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Thread: Engine dilemma

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    Engine dilemma

    Engine dilemma

    Hi

    I have a 1967 Fulvia 1231cc Series 1 that i want to go racing with (HSCC) but i cant find FIA papers for this cc .
    We have a couple of options ,
    Repace engine with a 1298cc from a series 2 .Problem being series 2 gearbox wont fit in the series 1 without cutting into bodywork .Can i put a series 1 gearbox onto a series 2 engine?
    The other option is to bore out the 1231 to 1298 .I have been told that the 1231 is quite rare.
    advice appreciated
    jonothan

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    Legendary Lancista 1,6 HF's Avatar
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    Re: Engine dilemma

    The 1231cc (Type 818.202) was not homologated. But it used the same basic block, V-angle, and 69.7mm stroke as the 1298cc (Type 302 / 303), so a 202 can be bored from 75mm to 77mm without any issues. Alternatively, an S1 gearbox can be mounted to an S2 1298cc by swapping the bellhousing and/or the rear engine flange.
    Ed Levin
    Fulvia 1,6 HF

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    Re: Engine dilemma

    The previous owner of my rallying Fulvia 1.3 coupe coupled an 818 303 engine to a four speed gearbox. I have had no problems with the set up.

    I'm just finishing a rebuild of engine and bodyshell and hope to get back in competition next month.

    Go for it

    The more Fulvias on stage and track the better!!

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    Legendary Lancista Fulvia-hf's Avatar
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    Re: Engine dilemma

    You have several options all costing time and money. If you want to keep the 4 speed box, it might be cheaper to search for a 1300 S1 engine as boring and buying 1300cc pistons is quite expensive. On the other hand if you want to go racing you might want forged high CR piston anyway so you spending this on your original engine is no bad idea. The advantage of that route is that it is easier to find a set of old stock 77mm racing pistons for a fair price. Most rebuild 1300 engines use oversize pistons so old stock oversize is scarce and modern production pistons are expensive at about 800euros per set. Your small bore engine block is perfectly suitable for stock size 77 pistons.
    Be aware that a change of bell house means a change of flywheel and starter.
    My bet would be to search the internet for 77 size forged old stock pistons and have your 302 75mm engine block bored out. Just don't forget to fit modern rings to those pistons. Apart from a few extra HP due lower friction the oil consumption will be drastically reduced.
    Cheers,
    William

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    Re: Engine dilemma

    Hi

    Many thanks for the information , we have just removed the engine and still not 100% sure what engine we have of our 1967 S1 Fulvia.

    any input would be appreciated .


    The Block, 818 302 2248387
    The Head 818 100 2203520
    The Flywheel 818 202 10798

    Our log book and import documents state a 1216cc
    many thanks
    Last edited by Jonothan; 10th June 2019 at 04:40 PM.

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    Legendary Lancista Taddraughn's Avatar
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    Re: Engine dilemma

    Quote Originally Posted by Jonothan View Post
    Hi

    Many thanks for the information , we have just removed the engine and still not 100% sure what engine we have of our 1967 S1 Fulvia.

    any input would be appreciated .


    The Block, 818 302 2248387
    The Head 818 100 2203520
    The Flywheel 818 202 10798

    Our log book and import documents state a 1216cc
    many thanks
    Those combination of numbers should definitely be the 1231cc engine. The 1216 would have the 818 100 head, but not the 302 block.

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    Legendary Lancista Marnix's Avatar
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    Re: Engine dilemma

    Quote Originally Posted by Jonothan View Post
    Hi

    Many thanks for the information , we have just removed the engine and still not 100% sure what engine we have of our 1967 S1 Fulvia.

    any input would be appreciated .


    The Block, 818 302 2248387
    The Head 818 100 2203520
    The Flywheel 818 202 10798

    Our log book and import documents state a 1216cc
    many thanks
    As said just before this thread, that is a 1231cc engine (the 1.2 was first made with an "upgrade" from a 1.1 engine towards the 1216, but later by a "downgrade" of a 1.3 engine to 1231). 1967 would have been most likely already the 1231 engine anyway. Does the paperwork explicitly state 1216, or just 1.2? At the back of the crankcase, above the opening where the starter motor fits in the engine, should normally be stamped the engine type and serial. For a 1216 engine, type was 818.130, for a 1231 engine it was 818.202.
    It is always possible the original engine has been rebuild/replaced from 1216 to later 1231 standards.
    Lancia Fulvia 2C 1964
    Lancia Fulvia Coupe Rallye 1,3 1968
    Porsche 924 1979
    Alfa Romeo 33 1.4IE 1993

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