1996 silverado to 2003 4.3 engine swap

[Ian Des]

Just now, Ian Des said:

Yeah all sensors plugs are all the same on engine I think a bell housing swap and one of the kits with dished flex plate longer bolts and. Torque converter adapter starter from 03 would definitely get it going might have to switch intake too since fuel injection might be different. Do you think that would work

Every thing you read is on how to bolt old tranny on ls motor. Since new 4.3 shares same tranny I really think this would work or am I missing something 

 

[Ian Des]

12 minutes ago, Ian Des said:

Every thing you read is on how to bolt old tranny on ls motor. Since new 4.3 shares same tranny I really think this would work or am I missing something 

 

 I was thinking something like this. What do you think on this negative nacy

[davester]

I would just suggest making sure the sensors are the same part number between the two engines, not just that they have the same plug.

[Ian Des]

33 minutes ago, davester said:

I would just suggest making sure the sensors are the same part number between the two engines, not just that they have the same plug.

Did you think the the adapter issue would work to get the trans bolted up what are you thinking bell housing and the cock ring dished fly wheel and the torque converter adapter and bolts. Does that sound right mr davester as for the sensors I got that man that is minor stuff as I noted before I have researched alot the only difference in engine is fuel injection in intake swap back to the old one no prob use the new one just has updated injectors no problem the big thing is the trans to new 4.3 issue but I see it as the same as the 5.3 to older trans right

[Ian Des]

On 1/28/2020 at 7:13 PM, Ian Des said:

Did you think the the adapter issue would work to get the trans bolted up what are you thinking bell housing and the cock ring dished fly wheel and the torque converter adapter and bolts. Does that sound right mr davester as for the sensors I got that man that is minor stuff as I noted before I have researched alot the only difference in engine is fuel injection in intake swap back to the old one no prob use the new one just has updated injectors no problem the big thing is the trans to new 4.3 issue but I see it as the same as the 5.3 to older trans right

Well I got a dished flywheel and guess what davester you would of never guessed I got the engine in today and the trans starter. It moved the whole engine 3/4 of a inch back and transmission but yeah 2003 vortec v6  in a 1996 chevy truck whats up. Now davester Mr know it all you don't know squat I'll post pics soon dipstick dave 

[CamGTP]

Cool brah you proved someone wrong on the internet, now go eat a cookie.

 

Seems it would have been easier to just do the swap than waste time asking for help when you've already done all the research. Just because he was wrong on one thing doesn't mean he couldn't school you in a million other things.

 

What you are doing is not the norm and you know damn well of that. How many crack pots out there are asking this exact question.

 

Let clear one more thing up. The transmissions from the late 90's to mid 2000's have the same connector at the transmission. You could run a 2001 Silverado transmission on a 2005 Silverado calibration, that's how much it doesn't matter. The transmission is controlled from the PCM all the way up to 2007 because there is no separate TCM until the NNBS body style of 2007.5. Are there minor differences in the 4L60e, yeah but they are mainly all internal and related to parts used as things got better over time.

 

 

 

 

[davester]

Good stuff.  I never said it wouldn't work, just things to check.  I'm glad the swap worked.j