Hello,
I have a 1996 blazer with a blown engine (4.3). I have a good 1999 engine (4.3). What do I have to change to make fit. I just want it to run. Service engine light has always been on so Im not to worried about a check engine light as long as it runs good. Any suggestions or ideas would be greatly helpfull. Thanks.

Should be a fairly straight forward swap. Nothing really should jump out at you. These motors are essentially the same.

Thanks for the info. Im in KY right now. Grew up in Dresden. Not too far from U.