SR Engne Swap possibilities?+ - Page 2
  • Register
  • Help
Page 2 of 2 First 12
Results 26 to 36 of 36
  1. #26
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Location
    Camden NSW & Selwyn NZ
    Posts
    2,334
    GRAHAM WALLIS:
    I've got plenty of 404 blocks, including an XC7 block (with crank) if you want to fir 88mm pistons and do a short stroke 1800.
    Graham wallis
    Graham,

    Do you know if the 68-70 model 404 blocks still have the external oil drain on the rear main bearing or are they like the 1800 with an internal drain? If you have one or more like this I am interested (and I guess Ray is too ).

    I want something with an internal drain so I can fit a TI alloy sump straight on.

    As for the XC7, I already have one of those from my 73 South African 404. It wasn't until I pulled the head off that engine that I realised that all 1600s and 1800s made from 1971 onwards were just like the 2 litre with an open deck block. A short stroke 1800 would be an interesting conversion. A short stroke 2 litre would be even more so. Using bored DS liners and Holden six pistons I think this could be done to an XC5/XC6 block and would possibly be allowed in Historic Rallying, since it's in the same capacity class as the original 404 motor (which as you know is 1618cc).

    A 404 with a 2 litre short stroke motor set up with twin 40mm Webers like your 403 would have to be competitive in Histroic rallying wouldn't it?

    Dave

    Advertisement
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  2. #27
    Fellow Frogger! aquinian's Avatar
    Join Date
    May 2003
    Location
    WA
    Posts
    604
    orange17:
    Thanks for the replies so far guys.

    One other option i'd like to explore is the possibility of a later auto box, with the lock up torque converter.
    If you're talking about a four-speed then you'll find some hens' teeth sooner than one of those.

    Regards,
    John Lane.
    Current: 406 Coupe, 504 Sedan

    Previous: 306XSi, 205GTi, 206Gti, 505 V6, 505 Wagon, 504 Sedan, 504 Wagon, 306Gti6, 306XT, 205Si, Citroen XM, Citroen Xantia

  3. #28
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Location
    Burpengary and Murrumburrah, Qld and NSW
    Posts
    9,223
    Dave, I think I have one block lined up, and if cruiserman comes good I will have a second one there. Depending on the model of that car.

    Of course, I have the original out of my 404 (which is still in it, but could be considered out of it if you saw the mental arithmetic I'm doing with various TI engines and BA7/5s in my possession), but I'd rather leave that unmodified in case I ever decided to give the rear axles an easy life again.

    Not that I think that will happen, as you will appreciate...

  4. #29
    VIP Sponsor
    Join Date
    Aug 2000
    Posts
    9,276
    Sorry Dave, the 1800 has an external drain, you can't use the late sump!

    Graham

  5. #30
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Location
    Camden NSW & Selwyn NZ
    Posts
    2,334
    GRAHAM WALLIS:
    Sorry Dave, the 1800 has an external drain, you can't use the late sump!

    Graham
    That's unfortunate. I just checked the cross section drawings of the 1800 and it confirms what you say. It's been over six years since I've looked at an 1800, so obviously my memory was incorrect.

    Oh well, it looks like I'll be using a tin sump then, or maybe I'll get some alloy welding done on a TI sump.

    How much money do you want per 1600 block? I only need a bare block with bearing caps. I'm assuming here that the 2 litre crank will fit the 1600 block. According to the workshop manuals the main bearing internal and eternal diameters and widths are the same, but there may be something which I haven't taken into account. Do you know whether the 2 litre crank will actually fit straight into the 1600 block? If not it looks like I'll be searching high and low for an 1800 engine.

    Dave

    <small>[ 07 August 2003, 08:21 PM: Message edited by: davemcbean ]</small>
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  6. #31
    VIP Sponsor
    Join Date
    Aug 2000
    Posts
    9,276
    Dave,
    The 1800 and 1600 (late) blocks are the same and they both have rear main bearing journals that are smaller than the 2 litre, and the XC7 for that matter!
    Shipping would be the biggest expense with the blocks, complete engines actually.

    Graham

  7. #32
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Location
    Camden NSW & Selwyn NZ
    Posts
    2,334
    GRAHAM WALLIS:
    Dave,
    The 1800 and 1600 (late) blocks are the same and they both have rear main bearing journals that are smaller than the 2 litre, and the XC7 for that matter!
    Ah! That explains why some books quote the rear main journal as different and some quote it as the same. Now I know why!

    So it looks like I'll be looking for an 1800 engine or crank, so I atleast can have an 81mm crank with a solid top block. That was my original idea anyway. I only changed my idea when I found one reference which said the 1600 rear main bearing was the same as a 2 litre, but they must have been refering to an XC7.

    I might end up just deciding to use a 2 litre block. It's not that big a deal.

    Dave

    <small>[ 08 August 2003, 01:25 PM: Message edited by: davemcbean ]</small>
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  8. #33
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Location
    Burpengary and Murrumburrah, Qld and NSW
    Posts
    9,223
    What would be wrong with fitting up a 2-litre main bearing cap, closing it fractionally, and then reboring the rear main?

    Surely that's not a real big job? And it would give you the oil drain you're after...

    I have spare main caps if you need some. Price negotiable...

  9. #34
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Location
    Camden NSW & Selwyn NZ
    Posts
    2,334
    Ray Bell:
    I have spare main caps if you need some. Price negotiable...
    Thanks, I have plenty.

    Don't you have to line bore all 5 bearings at the same type to ensure reliability? If so, wouldn't this mean I'd then have to find some oversize bearings that would fit the overbored block?

    The more machining they do to the block the more chance of them stuffing something up. I'm worried about getting hit for a big bill for a useless engine block.

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  10. #35
    Gone Fishin' Ray Bell's Avatar
    Join Date
    Jun 2001
    Location
    Burpengary and Murrumburrah, Qld and NSW
    Posts
    9,223
    I can see the issue there, Dave... but I'd reckon someone with a lot of nous would do it okay.

    Alternatively, a major grind of the rear main would provide a means of putting the 2-litre crank in the 1600 block if you couldn't find an 1800 block.

    Looks like this is getting more and more complicated, but I wouldn't give up yet...

  11. #36
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Location
    Camden NSW & Selwyn NZ
    Posts
    2,334
    Ray Bell:


    Alternatively, a major grind of the rear main would provide a means of putting the 2-litre crank in the 1600 block if you couldn't find an 1800 block....
    The late 68-70 1600 and 1800 blocks are the same, it's really just the 81mm crank to fit them that's hard to find.

    I'm really thinking now that I'll just use an open top block. Seeing as I plan to light press fit the liners and then have the liner/block unit decked by 1mm, it's going to seal better than a normal 2 litre anyway. The extra rigidity in the floor of the water jacket of the open top block will be nice to have considering the web at the top of 2 and 4 main bearings will be only 4mm thick at one point, due to boring for the bigger liners.

    If I do it this way I also plan to have two small bits of weld material added to the block so that the top of 2 and 3 liners are supported in 3 places like the other liners are. This will be handy when they go to deck the block.

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

Page 2 of 2 First 12

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •