AFR's 245cc LS1/LS2/LS6 "Competition" ported heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, Titanium retainers and high quality components throughout. Recommended for race applications or radical "Pro Street" style builds with displacements up to 454 cubic inches, operating up to 6800 RPM. Requires minimum 4.000 bore size for intake valve clearance. AFR heads are available bare (without parts).
THESE PRODUCTS ARE ILLEGAL TO OPERATE ON ANY PUBLIC HIGHWAY. THIS MEANS ANY PUBLIC PAVED OR UNPAVED ROADWAY OR IN A PUBLIC PARK. THESE PRODUCTS ARE ONLY LEGAL IF USED ON A DEDICATED RACING VEHICLE. VIOLATION ARE SUBJECT TO A MAXIMUM PENALTY OF $37,500 PER VIOLATION PER VEHICLE, REVOCATION OF REGISTRATION BY DMV, LOSS OF USE ON PUBLIC RIGHT OF WAYS AND PROOF OF CORRECTION OF THE TAMPERING.
Footnotes
- Stock GM Rocker Arms - GM Rocker Arms are not designed/engineered to accommodate aftermarket cams or higher spring pressures. At a minimum AFR recommends using Bushing Trunion Kit. Other available options are aftermarket kits from Yella Terra, Scorpion or Hardland Sharp. Without the proper parts you will experience accelerated guide wear.
- Does not have provisions for 1997-1998 perimeter bolt valve covers, conversion kits available.
![AFR 245cc LS "MONGOOSE" 15 Degree Cylinder Heads [73cc] (Assembled)](images/no_picture.gif "AFR 245cc LS \"MONGOOSE\" 15 Degree Cylinder Heads [73cc] (Assembled)")
