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Automatic to manual gearbox .are the engine the same as if it was automatic or manual

Discussion in 'General SAOCA Discussions' started by molly2010, Sep 29, 2020.

  1. molly2010

    molly2010 Silver Level Sponsor

    Are the engines for alpine Specified for automatic gearboxes or manual gearboxes is it the standard engine that came on the alpine
  2. DanR

    DanR Diamond Level Sponsor

    The engines are the same for all Alpines (within the Series) and they bolt to the different transmissions whether manual (4 sp) or auto (BW35).

    The transmission mount brackets and the mount positions vary between the two (2) different types on transmissions (Manual/Automatic).

    The Standard (manual) had 4 bolts flanges each side on the floor panel and the Automatic (BW35) has three (3) bolt flanges.

    I have pictures of the differences between the two different brackets and the floor panel mount holes. I will post later if need be.
  3. Alpine 1789

    Alpine 1789 SAOCA President Diamond Level Sponsor

    Two other things to consider:
    1. The automatic was only offered on the SIV and while the SIV engine was the same displacement as the S3, it was slightly different from the SI, SII and SV. But, as Dan said, there were no engine differences between the engines in the SIV manual and the SIV automatic.
    2. I may be wrong on this, but am pretty sure the SIV automatic only came with a single carb. So, while not an engine difference per se, it is another thing that differentiated the manual and the automatic cars.
  4. phyrman

    phyrman SAOCA Secretary Diamond Level Sponsor

    The BIG difference is in the fly wheel , the BW35 fly wheel was a ring with the torque converter welded to it!
    They do all mate up the same regardless
  5. Barry

    Barry Platinum Level Sponsor

    The BW35 automatic transmission will not fit in the stock transmission tunnel of a manual transmission Series Alpine.
  6. alpine_64

    alpine_64 Donation Time

    Jim.. The siv only had the compund solex and cast manifold be it ST , GT or auto... The GT had a more restrictive air filter to keep it quieter.. So engine spec is the same manual or auto.

    @molly2010 the auto also has a wider trans tunnel and the manual trans mount wont work for the auto tunnel.. You'll have to make your own
  7. DanR

    DanR Diamond Level Sponsor

    I have a spare tranny mount for the Manual and one for the BW35 Alpines should you need one.

    And my V6 Conversion transmission mount brackets will work of several types of transmissions manual or automatic.

    As Barry and Michael both stated, the BW35 transmission tunnel is a bit wider that the stock manual Alpine.

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