GM Inside - Muscle Cars - Jeep

Support FSC and see no ads! - Click Here
Results 1 to 6 of 6

366 cid chev truck engine

This is a discussion on 366 cid chev truck engine within the Performance forums, part of the General Discussion category; I just scored a 366 chev engine and 4 speed manual trans out of a 1967 school bus. It has ...

  1. #1
    Registered User
    Join Date
    Aug 2004
    Location
    minnesota
    Age
    53
    Posts
    5

    366 cid chev truck engine


    Support FSC and see no ads! - Click Here
    I just scored a 366 chev engine and 4 speed manual trans out of a 1967 school bus. It has 4000 miles on the rebuild. I was told this block compares to a 396 and 454 blocks and then someone else says its a 427 block. I just want to know what intake and exhaust is available for increased performance from stock.

  2. #2
    Registered User TwoTone98Z71's Avatar
    Join Date
    Feb 2004
    Location
    Wyoming
    Age
    30
    Posts
    6,870

    Re: 366 cid chev truck engine

    You should have plenty of torque, we have 366s in a coulple of our farm dump trucks and they haul 18 ton without much problem

  3. #3
    Registered User
    Join Date
    Mar 2003
    Location
    SOUTH LOUISIANA
    Posts
    17

    Re: 366 cid chev truck engine

    They are great torque monsters. Too bad they only share cly.heads like all other big blocks.The 366 and 427 big truck/school bus engines are tall deck motors. If you deside to swap one in be prepared to spend some time making acc brackets, a custom upper radiator hose and mic items.I think a standard water pump bolts up. I helped a friend swap one into a 1 ton dulley, was getting 12 miles to the gallon with 4:10s on the inerstate.

  4. #4
    Registered User
    Join Date
    Jun 2005
    Location
    Outside B'ham
    Posts
    430

    Re: 366 cid chev truck engine

    As Big-98 said, that is probably a tall deck motor. Check the thermostat housing, if there are two thermostats, it is tall deck. The deck is .400 taller to allow a taller piston with four rings, if I remember right. This means that normal intake manifolds will not fit without a spacer at the intake. Also, the distributor is a little longer. Now, you might be able to talk to a good machine shop about some ideas like, 1. Using regular pistons and a .400 longer rod for more compression. 2. A stroker crank (+.400) plus regular pistons to increase displacement. Otherwise, I believe the major components to be interchangable. Just be aware of the probably smaller combustion chamber on a 366. If the chambers are similar, a poor flowing 454 head would be a good flowing 366 head. Hope that helps.

    Ronnie
    "96 ECSB Totalled 11/06 "99 ECSB K1500 5.3 Base Silverado with 320K miles on the clock "01 GMC CCSB K2500 6.0 153K with 19.5" Michelin Medium Duty Tires "95 Cummins TD 310/751

  5. #5
    Resident FSC Canadian CHEV4LIFE's Avatar
    Join Date
    Sep 2004
    Location
    Toronto,Canada
    Age
    26
    Posts
    2,278

    Re: 366 cid chev truck engine

    Also the 366 has forged internals, My uncle used a 366 crank in his 396 that he put into his nova, actually IIRC think he used the rods too, i know the rest of it sits in the shed

  6. #6
    I am "THE" Liar Assclown. astroracer's Avatar
    Join Date
    Jul 2001
    Location
    Byron, MI.
    Age
    58
    Posts
    360

    Re: 366 cid chev truck engine

    Here is a couple of threads over on hotrods that should be interesting reading for you...
    http://www.hotrodders.com/forums/sho...&highlight=366
    http://www.hotrodders.com/forums/sho...&highlight=366

Bookmarks

Posting Permissions

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