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427 SR CRATE ENGINE — image 1

Crate Engines

427 SR CRATE ENGINE

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Application: crate engine — call us to plan the build and confirm your application.

Installed at our East Bridgewater shop, or shipped anywhere in the US. Prefer to talk? 508-715-3554

  • Genuine ROUSH Performance part, from an authorized Gold Dealer
  • Installed by Ford specialists at our East Bridgewater shop
  • Roush retail price. Installed price estimated up front, confirmed before work

Prices and availability subject to change. Prices updated October 2, 2026.

Details & specs

HIGHLIGHTS

  • 510 HP
  • 9.5 deck height
  • Small block
  • Iron 4-bolt block
  • Steel crank
  • H-beam rods
  • Forged pistons
  • Aluminum CNC ported heads
  • Roller cam
  • Dual plane intake
  • Holley 4-barrel carb
  • Dynamometer tested
  • Premium fuel
  • Turn-key ready
  • 2-year / 24,000-mile limited warranty

TECHNICAL SPECIFICATIONS

  Engine Family:SBF
Displacement:427 cid
Power:510 hp
Torque:515 ft-lbf
Cylinder Block:9.500" Iron
Crankshaft Type:Steel
Crankshaft Stroke:4.000 in
Piston Type:Forged Aluminum
Conrod Type:Steel H-Beam
Timing Chain:Double Roller
Lifter:Hydraulic Roller
Cylinder Head:Aluminum
Intake Port:CNC
Intake Manifold Material:Aluminum
Intake Manifold Config:Dual Plane
Fueling:Carburetor
Fuel Grade:Premium Gasoline
Oil Weight:10W-30
Max Engine Speed:6250 rpm
Limited Warranty:2 Years / 24,000 Miles


CRATE ENGINE CHARACTERISTICS

ROUSH Crate Engines are high-performance engines that are based on and operate like the engines designed and produced in the 1960s and later. However, unlike engines of that time, ROUSH Crate Engines (like other crate engines currently manufactured in the marketplace) produce significantly more power and torque. As a consequence of this, these engines have characteristics different from the original production engines upon which they have been based. The following characteristics are not covered by the ROUSH Crate Engine Limited Warranty and should be considered before purchase.

Additionally, It will be the sole responsibility of the installer/end user to select components and optimize the vehicle system based on each vehicle's unique characteristics, and it's intended use. This includes, but is not limited to the selection and/or optimization of the vehicle cooling system, air flow adequacy, A/C system performance, etc., and the suitability of the vehicle and its systems for the end use and environment (weather conditions, altitude, etc.).

Specifically ROUSH Crate Engines:

  • Are assembled with larger operating clearances
  • Will likely have a rougher idle due to the high performance camshaft design
  • Will likely make more mechanical noise
  • Will likely consume more oil during normal operation
  • Will generate more heat due to the increased power level
  • May exhibit non-production-like drive characteristics at various speeds and load conditions
  • Will likely consume more fuel due to the increased power level
  • Will produce +/- 2% of the advertised power
  • May, as configured by an installer or end user, only be legally used in emissions-exempt applications.

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