What is it? Series I or Series II?

[Arne]

The engine came with the early E31 head.

As it should be - the E31 was used from 69 though the Late 71 Model Year Z's. Series I and Series II.

Again worth noting that Nissan phased out the E31 head before the 1972 models were released. Some of the latest of the late '71 cars got the first variation of the E88 head. My 4/71 parts car had the E31, but my 7/71 car had the E88. (Side note - there were at least 4 different variations of the E88 head.)

[Carl Beck]

But I'm tired of the text avatar too....

How about this one -

{You could get rid of it once you buy another 240Z....It's OK to own a Porsche - as long as you park your 240Z in the Garage}

Edited March 26, 2012 by Carl Beck

[Zedyone_kenobi]

Okay, now I am confused. I have a 71 Z. And I will be putting in a new Type B tranny in my car when I do the engine swap. I was under the impression that aside from 'messaging' the opening in the transmission tunnel, it is a direct bolt in. Meaning I can use my stock driveshaft.

I know the Type A and type B are essentially identical in length, so that must mean the 72 Z's had longer drive shafts since the diff was placed further backward. Do I have that right?

[Diseazd]

No problem Zedy......use what you have in regards to your driveshaft....it'll work with either tranny. Guy

[LeonV]

Okay, now I am confused. I have a 71 Z. And I will be putting in a new Type B tranny in my car when I do the engine swap. I was under the impression that aside from 'messaging' the opening in the transmission tunnel, it is a direct bolt in. Meaning I can use my stock driveshaft.

I know the Type A and type B are essentially identical in length, so that must mean the 72 Z's had longer drive shafts since the diff was placed further backward. Do I have that right?

Correct, '72 and later models had a longer driveshaft. Use your current driveshaft unless you plan to do a diff swap.

[Diseazd]

Trannies are the same dimensions.....If you wanted to use a longer driveshaft, you'd have to use a 72 mustache bar, a 72 diff mount and the 72 diff hanger. This moves the diff back to correct the angular halfshafts to do away with the so called vibration of the early Z's. When you install a B tranny, it's exactly the same size as your A, so the driveshaft you have is good to go with either tranny. However, you're going to have a pain in the butt trying to make the B fit in your tranny tunnel and console.

[Carl Beck]

Trannies are the same dimensions.....If you wanted to use a longer driveshaft, you'd have to use a 72 mustache bar, a 72 diff mount and the 72 diff hanger.

If my memory hasn't failed me... I recall just turning the Mustache Bar around, likewise you just turn the front diff. mount around. The rear transverse link 70/71 is straight - so you would need the 72 curved transverse link. {item 3 in the picture} If you are installing an R-200, then you need the 280Z mustache bar.. it is stronger and has larger holes for the larger studs in the R-200 rear cover.

There is only one part number for the front diff. mount at this point - that covers 70-75 {and maybe beyond} But I can't recall of the 70/71 mount was actually any different. I always replaced them anyway with a new mount - any time I had to remove the old one.

This moves the diff back to correct the angular halfshafts to do away with the so called vibration of the early Z's. When you install a B tranny, it's exactly the same size as your A, so the driveshaft you have is good to go with either tranny. However, you're going to have a pain in the butt trying to make the B fit in your tranny tunnel and console.

The type B transmission shifter is about 2.25 inches farther forward than the original type A. Nissan Comp. used to sell a shift kit that allowed you to use the type B in place of a type A - - it had an "S" curved shifter - it is NLA - but you can get an idea of how to build one.

http://www.zhome.com/ZCMnL/tech/AandBtranny.htm

FWIW,

Carl B.

[Diseazd]

Right you are Carl.....

Edited March 26, 2012 by Diseazd

[Zedyone_kenobi]

It is funny you have that webpage mentioned Carl. I have that page copied and pasted into my Datsun Journal for such a reference.

I am willing to bet I can bend a stock shifter into that shape. If not, I can have one made. But worst case, is I will notch out my tranny tunnel.

now that I have decided to go L28, I am opening the flood gates to build the Z car I always wanted. All period correct Datsun only modifications. A what could have Datsun done if they wanted to. I am really looking forward to getting more fire in my Z.

Guy, thanks for all your advice, going with Eiji has been a very enjoyable experience so far.

[Carl Beck]

It is funny you have that webpage mentioned Carl. I have that page copied and pasted into my Datsun Journal for such a reference.

Thanks - Always good to hear that the information is useful to anyone.

I am willing to bet I can bend a stock shifter into that shape. If not, I can have one made. But worst case, is I will notch out my tranny tunnel.

This was a good discussion related to 5 spd's in 70/71 240Z's.

http://www.classiczcars.com/forums/showthread.php?24759-5-speed-in-a-4-speed-question/page3

Read the entire discussion - but - Note Post 73 - by sblake01 - the starting position on the 77/78 shifter - looks a lot like the one the Competition Shifter started with... That is instead of the shift lever starting at the 12:00 position - it starts {is attached to begin with} more at the 1:00 position. Bend that one back just above its attachment point - then straighten it back up on the last bend - and it should be pretty close to what you need.

Guy, thanks for all your advice, going with Eiji has been a very enjoyable experience so far.

Agreed - Eiji is a great person to work with.

FWIW,

Carl B.

[Diseazd]

Agreed - Eiji is a great person to work with. ..............and he'll build you the most beautiful motor (right down to his signature laquer coated freeze plugs) you've ever seen! Eiji is a purist......he loves the "L" series motor.

Edited March 27, 2012 by Diseazd