Register now to get rid of these ads!

How Can I Tell If I Have a True 327???

Discussion in 'The Hokey Ass Message Board' started by bmart, Jan 16, 2012.

  1. HEATHEN
    Joined: Nov 22, 2005
    Posts: 7,592

    HEATHEN
    Member
    from SIDNEY, NY

    250 HP 327="power pack" heads, small 4 bbl (either Rochester 4GC or Carter WCFB) and exhaust manifolds with 2 inch outlets

    300 HP 327="double hump" heads (with 1.94/1.50 valves), larger 4 bbl (Carter AFB on corresponding cast iron intake manifold), and exhaust manifolds with 2.5 inch outlets

    Those specs cover '62-'65. In '66-'67, there was but one 327 in full size cars; it had double hump heads, a variety of 4 bbl carbs (AFB, AVS, Holley, or Rochester Quadrajet), and the 2 inch outlet exhaust manifolds, factory rated at 275 hp.
     
  2. chubbie
    Joined: Jan 14, 2009
    Posts: 2,294

    chubbie
    Member

    the 283 "powerpack" had a TPEE identifier on the front of the head (same place the double humps can be found) right or wrong any engine with this identifier was called a POWERPACK head a lot of 327"s had this head
     
  3. Larry T
    Joined: Nov 24, 2004
    Posts: 7,679

    Larry T
    Member

    It seems like most of the 327's I ever messed with had a "double hump" 461 or 462 head of some sort on it. Some of them were high performance, some of them weren't.
    Larry T
     
  4. 201
    Joined: Dec 17, 2002
    Posts: 344

    201
    Member

    With all the work everybody is doing to figure out the casting numbers, I tried to go on the Mortec site, but it won't open. Must of dissapered in cyber space!!!
    Anyone have another site that decodes SBC casting numbers??
     
  5. Russco
    Joined: Nov 27, 2005
    Posts: 4,131

    Russco
    Member
    from Central IL

    The last 3 327's I tore down all had 461 humper heads 2 were out of chevelles one out of an Impala they were all 1965 or 1966 motors. all 3 had H coded suffix's
     
  6. Larry T
    Joined: Nov 24, 2004
    Posts: 7,679

    Larry T
    Member

    Ya just gotta know the secret handshake. :)

    http://web.archive.org/web/20080518030656/http://www.mortec.com/
     
  7. 201
    Joined: Dec 17, 2002
    Posts: 344

    201
    Member

    Thanks Larry T, I edited my Mortec link. Internet Archives to the rescue again!! I go there for their live concert archives all the time. Wher else can you find 8,000 Great. Dead concerts, 500 New riders, 500 Donna the Buffalow, even Warren Zevon??? Makes my eyes red just thinking about it!!
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.