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

FLO-TEK Performance Big Block Chevy Cylinder Heads are manufactured from cast aluminum and are designed to meet the demands of the big block Chevy enthusiast while retaining high quality at a reasonable price! Perfect for all high performance street/strip, racing, and marine applications, FLO-TEK’s 360 cylinder heads for big block Chevy deliver exceptional power potential and competition level durability. Features include rectangular intake runners for strong mid-to high-rpm performance.

The FLO-TEK BBC 360 takes stock pistons with raised valve cover. The BBC 360 Exhaust Port location is raised .500.


HYDRAULIC ROLLER (Part# 407-6056) – PSK573-1-10 Up to .725 Lift CL 225# @ 1.90 OP 530# @ 1.28 C/BIND 1.18 O.D 1.55” Dual W/D I.D. 0.75

SOLID ROLLER (Part# 407-6058) – PSK623-1-10 Up to .750 CL 290# @ 1.90 OP 625# @ 1.30 C/BIND 1.17 O.D 1.62” Dual W/D I.D. 0.74

SOLID ROLLER (Part# 407-5059) – PAC1224 Up to .850 Lift CL 275# @ 2.00 OP 810# @ 1.150 C/BIND 1.100 O.D 1.62” Dual I.D. 0.85


  • Headers will bolt on in most applications. Some may have interference.
  • Recommendations: Hooker Super Comp Headers
  • Stock Bolt Spread
  • May be necessary to use lowered motor mounts


Specifications, Features & Optional Supporting Components

Head Bolt Torque75 Ft Lbs w/ oil
Intake Valve SeatPowder Metal
Exhaust Valve SeatPowder Metal
Bronze Valve GuidesPhosphor Bronze
Rocker Stud Torque50 Ft Lbs w/ oil
Intake Port GasketFel Pro 1252-3 (320) Fel Pro 1211 (360)
Exhaust Port GasketFel Pro 1410
Head GasketFel Pro 1017-1 (4.500) 1057 (4.630)
Head Bolts & StudsARP 135-3703 (12pt) 135-3606 (6pt) 235-4303 (Stud)
Stud GirdleHarland Sharpe G1114 (7/16)
Suggested ManifoldVictor Jr, Super Victor
Spark Plug Starting Range14mm (.750) Accel #416
Intake Port Volume360cc
Exhaust Port Volume128cc
Combustion Chambers133cc
Max Spring Pocket Diameter1.725” O.D.

Basic Package Components:
Intake Valve Hydraulic2.250 +.250
Exhaust Valve Hydraulic1.880 Stock Length
Intake Valve Solid2.250 +.250
Exhaust Valve Solid1.880 +.100
Valve Locks7 Degree and 10 Degree
Guide PlatesDART 2700123-4/PC-4247
Rocker StudMust have Clearance for Valve Spring Retainers
Valve SealsViton Positive Seals
Spring CupHardened Steel Cups

Part Specification

Flo-Tek Cylinder HeadID#Part Number
BBC 360 Bare850134007150408-500
BBC 360 Hyd Roller Assembled850134007709407-6056
BBC 360 Solid Roller Assembled850134007716407-6058
BBC 360 Solid Roller PAC Assembled850134007587407-5059

Flow Chart


Dimensions & Weight

Big Block Chevy Bare31.2 Pounds
Big Block Chevy Assembled39.8 Pounds

Additional information

Weight 43 lbs
Dimensions 22.25 × 8.5 × 5 in

BBC 360 Bare (408-500), BBC 360 Hyd Roller Assembled (407-6056), BBC 360 Solid Roller Assembled (407-6058), BBC 360 Solid Roller PAC Assembled (407-5059)