363 Viper Forged Windsor Stroker Short Block
The Reid's Speed Shop 363 Viper is designed for those seeking maximum naturally aspirated performance potential from the compact 302-based Small Block Ford platform. Combining increased displacement, a large 4.125" cylinder bore, and a heavy-duty aftermarket engine block with a fully forged rotating assembly, the Viper provides an exceptionally capable foundation for serious street performance and high-horsepower applications.
At its foundation is a Dart SHP 302-based engine block featuring splayed four-bolt main caps and a priority main oiling system. The larger 4.125" bore, combined with a 4340 forged steel stroker crankshaft, forged 5140 H-Beam connecting rods, and DSS forged pistons, provides increased displacement while retaining the compact dimensions of the traditional 302-based Small Block Ford.
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 $6,399
Dart SHP Heavy-Duty 302-Based Aftermarket Block
4.125" Cylinder Bore
Splayed Four-Bolt Main Caps
Priority Main Oiling System
4340 Forged Steel 3.400" Stroker Crankshaft
Forged 5140 5.400" H-Beam Connecting Rods
ARP 2000 Connecting Rod Hardware
DSS Forged 4.125" 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
+$1,400
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
+$2,100 over the Standard Short Block for Front Sump
+$2,250 over the Standard Short Block for Rear Sump
Includes everything in the Hydraulic Roller Camshaft Package, plus:
Melling 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 363 Viper is designed for enthusiasts looking to maximize performance while retaining the compact 302-based Small Block Ford architecture. Its larger cylinder bore offers additional displacement and can accommodate larger valves with reduced cylinder-wall shrouding when paired with appropriately selected cylinder heads.
Whether you're building a responsive street-driven performance engine or a more aggressive high-RPM combination, the 363 Viper provides a strong foundation for a wide range of applications.
Each package is professionally prepared and assembled by Reid's Speed Shop, with an emphasis on precision, component compatibility, and long-term performance.
Cylinder heads, intake manifold, and other top-end components are not included. Final compression ratio depends on the selected cylinder heads, head gasket specifications, and assembled combination.
The Reid's Speed Shop 363 Viper is designed for those seeking maximum naturally aspirated performance potential from the compact 302-based Small Block Ford platform. Combining increased displacement, a large 4.125" cylinder bore, and a heavy-duty aftermarket engine block with a fully forged rotating assembly, the Viper provides an exceptionally capable foundation for serious street performance and high-horsepower applications.
At its foundation is a Dart SHP 302-based engine block featuring splayed four-bolt main caps and a priority main oiling system. The larger 4.125" bore, combined with a 4340 forged steel stroker crankshaft, forged 5140 H-Beam connecting rods, and DSS forged pistons, provides increased displacement while retaining the compact dimensions of the traditional 302-based Small Block Ford.
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 $6,399
Dart SHP Heavy-Duty 302-Based Aftermarket Block
4.125" Cylinder Bore
Splayed Four-Bolt Main Caps
Priority Main Oiling System
4340 Forged Steel 3.400" Stroker Crankshaft
Forged 5140 5.400" H-Beam Connecting Rods
ARP 2000 Connecting Rod Hardware
DSS Forged 4.125" 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
+$1,400
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
+$2,100 over the Standard Short Block for Front Sump
+$2,250 over the Standard Short Block for Rear Sump
Includes everything in the Hydraulic Roller Camshaft Package, plus:
Melling 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 363 Viper is designed for enthusiasts looking to maximize performance while retaining the compact 302-based Small Block Ford architecture. Its larger cylinder bore offers additional displacement and can accommodate larger valves with reduced cylinder-wall shrouding when paired with appropriately selected cylinder heads.
Whether you're building a responsive street-driven performance engine or a more aggressive high-RPM combination, the 363 Viper provides a strong foundation for a wide range of applications.
Each package is professionally prepared and assembled by Reid's Speed Shop, with an emphasis on precision, component compatibility, and long-term performance.
Cylinder heads, intake manifold, and other top-end components are not included. Final compression ratio depends on the selected cylinder heads, head gasket specifications, and assembled combination.