allenrayn Posted February 18, 2004 Share Posted February 18, 2004 Hey, Anyone heard of droping a chevy 4.3L V6 engine in a Z? I am thinking about doing it. I figure it will still have more power than stock, and it will get better gas miliage than a V8. Tell me what you think. Allen[/img] Quote Link to comment Share on other sites More sharing options...
David K Posted February 18, 2004 Share Posted February 18, 2004 Ive been thinking about how nice a GM 3.8 would be. I just got a Pontiac Transport minivan a few weeks ago. The engine has balls, even for that big minivan with people in it. V6, 3.8, coil packs, i have high expectations of this engine if it were to be put in a light Z car! Quote Link to comment Share on other sites More sharing options...
Hitman47 Posted February 19, 2004 Share Posted February 19, 2004 Thats a great idea i have actually thought of for a while, a vortec 4.3l puts out alot of power and you can put a 3.8l bonniville supercharger on it with a little modification, my mom has a 3.8l ssei bonniville and its a boat but it hauls, i mean kicks you back in the seat halls, they claimed 240hp but with a little head work and supercharger work those engines get to 320 hp no prob. I have heard of a 4.3l with the 3.8l blower and they said the chevy s-10 had 333 hp to the ground. the best part about that blower is its incredible cheap, and readily avalible. I think the 4.3l vortec has 260 hp stock. just my thoughs Chad Quote Link to comment Share on other sites More sharing options...
80LS1T Posted February 19, 2004 Share Posted February 19, 2004 If the seach function was working you could find some info on this but not too much. I know someone has done the 4.3L swap. I cant remeber if I saw it on here or on ebay though? It was an extremly clean swap and it set the engine back pretty far which is good for weight distribution. I also agree that the 4.3L with a supercharger would a hell of a swap! I even thought about it myself! Guy Quote Link to comment Share on other sites More sharing options...
Heavy Z Posted February 19, 2004 Share Posted February 19, 2004 The 4.3/paxton sc route was done a few years back - I want to say it was SuperDan but I may be wrong. Pictures are out there, somewhere. Quote Link to comment Share on other sites More sharing options...
allenrayn Posted February 19, 2004 Author Share Posted February 19, 2004 I actually already took a 4.3L of of a s-10. I put a edelbrock intake manifold on it and am hoping to put some nice headers on too. I am interested in that 3.8l blower. If it's not too expensive. Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted February 19, 2004 Share Posted February 19, 2004 The 4.3/paxton sc route was done a few years back - I want to say it was SuperDan but I may be wrong. Pictures are out there, somewhere. I believe that was John Scott in Colorado. Quote Link to comment Share on other sites More sharing options...
wigenOut-S30 Posted February 19, 2004 Share Posted February 19, 2004 There is a fiero in town here that has a 4.3 ltr with a hugh turbo on it. He is running in the 9s I believe. Lifts the front tires off the ground when he launches. Pretty awsome. Quote Link to comment Share on other sites More sharing options...
orklc Posted February 19, 2004 Share Posted February 19, 2004 I saw Mitsubishi Colt drive to Orlando Speed World with a pair of slicks and a streetable 4.3 Chevy power plant with a simple single turbo blowing through a Holley 600 and a 350 automatic transmision and posting low 10 seconds ET's all night long. The driver indicated he was running 8-10 LBS. of boost depending on track conditions and that his best ET so far was 10.1. It is certanly a set up that could work reliably. Of course a Colt is very light and it has a full leaf spring rear end but I think there is potential for a light Z. Quote Link to comment Share on other sites More sharing options...
Tim240z Posted February 19, 2004 Share Posted February 19, 2004 Nice thing is that TunerCat supports this motor, so programming is not a problem!! Quote Link to comment Share on other sites More sharing options...
David K Posted February 19, 2004 Share Posted February 19, 2004 Nice thing is that TunerCat supports this motor, so programming is not a problem!! which one? the 3.8, 4.3, or both? Quote Link to comment Share on other sites More sharing options...
Tim240z Posted February 19, 2004 Share Posted February 19, 2004 Either: http://www.tunercat.com/tnr_desc/ecm_sup.html Quote Link to comment Share on other sites More sharing options...
Guest 4.3L 280z Posted February 19, 2004 Share Posted February 19, 2004 I did a search on this a while back and if I remember right all the jtr stuff is used and all you need is settback plates. Someone on here had some and he did a v8 conversion and gave them away. I decided I wanted to sc my L28 but after I got my car finished my oil pump went out of was clogged and my cam locked up. Now I'm doing a v8 or possibly a 4.3 conversion. Quote Link to comment Share on other sites More sharing options...
ULISES Posted February 20, 2004 Share Posted February 20, 2004 Hey, I'm a big fan of the Syclone/Typhoon Trucks. Well There is a 4.3 from a Syclone for sale at sy/ty.net. I think they put out 280hp and 350lbs of torque. Now that would be a nice engine on a Z. Quote Link to comment Share on other sites More sharing options...
Guest Surreal Reality Posted February 20, 2004 Share Posted February 20, 2004 Does anyone know where I can find more info on putting the 3.8l supercharger (eaton m90?) onto a 4.3l? I'm going with a small block in my Z but my daily driver 91 gmc p/u has a 4.3 and a little extra help never hurt! Thanks Quote Link to comment Share on other sites More sharing options...
280z-racer Posted February 20, 2004 Share Posted February 20, 2004 the 4.3 is rated at 190hp for the trucks. it is nothing more than a 305 bwith the back cylinders chopped off. also the supercharger for the bonneville runs 1609.35$$ GM number 12480245. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.