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  #31 (permalink)  
Old 12-07-2012, 11:04 PM
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Quote:
Originally Posted by ChadGresham View Post
I'm looking at a 98 s10 ss, because I like 4.3 liters, and I'm wondering what the top speed possible is for these? Vin code w. I plan on open exhaust, cold air intake, throttle plate mod, and a programmer (hypertech). I know that particular programmer has a setting for 128 mph but will the motor actually do that with the mods listed?
A stock 4.3L V6 in a S-10 is going to be very hard pressed to run 128 mph.

My stock '96 Sierra 4.3L V6 p-u w/cold air and a 3" exhaust ran 110 w/o computer limiter. To add 18 mph on top of that takes a lot more HP than it might first appear because wind resistance more than anything.

A page on the V6 is here. Prolly nothing there you don't already know.

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  #32 (permalink)  
Old 12-08-2012, 03:49 AM
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Thank you 1gary, at least you appreciate my enthusiasm for cars and going fast. Modifying trucks is really my only hobby besides fishing. Don't care for sports or music, just cars and speed. Came here to be taught not bashed, but since you responded I know there is at least one sensible person on this forum. Keep up the positive attitude!
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  #33 (permalink)  
Old 12-08-2012, 08:55 AM
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maybe the O P should read the threads about that little turbo camaro with a V-6?
One of my parts suppliers built a N.A. 4.3,their biggest problem was getting any flow from the heads,everything else is like building a 350 minus 2 holes in the block. They made a little over 300 horses.
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  #34 (permalink)  
Old 12-08-2012, 12:42 PM
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Yeah hcomton It's an s10 SS, two wheel drive with a posi rear end. No 4x4, no big tires. 235 55 r16s
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  #35 (permalink)  
Old 12-08-2012, 12:54 PM
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I do not think it has a thing to do w/"hating" anything. Most guys are budget limited, so the cheapest way to make good power is, yep, the SBC 350. That's not to say the 4.3L V6 cannot be made to run good. It IS to say the cost/HP is not favorable when compared to a SBC.

One problem is the availability of high performance parts. The heads used in NASCAR GN racing are too large for most street engines when you can find them. And the evenfire stock cast crankshaft is inherently weak. Finding and paying for an odd fire crank ain't easy, either.

Now, you can use a turbo and make decent power, cast crank and all. But those are not cheap builds. And if the 4.3L V6 was all that and a bag of chips, don't you think there would be more of them being built? And don't you think the aftermarket would be all over them like white on rice? But their not. Doesn't that tell you anything?

OT- I don't understand guys who ask a question then piss and moan because everyone isn't all on board w/their ideas. You ask a question and you get answers- don't like them? Fine, but don't kill the messenger. Instead sort through the info and make your decisions based on whatever info you choose to believe.
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  #36 (permalink)  
Old 12-08-2012, 02:03 PM
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Quote:
Originally Posted by cobalt327 View Post
I do not think it has a thing to do w/"hating"

OT- I don't understand guys who ask a question then piss and moan because everyone isn't all on board w/their ideas. You ask a question and you get answers- don't like them? Fine, but don't kill the messenger. Instead sort through the info and make your decisions based on whatever info you choose to believe.
Cobalt that's a great incite to some of these guys! and you hit the nail on the head(the computers the NAIL )

I was going to come on and try to help but read some of this and decided the hell with it! Every one has different suggestions but to ridicule each other because one doesn't match another is ridiculous, and for a 19 year old boy to do the ridiculing when a very knowledgeable man gives a recommendation is assinine

Jester
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  #37 (permalink)  
Old 12-08-2012, 02:21 PM
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It sure would seem to me that a response given- even if it doesn't agree w/some preconceived notion- should be appreciated for what it is: an honest opinion given by someone who took the time to answer a post in the first place.

I think 128 mph is not gonna happen, stock w/a chip and cold air- even if it was on the ground, lowering-wise. Others think it will. But I doubt anyone here would argue building a V6 is cost effective.

Now, if this is a matter of "I'm doing it 'just because'...", then so be it. Go in good health.

It sounds to me like the OP doesn't even own the truck, so it's really a moot point for the most part. But there are S-10 forums that I'm sure would be better able to answer the question about top speed. I just wonder where a top speed run could be made, legally and safely- it will take at least a minute, or more, of pedal to the metal to reach top speed. That eats up a lot of asphalt in a hurry!
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  #38 (permalink)  
Old 12-08-2012, 02:39 PM
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The marine version is diffidently a source for high performance parts where the 4.3's are widely used.The later yrs a marine intake is a upgrade as a example.
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  #39 (permalink)  
Old 12-08-2012, 03:08 PM
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The Buick Grand national is a 3.8 V6.

Spend some serious cash will get you Brodix 4.3 V6 heads in two different intake runner sizes.

PBM Performance Products :: Online Store

TBI CHIPS
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  #40 (permalink)  
Old 12-08-2012, 03:27 PM
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The aftermarket support for the 4.3 is not good. There are cams, intake and some exhaust. No heads unless you count 18 degree from gmpp or other high dollar heads if their still available (3800 rpm and up power band), no cranks. This has all been hashed over previously- do a search. DV has as much experience w/the 4.3 as anyone on this board. Ask him what he would use to go fast on a budget, naturally aspirated. If he says a 4.3L V6, then there you go.

If all the OP wants to do is run a number, in this case 128 mph- he might be able to do it w/production Vortec heads and some porting along w/a cam. But if he wants to get a better return on his money, bite the bullet and do the V8 swap.

You make it sound like $1500 for a swap puts the idea totally out of reach. It's MY opinion that it's the best $1500 he could ever spend if he's really serious about going fast. If all he's trying to do is get some kind of bragging rights that he can go 120-plus then, again, so be it. But doing a swap opens up an almost unlimited amount of cheaper hp than you will ever get from a 4.3. EVER.

I don't know how or who builds your SBC 350s that they make only 180 hp, but stick around and listen- you will surely learn how to make a hp/ci on nearly the same money it takes for a stock rebuild.

I currently own two 4.3s, so it's not like I haven't looked into them.

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  #41 (permalink)  
Old 12-08-2012, 03:38 PM
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Perhaps entertainment value only:

Making Big Horsepower With A 4.3L Chevy V-6 - Hot Rod Magazine
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  #42 (permalink)  
Old 12-08-2012, 03:43 PM
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Quote:
Originally Posted by cobalt327 View Post
The aftermarket support for the 4.3 is not good. There are cams, intake and some exhaust. No heads unless you count 18 degree, no cranks. This has all been hashed over previously- do a search. DV has as much experience w/the 4.3 as anyone on this board. Ask him.

If all the OP wants to do is run a number, in this case 128 mph- he might be able to do it w/production Vortec heads and some porting along w/a cam. But if he wants to get a better return on his money, bite the bullet and do the V8 swap.

You make it sound like $1500 for a swap puts the idea totally out of reach. It's MY opinion that it's the best $1500 he could ever spend if he's really serious about going fast. If all he's trying to do is get some kind of bragging righr=ts that he can go 120-plus then, again, so be it. But doing a swap opens up an almost unlimited amount of cheaper hp than you will ever get from a 4.3. EVER.

I don't know how or who builds your SBC 350s that they make only 180 hp, but stick around and listen- you will surely learn how to make a hp/ci on nearly the same money it takes for a stock rebuild.

90 V6 Cylinder Heads/23
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  #43 (permalink)  
Old 12-08-2012, 03:51 PM
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Look at the power band- 3800-4000 rpm- these are not what I would consider street heads. For the same money you can make a lot more power from a SBC. What I WILL say about the heads is they will make more power than the crank is gonna like for very long. Or the rods, for that matter. And lets not forget the production block is 2-bolt.
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  #44 (permalink)  
Old 12-08-2012, 03:54 PM
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And aren't YOU the guy who said all the car mags are funny papers and cannot be trusted, etc. So what do you do but use a car rag as your "argument". LOLOL
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  #45 (permalink)  
Old 12-08-2012, 03:58 PM
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Chevy V6 229,262,4.3 v-6 Engine Info & Performance
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