12480034 - GM Performance Parts Phase 3 Bow Tie SB-Chevy Cylinder Heads Details

The Phase 3 Bow Tie Head Casting, 809-12480034, replaced the Phase 2 casting in 2000. This casting was only changed to add machining stock for the machined rocker cover rail. Universal spark plug seats are also provided in this head.

Technical Notes: This cylinder head does not include rocker studs or guide plates.