Roush SF511SRFEPC 511 CI Street Race FE Performance Crate Engine

Description

Match street manners with track endurance using the Roush SF511SRFEPC Street Performance Crate Engine power system. This 511-cubic-inch 8.4-liter FE V8 delivers 600 horsepower at 5,800 RPM and 620 lb-ft torque on pump fuel. It powers vintage Cobra roadsters, pro-touring hot rods, and classic muscle cars demanding immense low-end torque combined with docile street driving manners.

Constructed around an aluminum FE engine block featuring cross-bolted main bearing caps, this unit minimizes vehicle nose weight. The reciprocating group contains a 4340 forged steel 4.250-inch stroke crankshaft, forged H-beam rods, and 4.375-inch bore forged aluminum pistons setting compression at 10.25:1. A street-strip baffled oil pan manages oil control, bringing complete dry engine mass to 505 lbs.

Key Features of Roush SF511SRFEPC

This aluminum big block delivers street manners without sacrificing massive low-rpm passing power. Enthusiasts who buy Roush SF511SRFEPC crate engine packages gain hand-fitted internal components matched with dynamometer-verified horsepower and torque output.

• Aluminum engine block casting sheds over 100 lbs compared to traditional cast iron FE blocks
• 4.375-inch bore forged pistons endure severe combustion pressures while running pump gasoline
• 4340 forged steel crankshaft counterweights cancel rotational vibration during hard acceleration
• Cross-bolted steel main caps anchor the crankshaft against journal flex under high loads
• CNC ported aluminum cylinder heads generate exceptional charge velocity into combustion bowls
• SF511SRFEPC hydraulic roller camshaft profiles optimize idle vacuum while preserving mid-range punch
• Shaft-mounted roller rocker arms cut valvetrain friction and pushrod deflection under high lift
• Baffled wet sump oil pans eliminate oil cavitation during sudden street acceleration maneuvers

Torque Curve Dyno Figures

Dynamometer pulls certify 600 brake horsepower at 5,800 RPM and 620 lb-ft torque at 4,000 RPM across an operating band of 2,000 to 6,000 RPM. Camshaft timing measures 0.595-inch intake lift, 0.605-inch exhaust lift, and 240/246 duration at 0.050-inch lift. Designed for 91 or 93-octane pump fuel, it creates 14 in-Hg idle vacuum with 50 to 65 PSI oil pressure.

Chassis Installation Clearances

Standard Ford FE bellhousing patterns connect straight to four-speed, five-speed, and six-speed manual transmissions with neutral-balance flywheels. Motor mount positions match classic Ford passenger car and Cobra replica chassis pads, clearing frame rails, steering boxes, and inner fender panels without metal cutting.

Startup Sequence Excluded Applications

Prime the oiling system with high-zinc petroleum break-in oil using a drill primer tool prior to initial cranking. Purge coolant air completely to prevent hot spots around combustion chambers. This street-performance unit is not engineered for marine water cooling, continuous industrial pumping, or forced induction boost past 6 PSI.

• Drain break-in mineral oil and check drain plug magnets after the first 50 miles
• Swap engine oil and install fresh spin-on oil filters every 3,000 miles
• Examine ignition timing advance and check distributor gears every 12 months

Warranty Statement Physical Contents

Roush covers this engine with a 24-Month / 24,000-Mile factory limited parts warranty. The delivered wooden crate contains the fully assembled long block, dual-plane intake manifold, distributor, water pump, harmonic balancer, oil pan, and certified dynamometer run test sheet.