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Hot Rods '55 Chevy new heads and cam swap video

Discussion in 'The Hokey Ass Message Board' started by So-cal Tex, Dec 21, 2015.

  1. So-cal Tex
    Joined: Aug 24, 2005
    Posts: 1,384

    So-cal Tex
    Member

    Well it was time to upgrade the heads and cam shaft in the old '55. I started out with a flat top 355 ci , 10:1 compression and Since I like the vintage look I went with double hump 461 casting with 2.02 valves, mild port and polished, double valve springs, .510 lift Engine Pro cam shaft, early Vette dual plan intake, early vette valve covers, 750 edelbrock carb, headers and \'55 chevy and RUGRAT.jpg 4spd M-22 with 4:11 posi makes for a fun ride....here is how the new combo sounds and next will be the drive...

    http://www.youtube.com/watch?v=PCoZelgil1s
     
  2. Smoothy
    Joined: Jun 18, 2015
    Posts: 338

    Smoothy
    Member

    Sounds good! I'm doing a similar build for my engine at the moment. Going with the comp cams 305h. .555/.555 lift and 462 2.02/1.60, Victor jr intake, and stock rod, piston, and bore for now to keep it at around some where between 9.5/9.8:1 for pump gas. My machinist who does build race engines for a living, said this combo should make around 400/425 hp. Are you thinking the 350 horsepower is at the rear wheels or flywheel?
     
  3. cktasto
    Joined: May 31, 2009
    Posts: 313

    cktasto
    Member

  4. 270283
    Joined: Jun 11, 2006
    Posts: 423

    270283

    My favorite 55's are the ones that embody the 60's look. Your car nails it! I'm all set to go for that ride now!
     

  5. Sounds and looks great. Nice job!!
     
  6. So-cal Tex
    Joined: Aug 24, 2005
    Posts: 1,384

    So-cal Tex
    Member

    Smoothy I ran the desk top dyno program with my combo and it said about 380hp so I am thinking 350hp to the wheels and it pulls hard to 6,000 RPM where the limiter is set.
     
    Smoothy likes this.
  7. 40fordtudor
    Joined: Jan 3, 2010
    Posts: 2,503

    40fordtudor
    Member

    That's a kickass combination-----
     
  8. falcongeorge
    Joined: Aug 26, 2010
    Posts: 18,341

    falcongeorge
    Member
    from BC

    My 355 is a point and a half more compression than that, 246@050 solid, perf. RPM heads and intake, 750 dp, it dynoed right at 400hp. Theres dyno HP, and then theres Emap publishing HP.
     
    Smoothy and Butch M like this.
  9. Butch M
    Joined: Oct 14, 2008
    Posts: 1,634

    Butch M
    Member

  10. YJ4000
    Joined: Feb 5, 2009
    Posts: 288

    YJ4000
    Member

    Sounds great. What did you use for exhaust?

    Ryan.
     
  11. So-cal Tex
    Joined: Aug 24, 2005
    Posts: 1,384

    So-cal Tex
    Member

    2 1/2 inch with ebay knock off flowmasters exiting in front of the back tire, nothing special just wanted it to look like it did in the '60's
     
  12. scoggman
    Joined: Feb 25, 2009
    Posts: 478

    scoggman
    Member

    Super cool!!! Did you have to do anything to the double humps to get that much lift out of them?
     
  13. So-cal Tex
    Joined: Aug 24, 2005
    Posts: 1,384

    So-cal Tex
    Member

    Nope, with flat top pistons no modifications were needed to get .510 lift, if I went to a dome piston some fly cutting would be required because of the 64cc camber heads.
     
  14. scoggman
    Joined: Feb 25, 2009
    Posts: 478

    scoggman
    Member

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