MBR Main Bolt and Stud Torque

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by GumBGone, Aug 2, 2015.

  1. GumBGone

    GumBGone Member

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    I'm reassembling Minor Bros engine for the first time and need the torque setting for the main cap bolts and studs. Please don't say contact Bob. I purchased the manifold to pan from him and haven't received any specs and don't expect to. I can use a stretch gauge for the rods and was told the head go to 220 lbs. Thanks
     
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  2. TOL

    TOL Active Member

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    Weird question, but if he sold you the motor, why would he not provide tech support for such basic questions?
     
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  3. Sportsman

    Sportsman TA/FC

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    125 ctr
    90-95 3 ctr sides
    100 side ends if studs
     
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  4. 2055

    2055 New Member

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    2055 MBR/Arias

    Could someone please make a list of all torque specs for a MBR / Arias and post them! Thanks
     
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  5. NITROBANDIT1

    NITROBANDIT1 LOST IN SPACE

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    Fontana specs

    I am currently making a builders guide to arias/Fontana/mbr engines for dummies and should be done soon
    anybody that wants a copy pm me and ill put you on my list. it pertains to the 8.3 with cast and billet blocks,
    and even some of the fat head stuff. lots of pictures and as much info that I can gather. this is in most part
    due to the lack of personal phone service from that particular engine builder. hope this helps.


    here are some specs I have from a reliable source for the billet mbr block,
    the cast fontanas are different.

    main studs 135 ft lb w/ oil
    side main bolts 95 ft lb w/oil
    rods 90 ft lbs w engine oil
    3 cam bolts 3/8-16 55 ft lb w/Loctite
    7 cam gear .400 long 5/16-18 26ft lb w Loctite
    idler stud 125 ft lbs w Loctite
    5/8 head studs 225 ft lb
    crank bolt 265 ft lbs
    flywheel bolts 120 ft lb w/loctite
     
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  6. bandit496

    bandit496 Member

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    I have a cast Arias and the main and side bolt torque specs are that (they are stamped on the pan rail). My KB/Olds are slightly less than those numbers. JW
     
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  7. GumBGone

    GumBGone Member

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    Thanks allot for the Info

    Scott
     
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  8. lucky2wd

    lucky2wd Member

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  9. lucky2wd

    lucky2wd Member

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    Have you got this done? I would be very interested in this, thanks
     
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