2 FloTek Big Block Chevy 315/121cc Complete .570 Flat Tappet Or .630 Hyd. Roller

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. 315-5056FT/HR MUST SPECIFY Flo-Tek Recommended Setup: Header – Based on Chassis-2 1/8”Rocker Arms – Isky Roller Rockers 204-96 1.75:1 or EquivalentIntake Manifold – Victor JR or Super Victor A powerful, out-of-the-box cylinder head design matched with an outstanding, unbeatable casting technology. We are here to tell you…this BBC head does just that! FLO-TEK Aluminum Cylinder Heads are a great choice for out of the box horse power. These FLO-TEK Cylinder thick Deck Design and High Capacity water jackets that makes them a reliable choice for street or strip applications. The FLO-TEK BBC 315 takes stock pistons and has raised valve cover rails. The BBC 315 Exhaust Port location is raised .360.  Offered at .570, .630 lift, .870,  and .900 lift. Specifications, Features & Optional Supporting Components: Head Bolt Torque 75 Ft Lbs w/ oil Rocker Stud Torque 50 Ft Lbs w/ oil Intake Port Gasket Fel Pro 1252-3 (320) Fel Pro 1211 (360) Exhaust Port Gasket Fel Pro 1404 Head Gasket Fel Pro 1017-1 (4.500) 1057 (4.630) Head Bolts & Studs ARP 135-3703 (12pt) 135-3606 (6pt) 235-4303 (Stud) Stud Girdle Harland Sharpe G1114 (7/16) Suggested Manifold Victor Jr, Super Victor Spark Plug Starting Range 14mm (.750) Accel #416 Intake Port Volume 315 cc Exhaust Port Volume 121cc Combustion Chambers 121cc Max Spring Pocket Diameter 1.725” O.D. Spring Kit .570 Spring Kit .630 PSK236FT   1.53" Single W/D PSK637-1-7 1.50” Dual W/D Spring Kit .870 PAC-1248,053-587-1248 1.64” Triple Spring Kit .900 PAC-1228,053-587-1248 1.625” Double Basic Package Components: Intake Valve .570/.630 2.250 Stock Length -P3120HPC Exhaust Valve .570/.630 1.880 +.100 -P4355-100 Intake Valve .870 2.250 + 250 -P11856JF Exhaust Valve .870 1.880 +.200 -P4355-200 Intake Valve .900 2.250 + 250 -P11856JF Exhaust Valve .900 1.880 +.200 -P4355-200 Valve Spring .570 Valve Spring .630   CL 147# @ 1.900, OP 330# @ 1.33 C.BIND 1.120 CL 178# @ 1.900, OP 460# @ 1.27 C.BIND 1.170 Valve Spring .870 CL 332# @ 2.100, OP 930# @ 1.23 C.BIND 1.130 Valve Spring .900 CL 280# @ 2.100, OP 846# @ 1.20 C.BIND 1.100 Retainers Hardened Chrome Moly Valve Locks .570/.630 7 Degree Valve Locks Valve Locks .870/.900 10 Degree Valve Locks Rocker Stud Must have Clearance for Valve Spring Retainers Valve Seals Viton Positive Seals Spring Cup Hardened Steel Cups Intake Valve Seat Powder Metal Exhaust Valve Seat Powder Metal Bronze Valve Guides Phosphor Bronze *Assembled heads come with 7/16 rocker studs & 3/8 guide plates. Also Available: Chevy BBC 315 Bare 315-500 MAKE OFFER Chevy BBC 315 .870 Lift Assembled 315-5058 MAKE OFFER Chevy BBC 315 .900 Lift Assembled 315-5057 MAKE OFFER SHIPS IN THE LOWER 48 STATES FREE! CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER   Warning: May cause cancer and reproductive harm.