Just joined? Please introduce yourself.
Classic Edge Designs, LLC Prime Custom Cars, LLC MadMooks
Results 1 to 5 of 5

Thread: 327 H-P Ram Horn to 283 CI

  1. #1
    Registered Member
    Join Date
    May 2018

    Member #:3799
    Posts
    12

    327 H-P Ram Horn to 283 CI

    Can someone tell me if these re-production 60"s 327 high performance ram horn manifolds will bolt right up to a 1957 283? If so what do you think the horse power gain would be, if any? Would you need larger than stock 1957 exhaust pipes to the back of the car to get the gain?

  2. #2
    Registered Member
    Join Date
    Apr 2012

    Member #:571
    Posts
    3,781
    It should bolt right up to the head. You should at least increase the pipe size up to or through the muffler. Power increase will be minimal on a stock 283, maybe a few hp on one that's modified with a cam and good heads.

  3. #3
    Registered Member scorpion1110's Avatar
    Join Date
    Jul 2017

    Member #:3477
    Location
    Mount Airy, MD
    Posts
    150
    I pulled the headers on my 283 in my 55 and went with ramshorns. A couple of points;

    I used 2 inch horns but used an adapter to go to 2 1/2 coming right off the flange
    I had to make my own head pipes and built them to bolt in right at the header flange to be able to switch back to headers if I wanted
    I used a straight drop on the passenger side and an angled dump on the driver. It allows nearly a perfect clearance of the steering box on the 55.
    I blasted the ramshorns and then used a rub on renewable dressing called calyx. (available from Eastwood.)

    I found the ramshorns kept the heat way down, and allowed me to mover the alternator to the passenger side via Alan Grove brackets which I think work well.

    Scorp
    Attached Images Attached Images
    Scorpion1110

    Rides:

    1955 Chevy 2-door Wagon
    1970 Honda Trail 70
    2004 Tacoma 4x4

    I lost my best friend on 10/3/2018. Rest in Peace Dear Lucy. I miss you everyday.

  4. #4
    Registered Member scorpion1110's Avatar
    Join Date
    Jul 2017

    Member #:3477
    Location
    Mount Airy, MD
    Posts
    150
    Weird. First time pics went sideways. What just happened?
    Scorpion1110

    Rides:

    1955 Chevy 2-door Wagon
    1970 Honda Trail 70
    2004 Tacoma 4x4

    I lost my best friend on 10/3/2018. Rest in Peace Dear Lucy. I miss you everyday.

  5. #5
    Registered Member
    Join Date
    May 2012

    Member #:625
    Posts
    2,235
    I wish that I would have used them on my 56l

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
  •