Part # 721305600
Flo-Tek 305-600 Assembled BBC Cylinder Head, 320cc, Roller
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- This powerful, out-of-the-box cylinder head is design matched with an outstanding, unbeatable casting technology
- Heads have a thick deck design and high capacity water jackets that makes them a reliable choice for street or strip applications
- Will accept stock pistons and features raised valve cover rails to reduce the chance of valve cover gasket leaks
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$725.00
each
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Product Summary
396, 402, 427, 454, Assembled Cylinder Head Style
- This powerful, out-of-the-box cylinder head is design matched with an outstanding, unbeatable casting technology
- Heads have a thick deck design and high capacity water jackets that makes them a reliable choice for street or strip applications
- Will accept stock pistons and features raised valve cover rails to reduce the chance of valve cover gasket leaks
- Exhaust port location is raised .500"
- Features 320cc intake runners and 128cc exhaust runners
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Key Specs
| Cylinder Head Style | Assembled |
| Material Type | Aluminum |
| Finish | Natural |
| Combustion Chamber Volume | 133cc |
| Intake Runner Volume | 320cc |
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Need To Know
This Product Will Ship Free
Quick and Easy Returns
Details
Details
Flo-Tek Recommended Setup:
- Header – Based on Chassis - 2-1/8”
- Rocker Arms – Isky Roller Rockers 204-96 1.75:1 or Equivalent
- Intake Manifold – Victor JR or Super Victor
A powerful, out-of-the-box cylinder head design matched with an outstanding, unbeatable casting technology. FLOTEK Aluminum Cylinder Heads are a great choice for out of the box horsepower. These FLOTEK Cylinder Heads offer a thick Deck Design and High Capacity water jackets that makes them a reliable choice for street or strip applications.
The FLOTEK BBC 320 takes stock pistons and has raised valve cover rails. The BBC 320 Exhaust Port location is raised .500".
Valve Springs:
PSK-236-1-7 Up to .600" Lift CL #147 @ 1.90 OP #365 @ 1.22 C/BIND 1.12 O.D 1.53” Single W/D I.D. 1.12
Specs
- 2.250 + .250 Intake Valves
- 1.880 Stock Length Exhaust Valves
- 320cc Intake Runners
- 128cc Exhaust Runners
- 133cc Combustion Chambers
- Viton Positive Seals
- Hardened Chrome Moly Retainers
- Manganese Bronze Intake & Exhaust Guides
- Rocker Studs & Guide Plates included - must be torqued during the installation process, must have clearance for valve spring retainers
- Sold individually
- Head Bolts: ARP-135-3703 (12pt) & ARP-135-3606 (6pt)
- Head Studs: ARP-235-4303
- Head Gasket: Fel-Pro 1017-1 (4.500) & Fel-Pro 1057 (4.630)
- Stud Girdle: Harland Sharpe G1114 (7/16)
- Intake Gasket: Fel-Pro 1252-3 (320) & Fel-Pro 1211 (360)
- Exhaust Gasket: Fel-Pro 1410
- Spark Plug: 14mm .750 reach, Recommended starting point Accel # 416
- Head Bolt Torque Specs: 75 ft/lbs w/ oil. Coat head bolts and rocker studs with thread sealant.
- Rocker Arm Stud Torque: 50 ft-lbs w/ oil
- Guide Plate: Dart 2700123-4/PC-4247
Specifications
Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 305-600 |
| Brand | Flo-Tek |
| Cylinder Head Style | Assembled |
| Material Type | Aluminum |
| Finish | Natural |
| Combustion Chamber Volume | 133cc |
| Intake Runner Volume | 320cc |
| GENERAL | |
| Exhaust Runner Volume | 128cc |
| Combustion Chamber Volume Range | 130cc - 139cc |
| Intake Runner Volume Range | 320cc - 329cc |
| Exhaust Runner Volume Range | 120cc - 129cc |
| CNC-Machined Runners | No |
| Spark Plug Style | Angle |
| Intake Port Shape | Rectangle |
| Exhaust Port Shape | D-port |
| Intake Valve Diameter | 2.250" |
| Intake Valves Included | Yes |
| Exhaust Valve Diameter | 1.880" |
| Exhaust Valves Included | Yes |
| Valve Spring Included | Yes |
| Valve Seat Material | Powdered Metal |
| Valve Stem Seals Included | Yes |
| Valve Stem Seal Type | Positive Stop |
| Valve Stem Seal Material | Viton |
| Valve Guides Included | Yes |
| Valve Guide Material | Manganese Bronze |
| Locks Included | Yes |
| Lock Style | 7 Degree and 10 Degree |
| Retainers Included | Yes |
| Retainer Material | Chromoly Steel |
| Guideplates Included | Yes |
| Rocker Arms Included | No |
| Sold in Quantity | Each |
| GTIN Code | 850134007686 |