Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

FLOTEK 185cc Small Block Ford Thumper Cylinder Heads 185-505 Head, 185cc/60cc "Thumper", SBF Stud and Plate Assembled, Each

SKU: FLK185-505

Cylinder Heads

FLOTEK 185cc Small Block Ford Thumper Cylinder Heads 185-505 Head, 185cc/60cc "Thumper", SBF Stud and Plate Assembled, Each

SKU: FLK185-505

Cylinder Heads
A$1,444.22
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

IMPORTANT NOTICE: Thermactor plugs not included (TFS-51400265) Will not accept stock pushrods.

FLOTEK 185cc Small Block Ford Thumper cylinders heads feature a raised "floor" and "roof" design. Why you ask? This allows a better approach to the valve when attempting to achieve high performance and to keep air and fuel attached to short turn radius for increased torque over a wider rpm range without sacrificing high-rpm power. Coupled with the new chamber design for better wet flow quality and a "W" design exhaust port to keep flow attached to the port floor which greatly increases exhaust gas evacuation verses original 180cc design. Always thinking of the racer, the FLOTEK Thumper 180 accepts stock manifold!

Part Type

SBF 185 Thumper Cyl Head ALuminum - Assembled

Data: v4.2 - Upd: 2026-09-29 00:35:44

Specifications

Product Attributes - Brand
Flotek
Product Attributes - Manufacturer's Part Number
185-505
Product Attributes - Part Type
Cylinder Heads
Product Attributes - Product Line
FLOTEK 185cc Small Block Ford Thumper Cylinder Heads
Product Attributes - UPC
850134007938
Product Attributes - Combustion Chamber Volume (cc)
60
Product Attributes - Intake Runner Volume (cc)
185cc
Product Attributes - Exhaust Runner Volume (cc)
62cc
Product Attributes - Cylinder Head Style
Assembled
Product Attributes - Cylinder Head Material
Cast aluminum
Product Attributes - Camshaft Style
Hydraulic roller
Product Attributes - Intake Port Shape
Rectangular
Product Attributes - Intake Valve Diameter (in.)
2.020 in.
Product Attributes - CNC-Machined Combustion Chamber
No
Product Attributes - CNC-Machined Intake Runner
No
Product Attributes - CNC-Machined Exhaust Runner
No
Product Attributes - Intake Port Location
Standard
Product Attributes - Exhaust Port Shape
Square
Product Attributes - Exhaust Port Location
Standard
Product Attributes - Intake Valves Included
Yes
Product Attributes - Exhaust Valves Included
Yes
Product Attributes - Exhaust Valve Diameter (in.)
1.600 in.
Product Attributes - Valve Springs Included
Yes
Product Attributes - Maximum Valve Lift (in.)
0.550 in.
Product Attributes - Outside Diameter of Outer Spring (in.)
1.460 in.
Product Attributes - Damper Spring Included
Yes
Product Attributes - Number of Springs Per Valve
Single
Product Attributes - Retainers Included
Yes
Product Attributes - Retainer Material
Chromoly steel
Product Attributes - Locks Included
Yes
Product Attributes - Lock Style
7 degree
Product Attributes - Valve Stem Seals Included
Yes
Product Attributes - Valve Stem Seal Style
Positive stop
Product Attributes - Rocker Arm Studs Included
Yes
Product Attributes - Rocker Arm Nut Thread Size
3/8 in.-24
Product Attributes - Rocker Arms Included
No
Product Attributes - Rocker Arm Nuts Included
No
Product Attributes - Guideplates Included
Yes
Product Attributes - Guideplate Pushrod Size
5/16 in.
Product Attributes - Valve Cover Mounting Style
Perimeter bolt
Product Attributes - Accessory Bolt Holes Drilled
Yes
Product Attributes - Intake Valve Angle
20
Product Attributes - Exhaust Valve Angle
20
Product Attributes - Valve Guides Included
Yes
Product Attributes - Valve Guide Material
Manganese bronze
Product Attributes - Valve Seats Machined
Yes
Product Attributes - Valve Seat Machine Style
3-angle
Product Attributes - Valve Seat Material
Cast alloy
Product Attributes - Cylinder Head Color
Natural
Product Attributes - Steam Holes Drilled
No
Product Attributes - Oiling Style
Through pushrod
Product Attributes - Machined for O-Ring
No
Product Attributes - Heat Crossover
Yes
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Thermactor plugs not included (TFS-51400265) Will not accept stock pushrods.

Reference Information

Brand Name/s Flotek
StreetFX SKU flk185-505
SFX Item ID 5202629
Supplier Item Code 5202629
Manufacturer SKU 185-505
Manufacturer UPC 850134007938
Alternative References FTC185-505, 185cc, 185cc/60cc

Compatibility

Application Data
  • Beginning Year1963
    Ending Year1969
    Engine FamilyFord small block Windsor
    Engine Size4.7L/289
    Engine TypeV8
    MakeFORD
    Rocker Arm Mounting Style (application)Stud
  • Beginning Year1968
    Ending Year1996
    Engine FamilyFord small block Windsor
    Engine Size5.0L/302
    Engine TypeV8
    MakeFORD
    Rocker Arm Mounting Style (application)Stud
  • Beginning Year1969
    Ending Year1986
    Engine FamilyFord small block Windsor
    Engine Size5.8L/351
    Engine TypeV8
    MakeFORD
    Rocker Arm Mounting Style (application)Stud

Loading compatibility information...