It looks like I may have to go E-Rod on my 240SX for the sake of emissions legality. And the whole idea of going LT1 vs LS3 for only $1000 more looks interesting. But one thing that could kill this is the oilpan. The 240SX needs a front sump pan. A number of manufacturers make such a pan for 240SX swaps, but for Gen III/V. Would a swap pan for a Gen III/IV engine fit on a Gen IV?

 

Your title says Gen V, but your text says "will a Gen III/IV fit a gen IV? "

????

 

No. End of story.

 

Generation III and IV is LS platform.

GEN V......

 

Just stay with the Gen 3/4 and you will be alright. If you are asking about the pan, then you didn't do research on anything else.