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Valve cover differences

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Just came across this link which shows a new valve cover which I have never seen before, the "NISSAN 2000 OHC" http://www1.odn.ne.jp/yooopage/myskyline-engin_cover.html

Yes, and if you follow this link on the same site - you'll see the L20A under discussion in the 68 Skyline GC10/KGC10.

Too bad there are no close-up's of the valve covers...

<a href=http://www1.odn.ne.jp/yooopage/othermachine.html TARGET=NEW>http://www1.odn.ne.jp/yooopage/othermachine.html</a>

From: <a href=http://history.jbskyline.net/index2.php#4thgen TARGET=NEW>http://history.jbskyline.net/index2.php#4thgen</a>

Quote:

The Skyline 2000GT (GC10 series)

Just like all other derivatives of the C10 series, the GC10 (G standing for GT) was basically planned by Prince, although it was later badged Nissan Skyline 2000GT. It was introduced in 1968 (2 months after the 1500) and first came in 4-door sedan (GC10) and 5-door wagon versions and from 1970 on also with two doors (KGC10). The car was almost the same as the preceding S54 GT-A model, featuring a 6-cylinder engine instead of the previously common 4-cylinder. The Skyline 2000GT got the L20 engine, a 1998ccm OHC inline-6 with 105hp.... End Quote:

Scrol down and check this valve cover:

<a href=http://www1.odn.ne.jp/yooopage/A-san.html TARGET=NEW>http://www1.odn.ne.jp/yooopage/A-san.html</a>

FWIW,

Carl B.

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Wasnt there a "NISSAN 2300" or "NISSAN 2300 OHC" valve cover from the Datsun Super 6 (P130) (on an L23 obviously). Think I remember seeing one of those too.

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Scrol down and check this valve cover:

<a href=http://www1.odn.ne.jp/yooopage/A-san.html TARGET=NEW>http://www1.odn.ne.jp/yooopage/A-san.html</a>

FWIW,

Carl B.

You've never seen one of those before? Aftermarket, based on one of the 'Kakimoto Racing' originals.

There's one sitting on top of my engine:

post-2116-14150797039862_thumb.jpg

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Yes, and if you follow this link on the same site - you'll see the L20A under discussion in the 68 Skyline GC10/KGC10.

Too bad there are no close-up's of the valve covers...

Carl,

There was no KGC10 in 1968.

Here's a scan from the 1968 Skyline 2000GT ( GC10 ) sales catalogue:

post-2116-1415079706551_thumb.jpg

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Two shots from the 1969 Tokyo Auto Show.

'Cedric Special Six' engine bay and 'Fairlady Z-L' engine bay. Both 'NISSAN 2000 OHC' cam cover:

post-2116-14150797066108_thumb.jpg

post-2116-14150797066601_thumb.jpg

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You've never seen one of those before? Aftermarket, based on one of the 'Kakimoto Racing' originals.

There's one sitting on top of my engine:

Alan - you have aftermarket parts on YOUR Z!! and one's that say DATSUN.. yea gad!! <vbg>

regards,

Carl B.

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Carl,

There was no KGC10 in 1968.

Here's a scan from the 1968 Skyline 2000GT ( GC10 ) sales catalogue:

Hi Alan:

Yes... and quoted site does say .."and from 1970 on also with two doors (KGC10).." sorry didn't mean to mislead anyone...

regards,

Carl

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Alan - you have aftermarket parts on YOUR Z!! and one's that say DATSUN.. yea gad!!

regards,

Carl B.

Sure I have. Why not? Its no 'concours' queen ( dread the thought ). That thing's had R.S.Watanabe 8-spokes and a Sanyo Sports Kit triple carb setup since time immemorial ( well, long before it came to the UK anyway......). Its got plenty of factory Sports Option parts on it too though.

'Datsun'? What's wrong with that!?

Actually, you probably know that many Japanese have a strong affection for the Datsun brand name ( just look at Kats for example ) and the name still gets used with a certain recherche du temps perdu.

I often grin when I read people talking about their "Datsun" engine, when in fact it says 'NISSAN' in big letters along the cam cover. You could see my cam cover as Ying to that Yang; A Japanese company using the 'Datsun' name on a Nissan engine out of a kind of inverted snobbery.

By the way - its not on the car anymore. Its sitting on a shelf in my garage. The organ transplant was rejected, so to speak.

Alan T.

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Come on Carl, play the game.

I'd like to hear your justification for standing by some of the erroneous 'history' you have added to this thread - especially in light of my challenges to it, when I cited the words of the very man who designed the Nissan 'L-Gata' engine. That's not my take on it all - I'm just the messenger. The history comes from the mouth of one of the main protagonists. It completely contradicts your version of events.

Here are two of the quotes that warrant further scrutiny and discussion:

The L16 was thus born in 67 and introduced in the 1968 510. This is the beginning of the "L Series" engines we all know and love today.
It was in fact a complete new engine design. new block, new head, new "Valve Cover". One might call it the next generation of Nissan L Series engines at Nissan; where one Parent was Nissan and the other Prince, but it was not otherwise related to their previous "L" Type engines.

Both of these are clearly wrong according to historical evidence and the words of the designer of Nissan's 'L-Gata' engine. What's your reply to that?

I think I need to start a new thread on the topic of the true evolutionary development of the Nissan 'L-Gata' / 'L-type' / 'L-series' engine.

Alan T.

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I think I need to start a new thread on the topic of the true evolutionary development of the Nissan 'L-Gata' / 'L-type' / 'L-series' engine.

Alan T.

Please and pinch me too!

Will

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You've never seen one of those before? Aftermarket, based on one of the 'Kakimoto Racing' originals.

There's one sitting on top of my engine:

alan, can you provide more information on this valve cover? How much is it worth, how rare is it?

...where can i get one? LOL

edit: just found the Kakimotoracing.co.jp website... $607(us)!!! and it doesn't even have a part number next to it.

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Hi Guys,

I haven't posted for ages on here, hope the people I know are all well.

Interesting discussion which is also going on at HybridZ.

I am curious to know whether companies such as Kamikoto and Bob Sharp Racing etc.. adapted the standard valve cover (by shaving off the standard letters and glueing on their own design) or did they create a completely new casting? Can someone who has one please confirm.

It doesn't seems economically feasable to create a completely new castings just for a logo yet they look cast to me.

Below is the Bob Sharp cover, which I much prefer over the Kamikoto, if anyone has one for sale then please let me know! :)

Bob_Sharp.jpg

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alan, can you provide more information on this valve cover? How much is it worth, how rare is it?

...where can i get one? LOL

Hi olie,

Mine is at least 15 years old now, and I can't remember which company it was that had my version cast. I think I remember buying it from 'Escort', but I don't believe it was 'their' version.

The 'original' casting pattern was paid for by Kakimoto Racing I believe, and the others are all taken from modified versions of that pattern - cast at the same foundry. Probably a case of the foundry keeping some ownership rights to the pattern and making their money back by letting other companies have their own versions that didn't infringe whatever rights Kakimoto still held. That's just an educated guess though.

Kameari Engine Works in Yashio City, Saitama prefecture still sell the 'DATSUN 2400' version with 'OHC' on the front. Price is 50,400 JPY including sales tax. I know the company well and have been dealing with them for many years now.

I haven't seen the 'DATSUN 3100' version on sale for some years now, and I presume they are fairly rare. This is probably due to the fact that they were cast in batches, and not enough demand for a new batch has held back production.

Bound to show up on Yahoo auctions Japan eventually if you keep your eyes open........

Sorry I can't be of more help.

Alan T.

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You've never seen one of those before? Aftermarket, based on one of the 'Kakimoto Racing' originals.

There's one sitting on top of my engine:

What's this one say? I can only read part of it.

alan, can you provide more information on this valve cover? How much is it worth, how rare is it?

...where can i get one? LOL

edit: just found the Kakimotoracing.co.jp website... $607(us)!!! and it doesn't even have a part number next to it.

And here's a whole nother thread on this topic: http://www.classiczcars.com/forums/showthread.php?t=20901

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Some comparison pics:

Any real reason for it being so squared off compaired to the stock/original valve covers?

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Quote:

The Skyline 2000GT (GC10 series)

Just like all other derivatives of the C10 series, the GC10 (G standing for GT) was basically planned by Prince, although it was later badged Nissan Skyline 2000GT. It was introduced in 1968 (2 months after the 1500) and first came in 4-door sedan (GC10) and 5-door wagon versions and from 1970 on also with two doors (KGC10). The car was almost the same as the preceding S54 GT-A model, featuring a 6-cylinder engine instead of the previously common 4-cylinder. The Skyline 2000GT got the L20 engine, a 1998ccm OHC inline-6 with 105hp.... End Quote:

The quote also implies that Nissan made GT versions of the wagon, which they did not. Nissan only made them as 2 door hardtops and 4 door sedans.

Back to the discussion at hand, my 71 Skyline has the "Nissan OHC" cam cover; but I have seen the "Nissan 2000 OHC" cover. Since the basic engine is the same, L20, L24, L26 and L28 cam covers all interchange. The popular one here seems to be the JDM one with NISSAN in big block letters on it.

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There was a BOB SHARP valve cover on a car on ebay a while back, George. Attached is a photo from that auction. Looks like they were $119 new.

post-6120-14150797079375_thumb.jpg

post-6120-1415079707957_thumb.jpg

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Thanks for all the pictures! This thread has been quite informative for me. Who would-a thunk? Valve cover art has been popular throughout the development of the internal combustion engine. It is the best way to advertise and present one's name and business image. They are not all that difficult to make. The cost is in the pattern and for that reason, I would guess the Kameari type cover is squared. However, if you think about it, the placement of the oil spout does not have to be located at the front and the graphics could be anything.

But now that we are talking about it, I know people who are looking for Nissan 2000 OHC, Bob Sharp Racing, and I'll have to ask Her Majesty if she would like to sport a Kameari cover. She might like that. If anyone wants to part with a 2000 OHC or BSR cover, PM me.

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Any real reason for it being so squared off compaired to the stock/original valve covers?

Yes, its to make more space for those "BIG" cams that we sometimes hear people talking about........

:)

26th-Z probably touched on the closest reason to the truth. Curves cost more money. Straighter lines are cheaper.

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Carl,

I asked for your response to some questions I put to you. You seem to be ignoring this request so far.

Do I take it that you have no answer?

This topic is close to my heart. I think the Nissan 'L-Gata' engine was a great basic engine design that is pretty much World-renowned for its flexibility, reliability and durability - let alone the fact that it was able to be turned into a race winner. But ( just like the situation with the design of the S30-series Z ) almost nobody knows the name of the key designer behind it, and its true heritage and evolution is distorted by rogue data and advertising copy. I think this is a great shame.

I'm going to embark on starting a new thread topic in the near future, as I think this subject warrants it. But I also think that the points raised in this thread need to be settled before it goes into the archives and gets used as reference material in the future.

So Carl - I'm asking you politely - I think it requires further comment from you. In my opinion, that's what these forums are for.

Alan T.

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Well, we know what the next piece of "Club Merchandise" should be!

Will

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for what it's worth this is my "NISSAN" valve cover from my L28 with a P90 head. As far as I know the engine was not imported but cannot be sure. I've seen this valve cover before but with a slightly BIGGER "NISSAN" stamped onto it.

http://www.classiczcars.com/photopost/data/500/1316digitalcamera_046.jpg sorry it's upside down can't take photos of it at the moment it's at the engine head shop.

I have enjoyed reading this thread for the most part.

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