RE: hot rodding a 4.3L
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RE: hot rodding a 4.3L - 9/10/2006 1:42:28 AM
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1996BZR
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quote:
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.
_____________________________
1996 Blazer 4-door 2WD 572 V8
(just kidding, it's a 4.3 V6)
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RE: hot rodding a 4.3L - 9/10/2006 2:18:06 AM
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mojoman13
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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
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RE: hot rodding a 4.3L - 9/11/2006 3:42:23 PM
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Blazer SS
Posts: 32
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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:www..chevyhighperformance.com/techarticles/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!
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RE: hot rodding a 4.3L - 9/11/2006 6:13:11 PM
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mojoman13
Posts: 221
Joined: 8/21/2006
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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.
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RE: hot rodding a 4.3L - 9/11/2006 7:07:08 PM
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swartlkk
Posts: 14528
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From: Waterloo, NY
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Blazer SS, you still haven't answered a few of my questions... Here's the quote:
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 prick. 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.
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Kyle-
04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help
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RE: hot rodding a 4.3L - 9/11/2006 7:36:16 PM
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1996BZR
Posts: 421
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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.
_____________________________
1996 Blazer 4-door 2WD 572 V8
(just kidding, it's a 4.3 V6)
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RE: hot rodding a 4.3L - 9/11/2006 7:51:06 PM
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swartlkk
Posts: 14528
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From: Waterloo, NY
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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.
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Kyle-
04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help
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RE: hot rodding a 4.3L - 9/11/2006 9:05:45 PM
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1996BZR
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aye, believe me eyes have gazed upon those pics, before. What about timeslips and dynosheets?
_____________________________
1996 Blazer 4-door 2WD 572 V8
(just kidding, it's a 4.3 V6)
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RE: hot rodding a 4.3L - 9/11/2006 9:28:35 PM
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Hanr3
Wheels & Tire Moderator
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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.
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: hot rodding a 4.3L - 9/11/2006 9:54:55 PM
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Hanr3
Wheels & Tire Moderator
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Ya, think. Lol
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: hot rodding a 4.3L - 9/12/2006 3:22:11 PM
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mojoman13
Posts: 221
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ya man ive heard of other ppl thinking of doing the 350 swap but i am completely serious and commited to doing this.
ive got my mind set, and i guarantee that it is going to be done. and about that guy with the v6 of course he'll be able to beat some v8's with nitrous and the supercharger n crap. but like seriously if you put that much money into a v8 it would smoke his v6 time and time again. so wat i am saying is that ya it would be fast, but a v8 with the same stuff done would be faster.
< Message edited by mojoman13 -- 9/12/2006 3:23:06 PM >
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RE: hot rodding a 4.3L - 9/13/2006 8:37:16 AM
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Blazer SS
Posts: 32
Joined: 6/16/2005
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Sorry if I seem a little passionate about the v6. But I have listed my HP on this site , I just havn't put in my dyno sheets, The problem that I have, is by the time that I post something , I have changed things maybe twice. That is why there are so many different pictures of the dash and the engines.
I can't go by my last session because I found out that I had a almost completely blocked fuel line! Damn plastic fuel lines above the fuel filter! I have since replaced the lines with braid, My last session was about 380 HP at the rear wheels and that was with the fuel blockage. Disapointing!! I havn't did a new dyno since replacing the lines and adding the 36% but it is coming and I will make sure that it is video'd and posted.
What I am trying to get accross is , that if you want a 350 , get a 350, if you want to keep the 6 keep it.
I might have posted a lot of information on another forum, same sign in name , but after I post this I will try to find all of the information and compile it into one post, everything that has worked and didn't and what you need to get as a kit in order for things to work as expected (mods). Just buying and doing one mod will not give you what you were expecting, but taking that same mod and adding another will make it work.
Again I apoligize if I came off on the wrong foot.
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RE: hot rodding a 4.3L - 9/13/2006 8:53:25 AM
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Blazer SS
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I forgot to add , that if you do keep the v6 you can do things in steps and still drive your Blazer to work every morning. The longest that my Blazer was up on blocks was only one week. And as I always keep saying if you want the eisiest and best mod to do first . Spend 90$ and get some 1.6 roller tip rockers direct replacment , less than a hour of work sets you up for so many of the other mods, like restrictor removal, air intake, exhaust, free flow cat, and so on.
The pics that are posted are really old, just an example , the traction bars that you see are no longer angling down , they are now straight. so much has changed to the engine compartment, I think that I will wait a little while to post any new ones. I think this project is about at an end. I thought of donating my Blazer a while ago and working only on my 350 project, But I love the Blazer and I realized that I can't let it go. If you think about it what else realy comes close? Look at all of the 1st genarations still on the road! I know everybody and their mother now offer their own SUV's . Blazers still have a following!!
< Message edited by Blazer SS -- 9/13/2006 9:10:55 AM >
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RE: hot rodding a 4.3L - 9/14/2006 8:01:28 AM
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Blazer SS
Posts: 32
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On the stroke question .
355 from 348. H beams.
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RE: hot rodding a 4.3L - 9/14/2006 11:45:29 PM
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Hanr3
Wheels & Tire Moderator
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Could you elaborate a little more. I dont understand what that means.
Thanks!
_____________________________
"Some people spend an entire lifetime wondering if they made a difference.
The Marines don't have that problem."
-President Ronald Reagan
'87 S10-Blazer - SOLD
'93 S10-Blazer 4x4x4 - Sons DD, engine swap is done.
'00 S10-Blazer 4x4x4 - My
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RE: hot rodding a 4.3L - 9/15/2006 12:06:46 AM
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1996BZR
Posts: 421
Joined: 3/5/2006
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1.6 roller rockers are only $90? Where did you find them, I think I will get some, if I don't already have 'em (different motor already has roller rockers, just don't know about 1.6 or not)
_____________________________
1996 Blazer 4-door 2WD 572 V8
(just kidding, it's a 4.3 V6)
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RE: hot rodding a 4.3L - 9/15/2006 6:32:29 AM
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swartlkk
Posts: 14528
Joined: 5/1/2005
From: Waterloo, NY
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quote:
ORIGINAL: Blazer SS
On the stroke question .
355 from 348. H beams.
Last I knew... displacement could only be increased by two means... By 'H beams', I think you mean that you changed the rods... 3.48" is the standard stroke... So you increased the stroke by 0.07" by rod change alone?
< Message edited by swartlkk -- 9/15/2006 2:28:53 PM >
_____________________________
Kyle-
04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help
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RE: hot rodding a 4.3L - 9/15/2006 2:14:06 PM
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Blazer SS
Posts: 32
Joined: 6/16/2005
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Seems that I left out a lot of information on the stroker thing. First the stroker kit was a custom supercharged build. The kit listed .355 as the stroke of the kit ,but the kit was stroked to the max that would be good for a supercharger. The real stroke is actually more that the .355, The stroke was obtained with the 5.7 Hbeams with v8 crank size journals , which is actually smaller than the journals that are used on the v6, the journals were then machined to get the desired stroke, the pistons were custom made to move the pin to the desired range.
First I needed to give them the measured volume of my combustion chambers and they took it from there. Just A little information , the posted size of your chambers are way off, Measure for yourself before you even think of replacing your pistons. There is a whole lot of room in our v6 blocks ( clearence ). The more that you learn about the v6 , the more you will grow to love it.
Check ebay! there is a wealth of parts on it , and 1.6 roller tips will fit. we have more than enough room from the piston to the valves, the 1.6's wake up that factory cam by making it theoreticly bigger. the factory cam is actually realy realy good. But if you go supercharged or nitrous it has to go!
< Message edited by Blazer SS -- 9/15/2006 2:19:47 PM >
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