Hot Rod Girl

• Rockcrusher — Muncie M22 4-speed transmission so called because of the audible differences in operation between the model M-22 and its lower strength but quieter cousin, the M-21
• Rocket — Oldsmobile, in particular their early V8s
• SB — small-block (Chevy)
• Shoebox — '49-'54 Ford (for the slab-sided apppearance)