Racer Brown!
Camshaft Technology

Call Factory during operating hours for a consultation on the best cam for your application.
Racer Brown Engineering 410-866-7660 Mon-Friday 2pm - 6pm EST.
Questions? Call 541-942-5920 or email sales@4secondsflat.com Mon-Thursday 8am - 3pm PST.

  • These are only a few samples of the hundreds of available specialty grinds from Racer Brown Cams.
  • This chart is to help you understand how all the components of your combination work together and intended only for reference.
  • Comp Ratio is based on STEEL Heads add 1 full point of Compression for Aluminum heads, select fuel Octane level by compression ratio.
  • SSH - Super Street Hydraulic
  • STH - Super Tork Hydraulic
  • SS - Super Street Mechanical
  • ST - Super Tork Mechanical
  • Grind #:Duration @50:Intake
    1.6 Rocker Arm:
    Exhaust
    1.5 Rocker Arm:
    Initial timing:Comp Ratio:Gear:Convertor Min:
    SSH-23 224 485 455 16-18 8.5-9.0 3.23-3.55 2000-2200
    SSH-24 232 501 480 16-20 8.8-10.0 3.55-3.91 2400-2800
    SSH-25 238 517 485 18-22 8.8-10.0 3.73-4.10 2600-3200
    SSH-26 249 517 485 18-22 9.5-11.5 3.91-4.56 3200-4000
    SSH-44 242 543 510 18-22 9.5-11.0 3.91-4.56 3200-4000
    SSH-45 213 445 417 14-16 8.2-9.0 3.23 2000
    SSH-50 222 509 477 16-18 8.8-9.0 3.23-3.55 2000-2200
    SSH-51 226 506 474 17-19 8.8-9.2 3.23-3.55 2200-2400
    ST-2 218 480 450 16-18 8.5-9.5 3.23-3.55 2000-2200
    ST-8 256 474 445 20-24 8.8-9.8 3.55-4.56 3000-4000
    ST-12 257 512 480 20-24 9.0-10.8 355-4.56 3000-4000
    ST-14 236 519 486 18-22 8.8-9.8 3.23-3.91 2500-3500
    ST-15 240 517 485 20-24 10.5-12.5 3.91-4.56 3000-4500
    ST-21 254 554 520 22-26 10.5-13.0 4.10-4.88 3500-4500
    ST-22 242 543 509 20-24 9.5-11.0 3.73-4.56 3200-4200
    ST-23 246 536 502 20-24 10.0-12.0 3.91-4.56 3200-4500
    * Extended List from Racer Brown Engineering

    These profiles can be ground into most GM, Ford and Mopar V-8 cam cores.

    GM 330 HP Crate engines utilize special grinds and are not listed here.

    We have the solution to these motors and we're not going to publish the numbers.

    This is a very general rule of thumb Consult with Factory for correct cam for your application.

    Centerlines are calculated by application.

    Installed position is selected and ground into the cam at the factory for your application.

    Gross lift is calculated using Racer Brown 1.6/1.5 Rocker Arms, these cams will build optimum power with the 1.6/1.5 Rocker arm ratios.

    Custom Grind Not Listed here:

    STX and STR Roller cam grinds

    EH Mild Hydraulic and economy grinds

    Other special profiles include BMW, Acura, Honda, Studebaker, AMC, Caddy, Olds, Buick, Model A's to Vipers.

    Regrind old cores to stock or performance.

    Have these specs ready before calling factory

    Call for assistance 410-866-7660