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HybridZ

preparing for a SBC swap


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Hey guys,

 

I'm planning on building up a SBC for my Z this winter and I'm trying to get it all planned out ahead of time before I dive into anything. I feel that I know a decent amount about engines, but I'm by no means an expert and this will be my first engine build, actually my first time really doing anything to any sort of engine. Yes I realize this is quite ambitious but if your gonna start somewhere why not start with something practical. I'm also taking an engines course in college right now so by the time I start the build I'll have some more knowledge.

 

Anyways, before I bore you all to death, I'll get to the point. In the end I'm interested in making between 300-350 hp, maybe more if I go with the 383 but definately keeping it under 400. That being said, my brother has a block and crank set up for a 383 that he got from his friend. He said I could have it for about $200, but I've been looking on craigslist for more complete motors so I wouldn't have to buy as many parts.

 

1. If a motor needs to be rebuilt, do I necessarily have to replace all the parts? Or can a motor just be put back together with the same parts?

 

2. Would it just be cheaper to start with my brothers 383 block and build that up than to start with some guys old engine that I'd need to take apart and rebuild completely?

 

I do understand that you don't want to go towards the cheap side on an engine build and if parts need to be replaced I will replace them. The thing I'm unsure about is what necessarily needs to be replaced.

 

I appreciate your input and for putting up with my somewhat noob-ish questions.

 

Thanks, Josh

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StrokinIT: You will get what you pay for. Strongly suggest buying a new 383 short block then adding good aluminum heads, performance camshaft and performance intake manifold. Then you would really have something and not go through the hassle of buying all the many individual new parts and make it relatively simple to assemble.
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So I just went on to summit racing to price out some parts.

 

What do you folks think about what I picked? Good stuff or should I be looking for something different?

 

 

Heads- http://www.summitracing.com/parts/EDL-60909/

Cam- http://www.summitracing.com/parts/CCA-CL12-242-2/

Intake- http://www.summitracing.com/parts/EDL-2101/

Carb- http://www.summitracing.com/parts/EDL-1406/

 

Thanks for the help,

Josh

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So I just went on to summit racing to price out some parts.

 

What do you folks think about what I picked? Good stuff or should I be looking for something different?

 

 

Heads- http://www.summitracing.com/parts/EDL-60909/

Cam- http://www.summitracing.com/parts/CCA-CL12-242-2/

Intake- http://www.summitracing.com/parts/EDL-2101/

Carb- http://www.summitracing.com/parts/EDL-1406/

 

Thanks for the help,

Josh

You are going to need a transmission also. And with that cam you will need an above stock stall. Dont forget fuel pump, distributor, gaskets, headers and exahust.

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I plan on keeping the engine build itself under $3,000. I also want to build it over my winter break, so basically during the month of January.

 

And I understand I'll need more parts than the parts I linked to before, but since those parts are generally the more important ones to get right to make the sort of power that your looking for that's why I asked for opinions on them.

 

I think the 600cfm carb might not be up to the task of making 350+ hp from a 383. Do you think a 750cfm will flow enough?

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