Holley SB-Chevy Pro-Jection Manifolds


Holley
Holley SB-Chevy Pro-Jection Manifolds

Product images may differ from actual product appearance.

RPM Range: Idle-6000

Designed for use with 2-bbl Pro-Jection throttle bodies. Utilizes a high rise/dual plane design, Idle-6000rpm power band, features exhaust heat cross-over, EGR provision and late model alternator and A/C mounts. Not intended as an O.E. replacement for 1987-later fuel injected trucks.
Manifolds

510-300-49
Pro-Jection 2-BBL Manifold
  • 1957-86 all models
  • 1987-up w/aluminum heads.
    More info on Holley 300-49

    Fits Applications
    Installation Instructions for Holley 300-49
    		• $195.99
    Ships
    02/16/12

    		510-300-66
    		Pro-Jection 2-BBL Manifold
  • 1987-up Cast Iron Heads
    More info on Holley 300-66

    Fits Applications
    Installation Instructions for Holley 300-66
    		• $195.99
    Ships