'97 SL2 head onto '99 SL2

[1badnotch]

I have a '99 SL2 that I want to swap a '97 SL2 head onto. I want to swap to this head so that I can perform some port work and also use the '92 SL2 factory header that I have. Are there any major reasons to not perform this swap? Is there anything else that I would need besides the cylinder head,valve cover,intake manifold to do this swap? Thanks.

[madpogue]

You'll obviously need a '91-'98 DOHC timing set. IIRC, the '99 PCM will require you to retain the '99 fuel system. While you're at it, you may as well get a '93-'95 aluminum valve cover.

[OldNuc]

You also will need the 92-98 timing cover. Use a 98/99 fuel rail and the fuel system will continue to function as designed. The 98/99 returnless rail fits on the 97 intake and the 99 intake will fit onto the 97 head. So, put the 99 intake complete onto the 97 head and avoid the TPS/Throttle Body hassle. Some of your sensors are more or less generic and some are PCM year specific, the TPS is the only one that comes to mind for the swap you propose. The knock sensor is critical for this type of swap so make sure the one installed is good.

[1badnotch]

Ok,so I will also need the timing cover and timing set from a 91-98. I have the aluminum intake on my '99,so I am glad to hear that it will bolt right up to the '97 head. I also plan to keep the returnless fuel setup so that I won't have to swap the PCM. Where is the knock sensor located? Thanks for the info.

[OldNuc]

You can not swap the PCM, it stays with the body. Knock sensor is on back of the block. They rarely fail but you do not want a bad one either.