1998 Chevy Blazer engine swap 4.3 to 305 or 350 - Truck Forums at Truckin' Magazine

1998 Chevy Blazer engine swap 4.3 to 305 or 350

  
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1998 Chevy Blazer engine swap 4.3 to 305 or 350

 
walleye2009 walleye2009
New User | Posts: 2 | Joined: 08/09
Posted: 08/24/09
06:32 AM

what is involved and can a older motor be used for this. any and all info would be appretiated.Thank you  

 
esanchez esanchez
Administrator | Posts: 1595 | Joined: 07/06
Posted: 08/25/09
08:36 AM

If you're going to do a V8 swap, there's no reason not to get a 350. Externally, there's virtually no difference between that and the 305. Depending on where you live, swapping an older motor into a newer vehicle is technically illegal (such as California.) Probably the biggest issue you're going to run into is electronics compatability. If possible, try to find an engine as close to the same model year as your vehicle, as that will maximize your chances that the electronics will work. You may still need to get a new engine computer to make the engine run, but the other accessories should work correctly.  

 
walleye2009 walleye2009
New User | Posts: 2 | Joined: 08/09
Posted: 08/26/09
05:04 AM

Thanks for replying but I have decided to rebuild the 6cyl.  

 
01YukonRollin 01YukonRollin
Moderator | Posts: 289 | Joined: 04/07
Posted: 08/27/09
10:46 AM

I think that the 6cylinder can be a little torque monster.  Lets see something turbo'd out!  
-Cody

 
usarmyranger316 usarmyranger316
New User | Posts: 1 | Joined: 08/09
Posted: 08/27/09
02:47 PM

I put a 1974 350 with 440hp in a 95 s10 4x4 blazer it was not all that easy but it was fun. Now i'm looking to ro a full axel conversion and would lofe some feedback on the best axel to use and if i can leave my stock rear in and just change the front. I want to do a spring over in the rear and leaf springs in the front. any and all feedback will help  

 
tinkerman tinkerman
New User | Posts: 1 | Joined: 11/09
Posted: 11/02/09
06:55 AM

Hi i have kind of the same project going. I have 1995 jimmy with a 4.3 vortec and i want put a 1989 350 with the engine wiring harnest and computer. What i need to know is am i going to have problems with the fuel systems being that one is fuel injected and the other is throtle body and will my gauges work.  

 

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