AFR 1137/1138 SBC 245/70 OR 80CC .800 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE injection 5 Minimum Roller 3500 -

5 Minimum                   Roller                3500 - 7000        Oval Track / Drag Race / Pro Street

800      0

400 INTAKE    117               184                256               328               391              435               453

PORT    VOLUME      INT

250" Raised Exhaust

AFR 1137/1138 SBC 245/70 OR 80CC .800 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE injection 5 Minimum Roller 3500 -CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Our largest and most powerful 60 40 head for the small block Chevy features 100% CNC machined intake runners, exhaust ports and combustion chambers. Capable of flowing 350 CFM at 0. 800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60 40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry and extra machining for