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will my engine combo work?

Discussion in 'The Hokey Ass Message Board' started by screamn355, Sep 3, 2012.

  1. screamn355
    Joined: Nov 10, 2011
    Posts: 13

    screamn355
    Member
    from el paso

    a fresh 1969 350 block std bore stock crank and rods
    11.5 pistons with srp sportsman rings fresh 291 heads(2.02/1.60)64 cc with screw in studs and guide plates
    harlnd shard roller rockers comp nostalgia plus cam Rpm Range: 2300-6900
    Advertised Duration: 284 Int. / 291 Exh.
    Duration @ .050: 247 Int. / Exh.254
    Valve Lift: .504 Int. / .498 Exh.
    Lobe Sep. Angle: 112
    Valve Setting: .012 Int./.012 Exh.

    vic jr intake and holley 750 dbl pumper
    hei dist.

    its going in a 66 chevelle with a th350 3500 stall and a 12 bolt 4.11 gears
    im just wondering how it will run and drive. im looking for a car to drive around town and take to the track and run a decent time (around low 13s high12s) let me know what u guys think thanks
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 57,977

    squirrel
    ALLIANCE MEMBER

    sounds good! now find a forum that talks about muscle cars, and you'll be all set. We do older stuff here, sorry.
     
  3. screamn355
    Joined: Nov 10, 2011
    Posts: 13

    screamn355
    Member
    from el paso

    lol i didnt know 454s were old
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 57,977

    squirrel
    ALLIANCE MEMBER

    The car.....read the rules for the forum....

    but yeah, it's a laugh
     
  5. Deuces
    Joined: Nov 3, 2009
    Posts: 25,587

    Deuces

    1970 and up!
    That's why we make 427's out of those...
     
  6. sunbeam
    Joined: Oct 22, 2010
    Posts: 6,337

    sunbeam
    Member

    Were there rat motors in 64?
     
  7. Cortney
    Joined: Aug 11, 2008
    Posts: 375

    Cortney
    Member

    Don't think so. 396 came out in 65. Far as I know, 409 was the "rat" motor back then as far as Chevy goes anyway.
     
  8. Get over it we are still not a muscle car site.

    Now as for the winning combo, it will run fine, don't know how long and it will probably not run on anything that you can buy at the service station in Calif. or anywhere else in the united states.
     
  9. MATACONCEPTS
    Joined: Aug 7, 2009
    Posts: 2,069

    MATACONCEPTS
    BANNED

    You didn't mention anything about the matching valve springs. Hope you got that covered.
     
  10. S_Mazza
    Joined: Apr 27, 2011
    Posts: 363

    S_Mazza
    Member

    The big cam may help to tame the high compression a little bit. IE, static compression is pretty high, but dynamic compression including valve overlap, etc. will be lower.

    So premium 93 or 94 octane might work.
     
  11. Model A Vette
    Joined: Mar 8, 2002
    Posts: 1,075

    Model A Vette
    Member

    Check the valve to piston clearance. It may be close with 11:1 and a high lift cam.
     
  12. mustang6147
    Joined: Feb 26, 2010
    Posts: 1,847

    mustang6147
    Member
    from Kent, Ohio

    Cam looks pretty mild to me...
     
  13. Model A Vette
    Joined: Mar 8, 2002
    Posts: 1,075

    Model A Vette
    Member

    Valve Lift: .504 Int. / .498 Exh.

    I think that is a high lift cam for a '69 350.
    In any case I would check valve clearance because you get 11.5:1 by having domed pistons.
     
  14. S_Mazza
    Joined: Apr 27, 2011
    Posts: 363

    S_Mazza
    Member

    I was mostly referring to the duration. Seems like a good amount of overlap, which would bleed off cylinder pressure and help avoid detonation. A relatively high-rpm cam.
     

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