427 King Cobra Forged Windsor Stroker Short Block
The Reid's Speed Shop 427 King Cobra represents the flagship of our Small Block Ford stroker lineup. Combining substantial displacement with a heavy-duty Dart SHP aftermarket engine block and premium fully forged rotating assembly, the King Cobra provides an exceptionally capable foundation for serious street performance and demanding high-horsepower applications.
At its foundation is a Dart SHP 351 Windsor engine block featuring billet steel splayed four-bolt main caps, a priority main oiling system, and a one-piece rear main seal. A 4340 forged steel stroker crankshaft with Cleveland main journals, Eagle forged H-beam connecting rods with ARP 2000 hardware, and JE forged dished pistons provide the strength and durability needed for demanding performance combinations.
The King Cobra's increased displacement offers exceptional potential for strong low-end torque, substantial midrange power, and impressive horsepower when paired with a properly matched top-end combination.
Every short block receives professional machine work, careful component preparation, precision measurements, and final assembly. Each engine block is also painted in your choice of color.
Standard Forged Short Block
Starting at $6,999
Dart SHP Heavy-Duty 351 Windsor Aftermarket Block
Billet Steel Splayed Four-Bolt Main Caps
Priority Main Oiling System
One-Piece Rear Main Seal
4340 Forged Steel Stroker Crankshaft with Cleveland Main Journals
Eagle Forged 6.200" H-Beam Connecting Rods
ARP 2000 Connecting Rod Bolts
JE Forged Dished Pistons
Premium Tri-Metal Main and Rod Bearings
Installed Coated Camshaft Bearings
Brass Expansion Plugs
Professional Machine Work and Block Preparation
Precision Measurements and Assembly
Engine Block Painted in Your Choice of Color
Available Package Upgrades
Hydraulic Roller Camshaft Package
+$1,500
Includes everything in the Standard Forged Short Block, plus:
Custom-Selected Hydraulic Roller Camshaft (Stage 1, 2, or 3)
Ford Performance Hydraulic Roller Lifters
New Hydraulic Roller Lifter Retainer Kit
9-Way Adjustable Billet Double Roller Timing Set with Torrington Bearing
New Camshaft Retainer Plate
Two-Piece Fuel Pump Eccentric
ARP Camshaft Hardware
Camshaft selection is tailored to your intended application and performance goals. Whether you're looking for responsive street manners, an aggressive muscle car character, or a more performance-oriented combination, we'll select a camshaft that complements your build.
Hydraulic Roller Camshaft + Sealed Short Block Package
+$2,200 over the Standard Short Block for Front Sump
+$2,350 over the Standard Short Block for Rear Sump
Includes everything in the Hydraulic Roller Camshaft Package, plus:
Melling Performance Engine Oil Pump
ARP Hardened Oil Pump Driveshaft
Properly Matched Oil Pump Pickup
ARP Oil Pump Mounting Hardware
Stroker-Clearanced Oil Pan (Front or Rear Sump)
One-Piece Oil Pan Gasket
ARP Oil Pan Hardware
Silver Seal Timing Cover
Timing Cover Gasket and Front Crankshaft Seal
This configuration provides a more complete, professionally assembled and sealed short block, ready for the installation of your selected cylinder heads, valvetrain, induction system, and remaining engine components.
Front- and rear-sump configurations are available to accommodate different vehicle applications.
Built for Your Combination
The 427 King Cobra is designed for enthusiasts looking to maximize the performance potential of the traditional Small Block Ford platform. Its substantial displacement offers the ability to produce exceptional torque and horsepower without relying exclusively on high engine speeds.
Whether you're building a powerful street-driven muscle car, a high-performance weekend machine, or a more demanding performance application, the King Cobra provides a strong foundation with premium components selected for strength, durability, and long-term performance.
Each package is professionally prepared and assembled by Reid's Speed Shop, with an emphasis on precision, component compatibility, and the same attention to detail found throughout our complete engine builds.
Cylinder heads, intake manifold, and other top-end components are not included. Final compression ratio depends on the selected cylinder heads, head gasket specifications, piston configuration, and assembled combination.
The Reid's Speed Shop 427 King Cobra represents the flagship of our Small Block Ford stroker lineup. Combining substantial displacement with a heavy-duty Dart SHP aftermarket engine block and premium fully forged rotating assembly, the King Cobra provides an exceptionally capable foundation for serious street performance and demanding high-horsepower applications.
At its foundation is a Dart SHP 351 Windsor engine block featuring billet steel splayed four-bolt main caps, a priority main oiling system, and a one-piece rear main seal. A 4340 forged steel stroker crankshaft with Cleveland main journals, Eagle forged H-beam connecting rods with ARP 2000 hardware, and JE forged dished pistons provide the strength and durability needed for demanding performance combinations.
The King Cobra's increased displacement offers exceptional potential for strong low-end torque, substantial midrange power, and impressive horsepower when paired with a properly matched top-end combination.
Every short block receives professional machine work, careful component preparation, precision measurements, and final assembly. Each engine block is also painted in your choice of color.
Standard Forged Short Block
Starting at $6,999
Dart SHP Heavy-Duty 351 Windsor Aftermarket Block
Billet Steel Splayed Four-Bolt Main Caps
Priority Main Oiling System
One-Piece Rear Main Seal
4340 Forged Steel Stroker Crankshaft with Cleveland Main Journals
Eagle Forged 6.200" H-Beam Connecting Rods
ARP 2000 Connecting Rod Bolts
JE Forged Dished Pistons
Premium Tri-Metal Main and Rod Bearings
Installed Coated Camshaft Bearings
Brass Expansion Plugs
Professional Machine Work and Block Preparation
Precision Measurements and Assembly
Engine Block Painted in Your Choice of Color
Available Package Upgrades
Hydraulic Roller Camshaft Package
+$1,500
Includes everything in the Standard Forged Short Block, plus:
Custom-Selected Hydraulic Roller Camshaft (Stage 1, 2, or 3)
Ford Performance Hydraulic Roller Lifters
New Hydraulic Roller Lifter Retainer Kit
9-Way Adjustable Billet Double Roller Timing Set with Torrington Bearing
New Camshaft Retainer Plate
Two-Piece Fuel Pump Eccentric
ARP Camshaft Hardware
Camshaft selection is tailored to your intended application and performance goals. Whether you're looking for responsive street manners, an aggressive muscle car character, or a more performance-oriented combination, we'll select a camshaft that complements your build.
Hydraulic Roller Camshaft + Sealed Short Block Package
+$2,200 over the Standard Short Block for Front Sump
+$2,350 over the Standard Short Block for Rear Sump
Includes everything in the Hydraulic Roller Camshaft Package, plus:
Melling Performance Engine Oil Pump
ARP Hardened Oil Pump Driveshaft
Properly Matched Oil Pump Pickup
ARP Oil Pump Mounting Hardware
Stroker-Clearanced Oil Pan (Front or Rear Sump)
One-Piece Oil Pan Gasket
ARP Oil Pan Hardware
Silver Seal Timing Cover
Timing Cover Gasket and Front Crankshaft Seal
This configuration provides a more complete, professionally assembled and sealed short block, ready for the installation of your selected cylinder heads, valvetrain, induction system, and remaining engine components.
Front- and rear-sump configurations are available to accommodate different vehicle applications.
Built for Your Combination
The 427 King Cobra is designed for enthusiasts looking to maximize the performance potential of the traditional Small Block Ford platform. Its substantial displacement offers the ability to produce exceptional torque and horsepower without relying exclusively on high engine speeds.
Whether you're building a powerful street-driven muscle car, a high-performance weekend machine, or a more demanding performance application, the King Cobra provides a strong foundation with premium components selected for strength, durability, and long-term performance.
Each package is professionally prepared and assembled by Reid's Speed Shop, with an emphasis on precision, component compatibility, and the same attention to detail found throughout our complete engine builds.
Cylinder heads, intake manifold, and other top-end components are not included. Final compression ratio depends on the selected cylinder heads, head gasket specifications, piston configuration, and assembled combination.