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Old 07-12-2010, 07:38 PM
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thats kind of what i was thinking. They might be telling him its doable knowing they'll be making some good money at it..

on another note. you are right, nothing is impossible, and im sure with enough time and money you would be able to get this thing running. but i think the guys are trying to give you a heads up and dont wanna see you get soaked.

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  #17 (permalink)  
Old 07-12-2010, 09:04 PM
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What I don't quite understand here is you guys are trying to say its suicide on an oem block. But people are running 200+ shots of no2, blowers, all that stuff on oem blocks. So if they are doing that then I'm not sure why a TT setup is taboo.
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Old 07-12-2010, 09:11 PM
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forcing that much air into that block, I think you would definatly need to upgrade your head bolts, I know on old mack trucks we used to torque the bolt, but the head of it off, and then weld it to the head solid. lol....to many guys were stretching the head bolts, it got kinda outta hand..hahaha
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Old 07-12-2010, 09:14 PM
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to everyone who says it wont work and don't do it, i say let him. its his money and he seems intent on doing it. im gona get out my popcorn and wath this one
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Old 07-12-2010, 09:24 PM
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I'm gonna do it reguardless. Also the internal pressure really won't be that high. If I'm dropping down the compression to 7:1 and let's say 8psi of boost really I'm only bringing the compression up to about 9-9.5:1. So 12 psi would be hitting around 10.5-11:1. From what I have been told 11-11.5:1 is max that you wanna run through an oem block. Honestly I think this will be safe build if I drop my boost down to 11psi. I'm still going for it though, even if I get no encouragment lol.
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Old 07-12-2010, 09:41 PM
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OK well just for fun here lets look at how the pros build a 15psi SBC:

http://www.bankspower.com/products/show/267/85

now the first thing is the custom dart block...hmmm maybe they are on to something, it can be done but ditch that block and start over.
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Old 07-12-2010, 10:04 PM
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*sighs* if you read I'm dropping my boost to around 11psi. Also they are running an 8.5:1 compression to start off with, whereas I'm starting off with 7:1. If I was planning on building this car for race only I would spend the 2+ grand on a new block, but I'm not going to be out every other day running the motor to it full potential. Atleast that was a link for help that I was asking for in the first place rather than getting slammed saying my build will never work. Thank you for that. I have faith in this even if others don't.
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Old 07-12-2010, 10:43 PM
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Well it appears I have to buy a new block anyways, I just got the motor fully disassembled and it looks like the number 5 cyl is cracked along with a rough patch of i dont know what that i couldnt even get to smooth out with a hone. Here is a pic, any opinions on what it could be? Also its kind of hard to see what looks like the crack Im talking about...
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Old 07-12-2010, 11:39 PM
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Ok scratch that crack issue. It was just dirt collecting on that "roughness". I think what I'm just going to end up doing is have the block remachined, and just leave it at a 355 put a decent set of heads on it, swap it out with the 350 in my truck, and go back to 4 cylinders.

So on the 355 just buy another cast crank, new rods and pistions, and that should hold up for just a daily driver truck right?
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Old 07-12-2010, 11:48 PM
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Quote:
Originally Posted by bipolar_camaro
I have no doubt that this block can handle it. When this motor was being bored 30 over it broke the machine shops hone twice. All I know about this block is its from the early 70's, 4 bolt main, and its a mexican block. Anyways Im still needing help on a parts list.

I thought your block was bullet proof?
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Old 07-12-2010, 11:52 PM
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Its not cracked, and that rough patch I think is from where it had a blown head gasket and the water/anfreeze just sat in there for the 2 years the motor sat and caused it to rust or whatever.
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Old 07-13-2010, 03:06 AM
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if you can get the block cleaned up (IF), you will need to have a nice align hone done to make sure you will not be spinning any more bearings.

I know of at least 3 twin turbo mexican mexican sbc's in the dallas area.
Not 1000hp, but in the 800-900 range. It is most definitely doable. Unless you are into reading, research, and testing, I would leave this to a professional to build your engine.

I would say get a 350 diesel block and start from there. A bunch of dirt track boys run them.

This is totally outta my league (ford freak here haha), but 1000hp is pretty much out of reach unless you have vast experience, or you have a heavy wallet.
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Old 07-13-2010, 03:12 AM
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Lol finally faith. Is there any way to get in contact with them to find out what their build list is? I'm in between right now, I'm not sure if I want to just stay at a 355 and drop it in my 89 pickup I just restored, or if I want to unload my bank account to build a beast.
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  #29 (permalink)  
Old 07-13-2010, 03:50 AM
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If you want a twin turbo small block pushing 1000hp's and got the cash contact Nelson Racing Engines. They'll sell you a 30,000 TT engine
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Old 07-13-2010, 04:03 AM
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That takes the fun out of "building my first muscle motor".
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