Does GM make a small bore ls3 style head?
LSX-L92 small bore head # 19201807
-2.000 intake valve & 1.550 exhaust valve
-15 deg valve angle
-Minimum 3.890 bore
-250cc intake ports, 80cc exhaust ports, 65cc combustion chambers
-Uses LS3 rocker arms
No pricing yet, but imagine they won't be cheap.






