Flo-Tek 305-600 Assembled BBC Cylinder Head, 320cc, Roller

#721305600

Flo-Tek 305-600 Assembled BBC Cylinder Head, 320cc, Roller

Name: Flo-Tek 305-600 Assembled BBC Cylinder Head, 320cc, Roller
Brand: Flo-Tek
SKU: 721305600
Price: 781 USD
Availability: InStock
Rating: 3 (1 reviews)

1 Review

Ask a Question

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

$781.00

/each

In Stock

Quantity

Need Help? Call to Order

Add to a list

Select an engine to verify Fitment

Select Engine

Product Summary

Assembled Cylinder Head Style, Aluminum, Natural

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

See more details

Key Specs

Cylinder Head Style	Assembled
Material Type	Aluminum
Finish	Natural
Combustion Chamber Volume	133cc
Intake Runner Volume	320cc

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Flo-Tek 305-600 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

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Flo-Tek 305-600 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	2.25"
Intake Valves Included	Yes
Exhaust Valve Diameter	1.88"
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

Ratings & Reviews

1 Review

Write A Review

1 reviews

Filter by Ratings

Sort Reviews

Priced according to valve and workmanship.

3.0

5 years ago

Sq. body blazer

Pearl City Hawaii

Verified

If you purchase this head, all valve need to be lapped into the seats, debure all the sharp edges in the combustion chamber, blend the intake and exhaust ports under the valve seats. Machine work not completed.

Would Not Recommend

Showing 1 of 1 reviews

Questions & Answers

Be the first to ask a question.

Fitment

1965 Chevy Bel Air

396 Chevy Big Block V8

1966-1969 Chevy Bel Air

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Bel Air

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1975 Chevy Bel Air

454 Chevy Big Block V8

1965 Chevy Biscayne

396 Chevy Big Block V8

1966-1969 Chevy Biscayne

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Biscayne

402 Chevy Big Block V8
454 Chevy Big Block V8

1969 Chevy Brookwood

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Brookwood

402 Chevy Big Block V8
454 Chevy Big Block V8

1969 Chevy C10

396 Chevy Big Block V8

1970-1972 Chevy C10

402 Chevy Big Block V8

1973-1979 Chevy C10

454 Chevy Big Block V8

1968-1969 Chevy C10 Suburban

396 Chevy Big Block V8

1970-1972 Chevy C10 Suburban

402 Chevy Big Block V8

1973-1979 Chevy C10 Suburban

454 Chevy Big Block V8

1988 Chevy C15

454 Chevy Big Block V8

1990 Chevy C1500

454 Chevy Big Block V8

1991 Chevy C1500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5

1992-1993 Chevy C1500

454 Chevy Big Block V8

1968-1969 Chevy C20

396 Chevy Big Block V8

1970-1972 Chevy C20

402 Chevy Big Block V8

1973-1987 Chevy C20

454 Chevy Big Block V8

1968-1969 Chevy C20 Suburban

396 Chevy Big Block V8

1970-1972 Chevy C20 Suburban

402 Chevy Big Block V8

1973-1986 Chevy C20 Suburban

454 Chevy Big Block V8

1991 Chevy C2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy C2500

454 Chevy Big Block V8

1996-1997 Chevy C2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1992-1995 Chevy C2500 Suburban

454 Chevy Big Block V8

1996-1997 Chevy C2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1968-1969 Chevy C30

396 Chevy Big Block V8

1970-1972 Chevy C30

402 Chevy Big Block V8

1973-1986 Chevy C30

454 Chevy Big Block V8

1988-1990 Chevy C3500

454 Chevy Big Block V8

1991 Chevy C3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy C3500

454 Chevy Big Block V8

1996-1997 Chevy C3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1967 Chevy Camaro

Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78

1968-1969 Chevy Camaro

Chevy Big Block V8 Mark IV 396 L34
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78
427 Chevy Big Block V8

1970-1972 Chevy Camaro

402 Chevy Big Block V8

1966-1969 Chevy Caprice

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Caprice

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1976 Chevy Caprice

454 Chevy Big Block V8

1965-1969 Chevy Chevelle

396 Chevy Big Block V8

1970-1972 Chevy Chevelle

402 Chevy Big Block V8
454 Chevy Big Block V8

1973 Chevy Chevelle

454 Chevy Big Block V8

1968 Chevy Chevy II

396 Chevy Big Block V8

1965 Chevy Corvette

396 Chevy Big Block V8

1966-1969 Chevy Corvette

427 Chevy Big Block V8

1970-1974 Chevy Corvette

454 Chevy Big Block V8

1966-1969 Chevy El Camino

396 Chevy Big Block V8

1970-1972 Chevy El Camino

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1975 Chevy El Camino

454 Chevy Big Block V8

1969 Chevy Estate

396 Chevy Big Block V8
427 Chevy Big Block V8

1970 Chevy Estate

402 Chevy Big Block V8
454 Chevy Big Block V8

1996-2000 Chevy Express 2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1996-2000 Chevy Express 3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1988-1990 Chevy G30

454 Chevy Big Block V8

1991 Chevy G30

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy G30

454 Chevy Big Block V8

1996 Chevy G30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1965 Chevy Impala

396 Chevy Big Block V8

1966-1969 Chevy Impala

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Impala

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1976 Chevy Impala

454 Chevy Big Block V8

1969 Chevy K10

396 Chevy Big Block V8

1970-1972 Chevy K10

402 Chevy Big Block V8

1973-1974 Chevy K10

454 Chevy Big Block V8

1968-1969 Chevy K10 Suburban

396 Chevy Big Block V8

1970-1972 Chevy K10 Suburban

402 Chevy Big Block V8

1973-1974 Chevy K10 Suburban

454 Chevy Big Block V8

1968-1969 Chevy K20

396 Chevy Big Block V8

1970-1972 Chevy K20

402 Chevy Big Block V8

1973-1974 Chevy K20

454 Chevy Big Block V8

1968-1969 Chevy K20 Suburban

396 Chevy Big Block V8

1970-1972 Chevy K20 Suburban

402 Chevy Big Block V8

1973-1974 Chevy K20 Suburban

454 Chevy Big Block V8

1985 Chevy K20 Suburban

454 Chevy Big Block V8

1991 Chevy K2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy K2500

454 Chevy Big Block V8

1996-1997 Chevy K2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1992-1995 Chevy K2500 Suburban

454 Chevy Big Block V8

1996-1997 Chevy K2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1968-1969 Chevy K30

396 Chevy Big Block V8

1970-1972 Chevy K30

402 Chevy Big Block V8

1977-1986 Chevy K30

454 Chevy Big Block V8

1988-1990 Chevy K3500

454 Chevy Big Block V8

1991 Chevy K3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 Chevy K3500

454 Chevy Big Block V8

1996-1997 Chevy K3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1969 Chevy Kingswood

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Kingswood

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1975 Chevy Laguna

454 Chevy Big Block V8

1965-1967 Chevy Malibu

396 Chevy Big Block V8

1973-1975 Chevy Malibu

454 Chevy Big Block V8

1970-1972 Chevy Monte Carlo

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1975 Chevy Monte Carlo

454 Chevy Big Block V8

1969 Chevy Nova

396 Chevy Big Block V8

1970 Chevy Nova

402 Chevy Big Block V8

1975-1990 Chevy P30

454 Chevy Big Block V8

1991 Chevy P30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5

1992-1995 Chevy P30

454 Chevy Big Block V8

1996-1997 Chevy P30

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1972 Chevy P30 Van

402 Chevy Big Block V8

1973-1974 Chevy P30 Van

454 Chevy Big Block V8

1987-1988 Chevy R20

454 Chevy Big Block V8

1987-1988 Chevy R20 Suburban

454 Chevy Big Block V8

1989 Chevy R2500

454 Chevy Big Block V8

1989-1990 Chevy R2500 Suburban

454 Chevy Big Block V8

1991 Chevy R2500 Suburban

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1987-1988 Chevy R30

454 Chevy Big Block V8

1989-1990 Chevy R3500

454 Chevy Big Block V8

1991 Chevy R3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1969 Chevy Townsman

396 Chevy Big Block V8
427 Chevy Big Block V8

1970-1972 Chevy Townsman

402 Chevy Big Block V8
454 Chevy Big Block V8

1987-1988 Chevy V20 Suburban

454 Chevy Big Block V8

1990 Chevy V2500 Suburban

454 Chevy Big Block V8

1987-1988 Chevy V30

454 Chevy Big Block V8

1989-1990 Chevy V3500

454 Chevy Big Block V8

1991 Chevy V3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1975-1978 GMC C15

454 Chevy Big Block V8

1975-1978 GMC C15 Suburban

454 Chevy Big Block V8

1973-1974 GMC C15/C1500 Pickup

454 Chevy Big Block V8

1973-1974 GMC C15/C1500 Suburban

454 Chevy Big Block V8

1979 GMC C1500

454 Chevy Big Block V8

1979 GMC C1500 Suburban

454 Chevy Big Block V8

1975-1978 GMC C25

454 Chevy Big Block V8

1975-1978 GMC C25 Suburban

454 Chevy Big Block V8

1967-1970 GMC C25/C2500 Pickup

396 Chevy Big Block V8

1971-1972 GMC C25/C2500 Pickup

402 Chevy Big Block V8

1973-1974 GMC C25/C2500 Pickup

454 Chevy Big Block V8

1967-1970 GMC C25/C2500 Suburban

396 Chevy Big Block V8

1971-1972 GMC C25/C2500 Suburban

402 Chevy Big Block V8

1973-1974 GMC C25/C2500 Suburban

454 Chevy Big Block V8

1979-1986 GMC C2500

454 Chevy Big Block V8

1988-1990 GMC C2500

454 Chevy Big Block V8

1991 GMC C2500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC C2500

454 Chevy Big Block V8

1996-2000 GMC C2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1979-1986 GMC C2500 Suburban

454 Chevy Big Block V8

1992-1995 GMC C2500 Suburban

454 Chevy Big Block V8

1996-1999 GMC C2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1975-1978 GMC C35

454 Chevy Big Block V8

1967-1970 GMC C35/C3500 Pickup

396 Chevy Big Block V8

1971-1972 GMC C35/C3500 Pickup

402 Chevy Big Block V8

1979-1986 GMC C3500

454 Chevy Big Block V8

1988-1990 GMC C3500

454 Chevy Big Block V8

1991 GMC C3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC C3500

454 Chevy Big Block V8

1996-2000 GMC C3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1967-1970 GMC K25/K2500 Pickup

396 Chevy Big Block V8

1971-1972 GMC K25/K2500 Pickup

402 Chevy Big Block V8

1967-1970 GMC K25/K2500 Suburban

396 Chevy Big Block V8

1971-1972 GMC K25/K2500 Suburban

402 Chevy Big Block V8

1994-1999 GMC K2500 Suburban

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1977-1978 GMC K35

454 Chevy Big Block V8

1967-1970 GMC K35/K3500 Pickup

396 Chevy Big Block V8

1971-1972 GMC K35/K3500 Pickup

402 Chevy Big Block V8

1979-1986 GMC K3500

454 Chevy Big Block V8

1988-1990 GMC K3500

454 Chevy Big Block V8

1991 GMC K3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1992-1995 GMC K3500

454 Chevy Big Block V8

1996-2000 GMC K3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1987-1989 GMC R2500

454 Chevy Big Block V8

1987-1990 GMC R2500 Suburban

454 Chevy Big Block V8

1991 GMC R2500 Suburban

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1987-1990 GMC R3500

454 Chevy Big Block V8

1991 GMC R3500

Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19

1996-2000 GMC Savana 2500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1996-2000 GMC Savana 3500

Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454

1971-1972 GMC Sprint

402 Chevy Big Block V8
454 Chevy Big Block V8

1973-1977 GMC Sprint

454 Chevy Big Block V8

1967 GMC Suburban

396 Chevy Big Block V8
402 Chevy Big Block V8