Hot!90 big bear 350 with 400 crank any body done it

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Waynesys
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2018/01/19 21:02:00 (permalink)

90 big bear 350 with 400 crank any body done it

As the title says has any body actually taken a crankshaft from a big bear 400 or kodiak 400 and put it in a big bear 350 ive read all kinds of post about people saying it's possible but nobody that has actually done it
post edited by Waynesys - 2018/01/19 21:05:25
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    00_NUTT
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    Re: 90 big bear 350 with 400 crank any body done it 2018/01/20 18:11:44 (permalink)
    Ok first why are you wanting to do this? Time to freshen up the motor? Want more power? Are something different? The cranks themselves are the same but it's the stroke that's the problem. 400 = 71.5mm and the 350 = 64.5mm.

    00_NUTT
    1997 Honda 300 4x4
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    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
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    Waynesys
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    Re: 90 big bear 350 with 400 crank any body done it 2018/01/20 22:12:27 (permalink)
    Well more power and I already have a crankshaft and rod from a storage buy from a 95 kodiak,as im told. My bb 350 is a 90. I know if it does work and I decide to do it I will also need a new cylinder and timing chain from said kodiak. Just seeing if anybody has actually done this before. Most posts I read just used a kit from hotrods or **** but im not inclined to spend 500+ for a little extra power when I can use used parts for less to get the same results
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    00_NUTT
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    Re: 90 big bear 350 with 400 crank any body done it 2018/01/20 22:38:33 (permalink)
    Well they both use the same piston which is an 83mm and knowing pump gas at 11:1 compression is about max. So I don't see anymore gains trying to use all 400 parts. So if it was me I'd just bore up on the stock setup since the 400 is basically the same as the 350.

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #4
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