Mack Posted January 21, 2003 Share Posted January 21, 2003 this whole O.S. Giken thing go tme thinking.... WHy cant I build my own? so, as I sat and looked out at my vast feild (well, not that vast)of non-running nissans, I spied my 2 240sx coupes, both with blown motors due to timing chain buide collapses, plugs up the oil pick up, and blam, rod thru the block. SO, I have 2 SOHC 12 valve heads and my wheels start turning.... especially after I see this thread head thread So, I email good ole Dave and he says a KA24E 12 vlaver WILL fit on a L20B, so if it fits on an L20B, If I cut and hack 2 heads togethor it will fit on a L24, 26, 28, 30, 31. I think the best plan of action will be to cut one head in half, then cut cyl 1 and 4 off of the other, then stick the remaining cyl 3 and 4 inbetween the halves of the first head and somehow have it welded up. And then do the necessary cut and weld job on the cams to turnb 2 4 cyl cams into a 6 cyl cam. might be tricky, but I think it'll work. This accomplishes a few things. 1. we now have a cross-flow head. 2. It uses STOCK nissan valve-train parts 3. Its still SOHC, so no ultra trick chain drives are needed. only thing is front cover will have to be modded. 4. 2 34mm intake valves and 1 40mm exhaust valves? I can live with that! let me know what you think. P.S. this should work. the 510 guys put L heads on Z20, Z22 and Z24 blocks, and they put Z20, Z22 and Z24 heads on L blocks. The Z series head gaskets and the KA-E head gaskets look EXACTLY the same. all I need now is money. Quote Link to comment Share on other sites More sharing options...
Mudge Posted January 22, 2003 Share Posted January 22, 2003 Sounds interesting to me, will be tough and probably a bit expensive still, but I'd put my estimate at around 2k to get it done, minus parts. I'll talk to a head guy and see what he thinks, if they can do it to a block, they must be able to do it to a head. Quote Link to comment Share on other sites More sharing options...
Guest eric-z Posted January 22, 2003 Share Posted January 22, 2003 sounds like an plan. make sure you document it, if you do it. I want to hear about it eric Quote Link to comment Share on other sites More sharing options...
z-ya Posted January 22, 2003 Share Posted January 22, 2003 I'd be worried about getting the oil galleys, and coolant passages lines up and sealed when the pieces are welded together. Cool idea though. Pete Quote Link to comment Share on other sites More sharing options...
Guest shuyun Posted January 22, 2003 Share Posted January 22, 2003 Things like this have been done before. The old inline sixers in the U.S. used to cut of the 4th and 1st cylinder of the cross flow heads from a v-* engine to get cross flow heads for their motors. I don't have any specifics but my uncle said they used to jb-weld them together. Quote Link to comment Share on other sites More sharing options...
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