CID LS 12D Oval Port BE Cylinder Heads suit 4.125" Bore

LS Inline 450 CFM Oval Port BE Cylinder Heads

The most powerful Inline LS Cylinder Heads available , having made over 1100HP and 740Ft/Lb NA from 457". Designed for high HP applications approaching .900" or more valve lift. 

One pair of Bare 12 Degree Inline LS Oval Port BE cylinder heads CNC ported and valve jobbed (55 Degree valve seats) with CHE valve guides and CHE Bronze valve seats. Raised round exhaust port exit and exhaust requires a minimum of a 2" header. Exhaust port and header flange bolts raised 1/8"