Engine & Internal Chat about beefing up your Blazer's engine insides here.

hot rodding a 4.3L

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Old Sep 10, 2006 | 03:42 AM
  #21  
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Default RE: hot rodding a 4.3L


ORIGINAL: Blazer SS


If you do put in your 350 think about strengthening your front suspension and your rear driveline, address the new handling issues, Many people say that if you have tbi you can do a direct swap but think of getting bigger injectors so you don't run lean.
The whole throttle body injection for a 4.3 is exactly the same as the one for a 5.7 with the only difference being with computer programming. You would need a chip. And before I spend money to hot rod a 4.3, I'll buy a 5.7. Something about hearing 8 cylinders.
 
Old Sep 10, 2006 | 04:18 AM
  #22  
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Default RE: hot rodding a 4.3L

aight well thx for the advice and ya the v8 has a 1 of a kind sound that no v6 could compare to.
seems like a lot of work for the 350 but i guarantee its giong to be worth it cause ill get all th3e babes!
ye yee
lol
aight well im a lil drunk so ya bye
 
Old Sep 11, 2006 | 05:42 PM
  #23  
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Default RE: hot rodding a 4.3L

I'm just curious ? How many people on this site have actually done a 350 swap? Not just talked about doing one in the future . There is a factory Blazer done with a LT1.

http:http://www..chevyhighperformance.com...rticles/48442/ . You should check this out.

The funny thing about it is that I have more HP. From my lowly 4.5 v6 vortec, Did anyone notice that I put 4.5 instead of 4.3 ? For a little over a grand and a half you can have your engine stroked. Great torque increase! To get the HP that I have in my Blazer right now, It would cost maybe 4 to 6 thousand for a built 350 crate motor alone. Not including instalation.

I plan on dropping my compresion even more and increasing my super charger to between 12-15 psi of boost, Still with the plastic intake. Relax everything is locked from underneath to prevent blow out. And they are so easy to replace anyway and that I do have a spare. I'm thinking that they can take 20lbs of boost without any serious problems. And if it doesn't OH Well, I guess I will have to replace it and change out a pulley. 30 minutes work.

One more thing , There is one more power adder that costs maybe 600$ Does wonders with a supercharger! Just hate the refills.

Bottom line I kept the v6, I can embarrass v8's , and I am having fun ! I hope that the rest of you are having just as much fun with your projects. The v6 can work!
 
Old Sep 11, 2006 | 08:13 PM
  #24  
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Default RE: hot rodding a 4.3L

oh i guarantee a v6 can do wonders but for wat i am looking for (nice driving daily driver that can smoke the tires on command) the 350 will be easier and cheaper. im not looking to get 400+ hp out of a 350, i would like around the 300 zone which would make my truck a beast, and yet still easily possible on a low budget.
 
Old Sep 11, 2006 | 09:07 PM
  #25  
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Default RE: hot rodding a 4.3L

Blazer SS, you still haven't answered a few of my questions... Here's the quote:
ORIGINAL: swartlkk

Have you dyno'd your truck? results? What does it run in the 1/4 mile? You make claims, now's time to back them up...
So.. I'll ask again... How much power are you putting down exactly? dyno? What do you run in the 1/4 mile?

I'll also take the opportunity to ask a few more since you seem to be getting on our nuts about things. What v8 powered vehicles are you embarassing? Were they stock or modified?

I'm not asking these questions to be a *****. Just trying to ascertain the validity of your comments. Anyone can make claims on the internet. I have a responsibility to keep the information listed on this forum accurate so that someone doesn't go out and copy someone else only to be disappointed.
 
Old Sep 11, 2006 | 09:36 PM
  #26  
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Default RE: hot rodding a 4.3L

Swart does have a great point that BlazerSS keeps avoiding....I would like to see pics of this vehicle along with time slips and dyno sheets. This should be easy since Blazer SS has nothing to hide.

[sm=admin.gif]
 
Old Sep 11, 2006 | 09:51 PM
  #27  
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Default RE: hot rodding a 4.3L

He has pictures (CLICK HERE), I'm not doubting that he has installed what he says he has installed, just starting to really want my questions answered and not dodged.
 
Old Sep 11, 2006 | 11:05 PM
  #28  
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Default RE: hot rodding a 4.3L

aye, believe me eyes have gazed upon those pics, before. What about timeslips and dynosheets?
 
Old Sep 11, 2006 | 11:28 PM
  #29  
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Default RE: hot rodding a 4.3L

Curious as to what crank shaft he used for the stroke?

I know on the 350 you use a 400 crank to stroke, what do you use on a 4.3L to stroke it? I wouldn't mind stroking a 4.3L V6. I am also a V6 kind of guy. But I do have a limited budget.
 
Old Sep 11, 2006 | 11:39 PM
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Default RE: hot rodding a 4.3L

Tim, you said stroke entirely too much in that thread! LOL
 



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