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Engine & Drivetrain

Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.

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Ot poic but what the heck. 1 2

June 7, 2004 by Fun_in_my_z
13 replies

2k views
Im helping my brother out To make imense for somthing some of you may have heard about. Hes looking for a big block engine and 400 turbo auto trans. Cant pay much but will work something out. Prefer in southern area near Arkansas. Thanks in Advance Bill.

Last reply by Fun_in_my_z, June 15, 2004
Manifold studs 1 2

June 13, 2004 by Ed
21 replies

11.3k views
Is there a difference in the length of the studs that hold the intake/exhaust manifolds to the head?

Last reply by Zedrally, June 15, 2004
L28ET into my 280Z

June 9, 2004 by Datsun-Fever
4 replies

2.1k views
Hey guys, can anyone tell me where to find info on transplanting an L28ET into my 1978 280Z? i got a cheap deal on one, but i cant seem to find any guides and how to's.

Last reply by thefastestz, June 13, 2004
P90 head on a L24 block???

June 9, 2004 by jholmes240z
1 reply

2.8k views
I have a p90 head that is warped by 5/1000ths and I'm getting it shaved by 1/8000ths. Will this head work on my L24 block? What would my compression be and which head gasket thickness should I use?

Last reply by Brett240, June 10, 2004
Taking The Block Apart While Still In The Car 1 2

June 8, 2004 by texasz
15 replies

2k views
On my parts car I'd like to remove the oil pan, crank, pistons, rods, etc without removing the block from the car. How is this done and is it worth the effort (I'm just selling the parts to fund my project)...time vs. money for the parts I sell? I already have the head off, removing the water pump and front cover should not be a problem. Oh and the radiator is out also so this will not be in my way either, nor will the A/C compressor or alternator as those have also been removed. Any help would be great!! Thank you in advance. :classic:

Last reply by 1975yellowBSPZ, June 9, 2004
Gas Tank Questions 1 2

May 31, 2004 by seerex
14 replies

2.1k views
Ok guys I got my tanks back from the shop a while back and its all new looking and pretty , I also ordered a new sending unit , is there a way of knowing which direction it goes as in up or down? Also 2nd question the vent system lines<rubber ones> I know the 3 main ones I had were rotted so badly they broke apart when trying to remove, these line are the only non new item for the tank due to the roughly $170 for all three , any suggestions or am I out of luck and just have to spend it? Has anyone used univeral hose or heater hose or know any alternatives? Thanks

Last reply by kmack, June 9, 2004
Exhaust problem

June 1, 2004 by dhoneycutt
3 replies

1.3k views
Has anyone ran into the problem after installing the MSA's 6 into 1 header of the transmission mount interfering with the 2.5 inch piping ? If so please give me some ideas:disappoin I really don't want to have to dent the pipe there to gain the 1/2 inch clearance!

Last reply by 240ZMan, June 8, 2004
Engine Swap...

May 25, 2004 by justaZcarguy
8 replies

2.1k views
Need Advice on swapping the engine from the '74 to the '71 or possibly another car... Is you experience, is it easier to pull the unit out as one part (engine and tranny) or seperate the two? Let me know the shortcuts if any?? Thanks guys, I have a buch of decisions coming soon on cars and what to do with 'em... I really need a good car in need of a motor / tranny... I'm just not sure that the '71 (unfortunatly is going together as planned... Thanks and have a great day! ~Brian

Last reply by beandip, June 8, 2004
Bad starter?... car will not start 1 2

May 28, 2004 by v12horse
19 replies

2.2k views
Oh man, I went to go start my car today and the starter turned very slow and then I attempted to start it again and the starter stopped and now when I turn the key to "start" the starter does not make any sound at all. The only thing I hear is the relay under the dash. I have been reading up on the fusible link, the solenoid, and the starter. And I am not sure which one it could be. I don't have my service manual so I am really hindered. I have an early 1974 260z. Any help on this would be great as I am trying not to spend a lot of money. Where should I look for a new starter if that is the case? p.s. When I was looking around in the engine bay I noticed that …

Last reply by v12horse, June 7, 2004
Sump Design

May 26, 2004 by drunkenmaster
11 replies

2.1k views
Guys, I need an experienced opinion on this sump for my conversion, it looks a bit rough to me but then again, I am hardly experienced in the ways of the sump. Thanks

Last reply by drunkenmaster, June 7, 2004
Octane question 1 2

June 5, 2004 by 77 Z
17 replies

6.8k views
Why is it that the inline fuel injected 6 cyl engine in Z cars needs a min of 91 octane fuel when 8 cyl as well as 4 cyls will run well on 87 octane. My Z owners manual says use a min of 91 octane, but our sons Mits Eclipse runs great on 87 , our Caddy runs great on 87 and has an 8 cyl engine..but the Z is supposed to have 91... This is not about the cost of fuel , its a question about why the Z has to have the higher octane 77 Z

Last reply by MikeW, June 6, 2004
240z Casting Numbers

June 4, 2004 by lonetreesteve
0 replies

2.1k views
Does anyone know the significance of the casting numbers on the Driver's side on the lower portion of the engine block? Is there a special code for day, month & year for production date? For example, on the old Pontiac GTOs of the mid & late '60s, a letter such as an "X" stood for the 24th day of the month and a "4" would indiate that the engine was made the 4th week of the month, etc.

Last reply by lonetreesteve, June 4, 2004