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4.3 Vortec swap


CEL3

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Alright so I've done research and I've seen it's been done. But I'm hearing different things back and forth and don't know who to believe. I've heard the steering hook up is hard due to the engine being in the way. And I've heard you have to cut the floor?

 

I don't want to hear the " you shouldn't do this put this in it. " or " that's a bad idea. " I haven't comitted yet, I just want to know. What problems do you face, do you have to cut the floors for a 5 speed manual. And what other mods do you have to do. I know there will be mods every swap has them but what will be the biggest problems, and what all is required to do the swap other than engine. I'll be carbureting it also

 

And what's better for the swap a Vortec or regular 4.3, I know the Vortec is better but are there any fitting differences? Thanks!

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Dude if you do this document and share. Lots of oics and don't give up in the middle please. I wanna see if it can be done and how hard it will be.

 

 

 

Personally I've been debating doing a vg30 4x4 from a pathfinder or frontier in one of my trucks and I know the motor swap has been done before but I don't have the skills to complete it myself. So seriously I wanna see it

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I haven't done many swaps, I'm only 19, but I done one in my 1967 Camaro me and my dad restored, we did a ls2. It was a JOB, but if I do I will so maybe I can help you with yours.

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Personally I've been debating doing a vg30 4x4 from a pathfinder or frontier in one of my trucks and I know the motor swap has been done before but I don't have the skills to complete it myself. So seriously I wanna see it

work parties. seems like you have the space. im gettin some help with my ka swap if i learn anything id be willing to spread my knowledge

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Not aware of anything about swapping in a 4.3 in particular. There's a bunch of stuff about other v6, mostly Buick.

 

Hobo- you're likely better of just doing a body swap onto a hardbody v6 frame for what you want.

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I've been pming some guys and I'm really considering the ka24, for ease. What's power like with these? I haven't checked specs. And any other info anyone has.

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I would stick with the l but I'm really wanting more power. I wanna change alot. The trucks screaming at 60 and I can't get out of my own way and I do alot of driving at that speed and it's not as enjoyable.

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  • 2 weeks later...

I've never really liked the sound of a 4.3l, they really have a odd tone to them, they are a small block Chevy 5.7l with two less cylinders, lots of the parts from a sbc will work on them

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I've never really liked the sound of a 4.3l, they really have a odd tone to them, they are a small block Chevy 5.7l with two less cylinders, lots of the parts from a sbc will work on them

 

And they will both require some kind of firewall/trans tunnel/floor mod. to work .

 

IMAG2097_zpsrxwbucpx.jpg

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I have a 76 with a 4.3  it is real easy just go to powrebyace.com  here is a picture of mine. If you have any questions just ask. I am not here often but I check my e mail. The truck runs 11.70 @ 110  1/4 mile   7.24 @ 92 in the 1/8 mile. It is a fairly easy swap I didnt have much trans tunnel work to do  I have a turbo 350 automatic.

IMG_91511024x768.jpg

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For the same amount of work you can fit the Vortec 5.7 or Vortec 6.2. Plus you get that V8 sound.

 

Weight is nearly the same as the heavy V6. The radiator space is the biggest swap difference, but there is still room.

 

Vortec 4.3: 425 pounds

LS1/LS2 V8: 405 pounds

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