Loyale 2.7 Turbo Posted May 17, 2015 Share Posted May 17, 2015 Add a TK7 Gen 3 to this list. I have it sitting right in front of me. So, please Share a couple of Photos with Us. I do not Doubt what you tell, but the Photos will add accurate info to this Database. Kind Regards. Quote Link to comment Share on other sites More sharing options...
coxy Posted May 28, 2015 Share Posted May 28, 2015 (edited) I think I have the explanation for all these casting numbers Having Worked for Kawasaki, What few people realise is that in Japan for many decades production has run on the JIT basis (Just In Time) meaning the parts arrive just in time for assembly unlike the old days of manufacturing where many bins of stock sat there for the picking by the assembly line. That is why now people restoring the old Kawasaki Z1 900 can buy Exhaust Systems and Fuel Tanks and Panels from the Original suppliers to Kawasaki with the only difference being no Kawasaki part numbers are to be found like the original product supplied under contract, Similar has occurred with the Honda CB750 and it possibly will occur with some Car subcontractors if they were lucky or smart enough to keep the production dies or jigs to remanufacture what they once did as a subcontractor, Those particular Contracts long being finished and void allowing remanufacture of all but perfect replacement replica's. Now where this gets interesting is a little known fact that much actual Parts manufacturing for major manufacturers takes place in the back street shops of small subcontractors with the Factories using a number of subcontractors to ensure any issues with supply are circumvented by having two or more sources supplying if not identical parts then parts made to a certain specification, This is why sometimes the casting marks actually signify either the subcontractor or in some cases the location of one of the manufacturers own factories where production took place. In the case of many Manufacturers such as say Toyota there are differences in the Vin Number to signify which Plant manufacturing took place in not just whose vehicle it was, Not as stupid as it first seems when considering somebody with zero Vehicle empathy may just work in a Government department on a vehicle safety recall then all the numerical codes make sense, Such as the current Airbag Recall World wide where production numbers and plant or subcontractor responsible is traceable through part numbers and casting numbers to narrow down the search for affected units. When you learn how to decipher the numerical codes then it helps to identify the better parts options just as with the EA 82 heads, Or even things like the correct Distributor with the Mechanical and or vacuum advance that is most desirable having figured out the part number on the body for the right one, That is what you look for. Edited May 28, 2015 by coxy Quote Link to comment Share on other sites More sharing options...
-tombba- Posted June 13, 2015 Share Posted June 13, 2015 Thanks for confirmation Karhu. So it would appear there are 2 different TK8 EDM heads, one underlined (gen2) and one boxed (gen3). I ended up coughing up the dough for Drischnie's heads, when they arrive I'll put some valves in and CC the combustion chamber. Then we can compare it to the USDM spec heads (which I think are around 39cc in the heads). I have a piece of plexi with a hole drilled for that. Found a set of TK8 heads without underlining or box in the EA82: https://www.dropbox.com/s/rd09sxqpf0n9v75/2015-06-13%2020.52.42.jpg?dl=0 https://www.dropbox.com/s/gbb5t2yyeu4atuf/2015-06-13%2020.52.51.jpg?dl=0 https://www.dropbox.com/s/fwcie1s4qxmr6po/2015-06-13%2020.53.04.jpg?dl=0 Quote Link to comment Share on other sites More sharing options...
-tombba- Posted June 13, 2015 Share Posted June 13, 2015 Oh and some more: _____ TK2 |EA82| : https://www.dropbox.com/s/rewdulsewq1hicy/2015-06-13%2022.57.15.jpg?dl=0 https://www.dropbox.com/s/c4tn2v8v2sd0amk/2015-06-13%2022.55.55.jpg?dl=0 1 Quote Link to comment Share on other sites More sharing options...
scoobiedubie Posted June 14, 2015 Share Posted June 14, 2015 So, please Share a couple of Photos with Us. I do not Doubt what you tell, but the Photos will add accurate info to this Database. Kind Regards. Here are the TK7 Gen 3 pics. https://www.dropbox.com/s/uwdd6zsc6vybbx0/DSC_0027a.jpg?dl=0 https://www.dropbox.com/s/egqnk8n2l4abfku/DSC_0028a.jpg?dl=0 1 Quote Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted June 14, 2015 Share Posted June 14, 2015 Obviously the above links shows photos of: ► TK2 - third Gen Heads, and ► TK7 - Third Gen Heads, also That clearly means that the Differences between the TK# numbered heads, are related to the Different Markets' Specifications, where those EA82's were Sold, mainly based on their different Contamination and Fuel Consumption Regulations, etc. Based on that, then the TK# are not an indicative of older or newer Design; and thus explains the differences on Combustion Chambers. In example: Not all countries required Catalytic Converters and the rest of the related Bullsh¡t; and those, are countries that got the More "Powerful" versions of that Subaru Models from that Era. Kind Regards. Quote Link to comment Share on other sites More sharing options...
MR_Loyale Posted June 15, 2015 Share Posted June 15, 2015 100% positive. All of the heads I own came from turbo cars, RX's mostly. I have 9 heads sitting in the dining room (my wife hates me), all are dual intake heads. I can take pictures of each if you desire. Quote Link to comment Share on other sites More sharing options...
tweety Posted June 15, 2015 Share Posted June 15, 2015 Re: sitting in the dining room (my wife hates me) My first wife hated my Ford Zephyr heads in the bedroom. I'd wake during the night and couldnt see the harm in polishing the ports. Suppose the electric drill was a little loud. My second wife told me after 10 years "its the trike or me......I bought the trike. Was such a stupid move to give me a choice. My current wife loves me totally. Doesnt mind car parts on the lounge room floor, pin up pics in the bedroom of valves and lobes and loves the sound of a throbbing ea engine. Nope....I dont believe her 1 Quote Link to comment Share on other sites More sharing options...
nncoolg Posted June 29, 2015 Share Posted June 29, 2015 (edited) TK9 Gen3, Flat valve bridge but its been reco'd so I suppose a valley could have been filled... TK4 Gen1, Flat valve bridge but its been reco'd so I suppose a valley could have been filled... I found this pretty interesting... Edited June 29, 2015 by nncoolg Quote Link to comment Share on other sites More sharing options...
drischnie Posted March 6, 2017 Share Posted March 6, 2017 (edited) Anyone know where the user Ibreakstuff, starter of this thread, is? he bought my EDM heads in 2015 and then he has no new posting here... the last message i got from him was on april 27th in 2015 as the heads arrived him in San Francisco: "I'll try to measure the combustion chamber volume this week." Edited March 6, 2017 by drischnie Quote Link to comment Share on other sites More sharing options...
nncoolg Posted January 12, 2020 Share Posted January 12, 2020 Here a set of my GEN3 TK8 heads. I have them up for sale by the way, if anyone wants them... Quote Link to comment Share on other sites More sharing options...
carfreak85 Posted January 13, 2020 Share Posted January 13, 2020 Have these been pressure tested? Looks like there is a crack in one of the chambers. Quote Link to comment Share on other sites More sharing options...
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