Tony D Posted July 9, 2007 Share Posted July 9, 2007 There are three NIB (New In Box) that I know of, recently acquired by accident, and I advised the buyer NOT to sell or trade them! In Japan, I have seen LY heads bare sell for $30,000 and UP! Having had a ride in a car powered by one, 'meh'.... A well done non-crossflow head can make just as much power, and at 1/10th the cost. The fascination with crossflow technology is more emotional than practical in most of these cases. Link to comment Share on other sites More sharing options...
Guest boostedbastard Posted August 11, 2007 Share Posted August 11, 2007 anyone know what cams this guy is using because i am really interested in this Link to comment Share on other sites More sharing options...
bartmerr Posted August 11, 2007 Share Posted August 11, 2007 he had a machine shop he knows make them for him Hi this was made by Spacecase not me. he apoligized to me and I to you all for this mistake. I personaly am VERY interested in this and wish to know which cam you are useing. I have been informed that they are from the Skiline. What year? Link to comment Share on other sites More sharing options...
Clifton Posted August 11, 2007 Share Posted August 11, 2007 he had a machine shop he knows make them for him Not so. I know what they are and I think he posted what they are. Link to comment Share on other sites More sharing options...
Challenger Posted August 11, 2007 Share Posted August 11, 2007 Wouldnt nissan have the original molds in storage? Im guessing they wouldnt throw that kind of thing away. Im amazed that no aftermarket company make a head. My friend has a 250 strait six mustang and they sell an aftermarket 4 valve head. I think theres more interest in z's then strait six mustangs. Link to comment Share on other sites More sharing options...
1 fast z Posted August 11, 2007 Author Share Posted August 11, 2007 Have been working ALOT on the project, to button it up for the JCCS show in october, car is pretty amazing, I guess I need to get some updated pictures up. Link to comment Share on other sites More sharing options...
1 fast z Posted August 11, 2007 Author Share Posted August 11, 2007 By the way, why would I have a machine shop make anything for me? We do own a machine shop, with every capable machine, LOL. Link to comment Share on other sites More sharing options...
Guest boostedbastard Posted August 11, 2007 Share Posted August 11, 2007 i finally found out that they are RB26 cams one thing that im scratching my head about is how in the world did you mount the cam sprockets to the cams thanks Link to comment Share on other sites More sharing options...
Tony D Posted August 11, 2007 Share Posted August 11, 2007 Wouldnt nissan have the original molds in storage? Im guessing they wouldnt throw that kind of thing away. Im amazed that no aftermarket company make a head. My friend has a 250 strait six mustang and they sell an aftermarket 4 valve head. I think theres more interest in z's then strait six mustangs. LOL, there are more straight-six mustangs in one year than total domestic production of the S30 series from 69-77! You underestimate the interest in domestic fare in the USA...though I have never heard of a four valver for the Inline Six---anybody for a 5.0L Inline Six Four Valve head? Nissan destroyed almost everything to do with the early Z Cars during 'the turmoil' in the 80's... Datsun was a Baaaaad word then! Datsun didn't make the head anyway, I suspect Hitachi did it...or Fuji Heavy... Link to comment Share on other sites More sharing options...
oatmilk Posted August 12, 2007 Share Posted August 12, 2007 If it was ours I can just about guarantee its gone. They get rid of everything over here if its not needed. Link to comment Share on other sites More sharing options...
Daeron Posted August 13, 2007 Share Posted August 13, 2007 Datsun didn't make the head anyway, I suspect Hitachi did it...or Fuji Heavy... Fascinating... I know there is ALOT of fuji heavy industries in the car, but I hadnt suspected the cylinder head, heh... Come to think of it, the P series CC and the one on my 87 Subaru GL-10 are essentially identical in shape.. now you got me wondering, and something tells me that IF I ever hear the answer, its going to be a looong time. Not to question your facts, but I am curious where you picked up this bit of knowledge.. inquiring minds want to know. Link to comment Share on other sites More sharing options...
Tony D Posted August 13, 2007 Share Posted August 13, 2007 Ever take a look at the castings closely? Hitachi, like Yamaha, has a very distinctive mark. Even with 'Nissan' throttle bodies you can find 'The Distinctive Trademark of Hitachi' on some of them! Many times it's a factor of who did the design work. Nissan may have done the work, as they did have a large foundry, but some of it morphed into Fuji Heavy (ever notice Subie Diffs are R180's and R200's? 'Datsun Parts' to us, but "Fuji Heavy" componentry available to anybody who wanted to buy in sufficient numbers.) Jaguar used Saginaw Steering Gear components made at Plant 2 in Saginaw Michigan for years. Matter of fact, there was a LOT of 'secret product interchange' on componentry. Johnson Controls makes seats for Ford...Dash Assemblies for Nissan and Ford, amongst others... Some people do one thing, do it well, and everybody beats a path to their door. Oh, and 'I have ways' of finding this stuff out. LOL Link to comment Share on other sites More sharing options...
Daeron Posted August 14, 2007 Share Posted August 14, 2007 Ever take a look at the castings closely? Hitachi, like Yamaha, has a very distinctive mark. Even with 'Nissan' throttle bodies you can find 'The Distinctive Trademark of Hitachi' on some of them! Many times it's a factor of who did the design work. Nissan may have done the work, as they did have a large foundry, but some of it morphed into Fuji Heavy (ever notice Subie Diffs are R180's and R200's? 'Datsun Parts' to us, but "Fuji Heavy" componentry available to anybody who wanted to buy in sufficient numbers.) Jaguar used Saginaw Steering Gear components made at Plant 2 in Saginaw Michigan for years. Matter of fact, there was a LOT of 'secret product interchange' on componentry. Johnson Controls makes seats for Ford...Dash Assemblies for Nissan and Ford, amongst others... Some people do one thing, do it well, and everybody beats a path to their door. Oh, and 'I have ways' of finding this stuff out. LOL I have seen the Fuji Boomerang on a number of bits of my datsun, as well as hitachi and N-D and niles and so many other component manufactorers on both cars.. In fact, I have deeply considered the viability of using a pair of my GL-10's SPFI TBs on SU manifolds as a quick and dirty FI conversion, and hope to someday sit down with my uncle and build one of his roadsters inot a MS FI car with the various ignition and induction parts from both subaru and datsun. After all, "SU" Carbs are all really hitachi "knockoffs" anyhow. In any case, between the Z car ignition bits, the stock roadster ignition bits, and the subaru ignition bits, I should be able to hobble something together to go in the distributor slot of the roadster engine, yet provide a computer with the right output for FI control. (the FI sooby distributor has an optical pickup wheel built into it, and there are two different flavors, one maunfactured by ND and one hitachi.) Link to comment Share on other sites More sharing options...
Tony D Posted August 15, 2007 Share Posted August 15, 2007 Try simply taking an optical CAS from any of the Nissan Vehicles and driving it by the distributor shaft. In a pinch you can drive it off the cam, but meh! Some of the CAS units on the SR20's are pretty compact. For a four cylinder you only need two paddles for ignition events ... Link to comment Share on other sites More sharing options...
Guest boostedbastard Posted August 16, 2007 Share Posted August 16, 2007 how are you going to work out the ignition Link to comment Share on other sites More sharing options...
Mack Posted August 16, 2007 Share Posted August 16, 2007 theres room to use the stock L series distributor, if one felt so inclined. Ill be running coil packs or ford EDIS when I get it all worked out. megasquirt it is. Link to comment Share on other sites More sharing options...
1 fast z Posted August 21, 2007 Author Share Posted August 21, 2007 Ok, so I have finally cought up on customer projects, and gotten some time in on the L31dett project. We got the Valve job completed, and everything cleaned and assembled. The "thirds" are now assembled for good, sealed and all. I spend the last couple evenings setting the valve lash. Its a Shim On Bucket design, so that means, LOTS of time on the surface grinder to get an exact .013 ex clearence, and a .011" clearence on the intake. I will assemble the timing chains and guides tomorrow, and then can get the oil pan on, oil pump, ac compresser, etc. Should be able to have the engine in the car within this weekend, so we can start the wiring, of MSnEDIS, etc. The stock KA upper timing cover did NOT bolt up at all the the L series timing cover, and had a 2" gap. So rather than doing alot of cuting and welding, I decided to build my own. It even incorperates the stock oil catch, for the upper timing chain. I had to do custom engraving, though, hehe. Got the EX manifolds welded together and finished also, other than plating. Brakes are finished on the car also, with 13" rotors up front and 11.65 in the rear with wilwood four piston calipers. Link to comment Share on other sites More sharing options...
Gollum Posted August 21, 2007 Share Posted August 21, 2007 That's a nice manifold, top notch to say the least. Love how the pressure equalization tubing makes a stock dizzy kinda impossible to use. Who cares if you're running edis right? Looking better and better. Really excited to see/hear this thing run, even if it's only video. I can't even imagine the words to describe how eager I am to see dyno numbers once it's running and any/all kinks are worked out. Link to comment Share on other sites More sharing options...
Careless Posted August 21, 2007 Share Posted August 21, 2007 amazing! u should polish the timing cover to a uniform finish so it's easier to see who dunnit! Link to comment Share on other sites More sharing options...
Daeron Posted August 21, 2007 Share Posted August 21, 2007 My jaw was literally trembling looking at the pics. I would LOVE to see what a set of triple webers or ITBs would look like on that head.. somehow the images of the cams and all the rest, and the lines of sixes and twelves going down the entire length, beg for the image of the six runners/carbs attached to them. Not to actually question anything technical by any menas; I was merely discussing the sheer aesthetics of the image. It honestly looks alot more impressive and frightening with that airbox and huge TB on it. What was your plan on the valve cover again? any thoughts of finishing that top timing cover at all or are you leaving it as is? If this power plant runs half, or even a fourth as strong as it looks.. OOMPY! Much congratulations, tickertape parade, and complete Roman Triumph shall be awarded to you upon your return from the dyno shop. Thanks for the update, we have been starving here Link to comment Share on other sites More sharing options...
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