Jekyl.Hyde.Kustoms Posted June 23, 2013 Report Share Posted June 23, 2013 Just out of curiosity, has anyone successfully put a Ka24DE (DOHC) head onto a single cam block (ka24E). I've googled it, and supposedly it bumps up compression and such, but everyone only has their "theories" and not real world experience. I know you can swap pistons, but I'm just curious about swapping the heads. Thanks guys. Quote Link to comment
datzenmike Posted June 23, 2013 Report Share Posted June 23, 2013 Compression would be 10.94 because the de head is 18cc smaller. Quote Link to comment
filthy forever Posted June 23, 2013 Report Share Posted June 23, 2013 it would definitely not be a bolt on affair. apart from raising compression, the water jackets would need to be welded and moved, timing cover needs to be a DE and trimmed, timing needs to be spot on or valves will hit, I think you need to use the DE crank (not positive), and the DE uses a dual row chain as opposed to the E single row chain. on top of manifolds, wire harness and ECM I think it would be a better option to just go dual cam. Quote Link to comment
Farmer Joe Posted June 23, 2013 Report Share Posted June 23, 2013 what about the frontier head and timing cover? Quote Link to comment
datzenmike Posted June 23, 2013 Report Share Posted June 23, 2013 it would definitely not be a bolt on affair. apart from raising compression, the water jackets would need to be welded and moved, timing cover needs to be a DE and trimmed, timing needs to be spot on or valves will hit, I think you need to use the DE crank (not positive), and the DE uses a dual row chain as opposed to the E single row chain. on top of manifolds, wire harness and ECM I think it would be a better option to just go dual cam. . There is a dual row chain on the top for the cams but the primary chain is still single. This is a huge investment in time effort for what??? Quote Link to comment
filthy forever Posted June 23, 2013 Report Share Posted June 23, 2013 yeah finding a dual cam wouldn't be hard and they're relatively inexpensive, 240sx guys have them in abundance on zilvia.net for sale Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 I was curious since I have a ka24E block and DE head. I checked it out today and all the water jackets and bolt hole line up perfectly. I used the dohc timing chains with the E lower tensioner and tensioner arm, DE upper tensioner and DE lower chain guide. The lower cover is from the E and the upper cover from the DE. The only thing I had to fabricate was a small filler piece between the upper and lower cover, as there was a small gap. Upon visual inspection, the blocks are essentially identical on the outside. Bolt holes are in the same places. So this was basically a bolt on affair. Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 . There is a dual row chain on the top for the cams but the primary chain is still single. This is a huge investment in time effort for what??? For something to do... something different. I already had the parts and wanted to see if it could be done. Also, thanks for your calculations. When I posted this, I was hoping you'd be someone to reply. You seem to be the resident "guru" around here. I've learned a lot from reading your posts in the past. Quote Link to comment
filthy forever Posted June 24, 2013 Report Share Posted June 24, 2013 awesome to see someone charge it, post some pics!!! Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 yeah finding a dual cam wouldn't be hard and they're relatively inexpensive, 240sx guys have them in abundance on zilvia.net for sale No offence, but I wasn't posting this to ask what engine I should run. I was merely asking if anyone has seen this done. I don't need opinions on engines. I have a 620 which had a KA24E, and now has a KA24DE, so I've run both. I have an abundance of both parts, and just wanted to see if it can be done. Again, I don't mean any offense in this post, hope you don't take it that way. Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 awesome to see someone charge it, post some pics!!! Thanks man! I should have taken pics along the way, but sadly I didn't. I can snap some pics of how it sits now. 1 Quote Link to comment
datzenmike Posted June 24, 2013 Report Share Posted June 24, 2013 . This is a huge investment in time effort for what??? . Didn't mean you shouldn't. This is how things are discovered. I would imagine this should go at least as good as a DE. The DE block does have oil squirters to cool the pistons... something that would be very handy on an 11:1 compression motor. Quote Link to comment
filthy forever Posted June 24, 2013 Report Share Posted June 24, 2013 no offense taken just trying to help you but obviously you didn't need it. Quote Link to comment
filthy forever Posted June 24, 2013 Report Share Posted June 24, 2013 found this on the internet by people who have done it The parts you need to build a hybrid is a truck ka24de head, truck ka24de upper cover, truck ka24de upper chain, truck ka24de upper tensioner truck ka24de cam gears, and center gear, You also need a lower chain fabricated to fit the crank gear to the center gear.For the ecu you would need the truck de distributor. Slight modifying of the sohc timing chain cover and your done. Secondly you would have to us the DE crank shaft for the de lower timing chain cover because there is a gear on the snout of the de crank that spins the oil pump that is built into the de lower cover. Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 Quote Link to comment
Jekyl.Hyde.Kustoms Posted June 24, 2013 Author Report Share Posted June 24, 2013 Here's the KA24DE in my '73 620. There's more pics of the truck in the link on my signature. Quote Link to comment
Farmer Joe Posted June 24, 2013 Report Share Posted June 24, 2013 anyone have a picture of a frontier KADE head on the KAe block? they dont have the dist in the head, and might also have different water and oil passages that could work. Quote Link to comment
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