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Would like your input on 4.3 vortec W rebuild

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Old Oct 1, 2008 | 09:19 AM
  #1  
dbinnc's Avatar
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Default Would like your input on 4.3 vortec W rebuild

it's a 92 blazer 4dr vortec W engine.
I would like to rebuild for performance, but don't want to spend more than maybe 2k. Somewhere between 250-300hp would be nice.
I am not a mechanic, but I can get by for most things. I will prolly have to get some of the things done by a 3rd party.
Would like your input on parts/products and tips. Links of best place to buy would be nice too.
If anyone is in the Triad area of NC and can help out. hit me up.

THanks,
D
 
Old Oct 2, 2008 | 06:30 PM
  #2  
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Default RE: Would like your input on 4.3 vortec W rebuild

My best suggestion, contact "Summit Racing" and talk to someone on there. I don't know if they still do it, but they helped me a LOT when I built my 1st motor. They suggested parts told me when 2 parts wouldn't "play nice" with each other.

The main thing that you'll have to look at is if you want to keep the factory ECU program or go with a custom chip. Also, if you have a CPI setup, and want to keep it that way, you'll be limited to everything but fuel delivery, which will make for some fun configuring.

If I was to attempt 200-300bhp at the flywheel with my Vortec "W" motor, I'd be getting a custom chip made for my setup. I'd go with a belt driven turbo, full custom exhaust starting with headers, lightweight pistons and rods, full crank balance, roller lifters and roller rocker arms, matching cam, and a full port matching. An electric fan set will also free up a little bit more HP.

Off the top of my head, without doing a good bit of research into it, that's pretty much where I'd start. Check out Summit Racing for parts. Check out "LMC Truck" for some parts as well.
 
Old Oct 3, 2008 | 10:41 PM
  #3  
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Default RE: Would like your input on 4.3 vortec W rebuild

For $2000 budget your not likely to get 250 hp out of a 4.3 just a stock rebuiltjasper engine is $1970.00 and thats like what190-210hp? I think you would probably be needing about $3000 to get an honest250-300 hp out of that motor.
 
Old Oct 11, 2008 | 12:59 PM
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Default RE: Would like your input on 4.3 vortec W rebuild

has anyone tried whipple charging a 4.3?
 
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