within 2-4 hour drive).
Any help is appreciated. I don't even know what piston or rod combo is best.
Thanks guys.
So now I need to rebuild. My thought is to do a stock cube, stock crank, forged piston/rod combo. I just want the motor to last, but I'm not looking make more power as I was perfectly happy with the power level I was at, I just want this to be a safe setup. As it is, I'm at the limits of the 60lb injectors, and I'm still on a 10-bolt, so I'm not looking to be running a number. I just want to not have to worry about popping the motor.
So does anyone have any suggestions or know of any places that'll put together a shortblock like this? I'd prefer it to be somewhat local to the Philadelphia area (within 2-4 hour drive).
Any help is appreciated. I don't even know what piston or rod combo is best.
Thanks guys.
#2
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^^^ A_VAS has a 416 LS3 w/ a 24x reluctor ring. For what he is asking it would almost be the same as doing a forged 347, but this is a forged 416, be a great torque monster and you wouldn't need alot of boost.
Shoot me a PM if you want a phone #, he is kinda busy right now cause he just bought a new house and hasn't been on the forum too too much.
Shoot me a PM if you want a phone #, he is kinda busy right now cause he just bought a new house and hasn't been on the forum too too much.
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[QUOTE=The Alchemist;15842532]Ok, sounds good, but where and how much for the 370?
I'm not trying to make crazy horsepower, I just want it to hold together. The tune wasn't bad, I just think I pushed to motor beyond it's breaking point.[/QUOT
I think You can Build a Killer F/I Short block for under 4500 Bucks, LS2 blocks are cheap do it .030 over also rotating assemblies are a very good value if you look around...
I'm not trying to make crazy horsepower, I just want it to hold together. The tune wasn't bad, I just think I pushed to motor beyond it's breaking point.[/QUOT
I think You can Build a Killer F/I Short block for under 4500 Bucks, LS2 blocks are cheap do it .030 over also rotating assemblies are a very good value if you look around...
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I would do the 416 any day over a piece of iron hanging on the front of my car. You will feel that extra 100 pounds dragging the nose around corners. Usually its not the blocks that break its the piston and rods. And just one more thing since you are about maxing the 60lb injectors out. The 416 or the 370 will both need 80lbers. And the 416 will tune better with the 80lbers.
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yep bet the car loves race gas and how much does that car drive on the street? Just curious. I think he mentioned he wanted to keep the car fun and not launch the car drag racing.
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I would do the 416 any day over a piece of iron hanging on the front of my car. You will feel that extra 100 pounds dragging the nose around corners. Usually its not the blocks that break its the piston and rods. And just one more thing since you are about maxing the 60lb injectors out. The 416 or the 370 will both need 80lbers. And the 416 will tune better with the 80lbers.
Like I said, I'm not looking to make more power, the car is just a fun street car, so I don't even want to run smaller than an 18" wheel/tire combo, so traction is non-existant.
I will upgrade the injectors to 80s just to make sure I have the extra safety margin and have them flow tested, putting the highest flowing ones in the rear cylinders.
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I would look at TSP or Thompson motorsports. Thompson has some killer deals on shortblocks. You may want to look at building it from you block if its still ok. I found it alot cheaper to use the block I have, I had an oiling issue.
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Alchemist. I called Speed Inc the other day, knowing that I will be going through this too in the future even at 8lbs. I too wanna keep my stock cubes and will one day built another 6 speed car 370 with Unleashed's new oilless turbo or something similar. Anyways I asked him what parts would run to hold 800 rwhp since I will prob only end up seeing 7xx and 6xx by the time I max it out....and the total came out to $19xx with some good stuff.
Diamond Pistons Dished
Eagle Rods
Katech Bolts
Cleavite Mains and Bearings
Rings
etc etc.....Its not the best of the best, but it will hold beautifully. And if you can drop the motor yourself and just have your crank balanced and a key machined you will be fine. The main thing I will be needing is a good set of heads from either TF or AFR and they cost more than that. Now if you are going to have to pay labor to have it all done, then yeah your gunna be looking at around 2k id assume to have it all worked in. I hear that the fuel lines need to be swapped for braided ones at 700 as that near the bursting point. just my 0.02. thats what im going to do. and bob and procharger recommend diamond too. and that was a 9:5: compression too so you can run pump gas.
Diamond Pistons Dished
Eagle Rods
Katech Bolts
Cleavite Mains and Bearings
Rings
etc etc.....Its not the best of the best, but it will hold beautifully. And if you can drop the motor yourself and just have your crank balanced and a key machined you will be fine. The main thing I will be needing is a good set of heads from either TF or AFR and they cost more than that. Now if you are going to have to pay labor to have it all done, then yeah your gunna be looking at around 2k id assume to have it all worked in. I hear that the fuel lines need to be swapped for braided ones at 700 as that near the bursting point. just my 0.02. thats what im going to do. and bob and procharger recommend diamond too. and that was a 9:5: compression too so you can run pump gas.
![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
#18
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Thanks for the heads up.
I'm still weighing all my options, but leaning towards just having my stock block and crank reused with a set of forged pistons and rods with good hardware, specifically rod and main bolts and bearings.
Whatever I do will depend on what I find next weekend when I pull the head. I'm hoping for some luck and won't find a cracked block or damaged head.
One thing I did notice after it happened was oil pressure was fine, and the coolant stayed clean. So who knows, maybe I dodged a bullet.
I'm still weighing all my options, but leaning towards just having my stock block and crank reused with a set of forged pistons and rods with good hardware, specifically rod and main bolts and bearings.
Whatever I do will depend on what I find next weekend when I pull the head. I'm hoping for some luck and won't find a cracked block or damaged head.
One thing I did notice after it happened was oil pressure was fine, and the coolant stayed clean. So who knows, maybe I dodged a bullet.
Alchemist. I called Speed Inc the other day, knowing that I will be going through this too in the future even at 8lbs. I too wanna keep my stock cubes and will one day built another 6 speed car 370 with Unleashed's new oilless turbo or something similar. Anyways I asked him what parts would run to hold 800 rwhp since I will prob only end up seeing 7xx and 6xx by the time I max it out....and the total came out to $19xx with some good stuff.
Diamond Pistons Dished
Eagle Rods
Katech Bolts
Cleavite Mains and Bearings
Rings
etc etc.....Its not the best of the best, but it will hold beautifully. And if you can drop the motor yourself and just have your crank balanced and a key machined you will be fine. The main thing I will be needing is a good set of heads from either TF or AFR and they cost more than that. Now if you are going to have to pay labor to have it all done, then yeah your gunna be looking at around 2k id assume to have it all worked in. I hear that the fuel lines need to be swapped for braided ones at 700 as that near the bursting point. just my 0.02. thats what im going to do. and bob and procharger recommend diamond too. and that was a 9:5: compression too so you can run pump gas.![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
Diamond Pistons Dished
Eagle Rods
Katech Bolts
Cleavite Mains and Bearings
Rings
etc etc.....Its not the best of the best, but it will hold beautifully. And if you can drop the motor yourself and just have your crank balanced and a key machined you will be fine. The main thing I will be needing is a good set of heads from either TF or AFR and they cost more than that. Now if you are going to have to pay labor to have it all done, then yeah your gunna be looking at around 2k id assume to have it all worked in. I hear that the fuel lines need to be swapped for braided ones at 700 as that near the bursting point. just my 0.02. thats what im going to do. and bob and procharger recommend diamond too. and that was a 9:5: compression too so you can run pump gas.
![Chug! Chug! Chug!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_chug.gif)
#19
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^^^ A_VAS has a 416 LS3 w/ a 24x reluctor ring. For what he is asking it would almost be the same as doing a forged 347, but this is a forged 416, be a great torque monster and you wouldn't need alot of boost.
Shoot me a PM if you want a phone #, he is kinda busy right now cause he just bought a new house and hasn't been on the forum too too much.
Shoot me a PM if you want a phone #, he is kinda busy right now cause he just bought a new house and hasn't been on the forum too too much.
I wouldn't recommend going with TSP. Crappy customer service. They're nice to you when you're buying something but when they screw something up they aren't the type to own up to the mistake.
#20
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I got my shortblock assembled and shipped for 4000.
-6.0L iron block
-Compstar Rods
-Compstar Crank
-Custom made Diamond Pistons with moly coated side skirts
-ARP main studs
The shipping was from around Chicago to VA. You just have to find a good company that has fair pricing.
-6.0L iron block
-Compstar Rods
-Compstar Crank
-Custom made Diamond Pistons with moly coated side skirts
-ARP main studs
The shipping was from around Chicago to VA. You just have to find a good company that has fair pricing.