Roush SF427SRXGTC 427 CI Street Race X GT Calibration Engine

Description

Eliminate catastrophic power train failures with the Roush SF427SRXGTC Crate Engine, engineered for commercial long block repower programs requiring calibrated small block Ford power. This 427 cid 7.0L engine produces 560HP at 6,200 RPM with electronic fuel injection. Installers must verify radiator core thermal capacity because 560HP demands high volume dual pass cooling systems.

Premium cast iron forms the aftermarket 4-bolt main block with nodular iron main caps. A forged 4340 chromoly steel crankshaft anchors this Roush engine core. The heavy 12V starter draws 175A during starter engagement. Dry engine weight measures 495 lbs within dimensions of 28in length by 25in width by 27in height. Sump capacity holds 7.0 quarts.

Key Features of Roush SF427SRXGTC

Fleet supervisors buy Roush SF427SRXGTC Crate Engine units for severe industrial engine rebuild programs that demand turn key reliability. The engine management system includes factory calibrated fuel and ignition maps for street and track use.

• CNC ported aluminum cylinder heads house 2.08in intake valves to maximize cylinder air fill volume.
• A performance hydraulic roller camshaft profile keeps valve open duration stable across peak power bands.
• Electronic throttle body fuel injection self tunes fuel delivery under changing atmospheric barometric pressure.
• Forged aluminum pistons endure intense combustion pressure cycles without wrist pin galling.
• The SF427SRXGTC commercial core maintains rod bearing oil clearances within 0.0018in tolerances.
• Roller rocker arms feature precision needle bearings that eliminate friction across high lift sweeps.
• High volume oil pump pickups provide steady oil delivery under rapid acceleration forces.

Dynamometer Load Bench Test Limits

Dyno bench certification confirms 560HP at 6,200 RPM and 540 ft-lbs torque at 4,500 RPM for this SF427SRXGTC long block engine. Gauge monitors record 58 PSI oil gallery pressure at 2,500 RPM with oil temperatures stabilizing at 195°F. Cylinder compression checks record 190 PSI across all eight cylinders within 3% balance. Crankshaft runout checks show 0.0002in TIR total runout. Exhaust temperature probes report 1,280°F under peak load.

Shop Installation Maintenance Protocol Requirements

Throttle linkage setups demand 5 lbs return spring pull force to ensure positive valve return. Fabricators must avoid this heavy duty replacement engine for street chassis without high output electric fuel pumps delivering 45 PSI fuel rail pressure.

• Drain break in oil after 500 miles or 20 hours then refill with 10W-40 synthetic heavy duty oil.
• Inspect throttle position sensor voltage sweep with digital voltmeters prior to initial engine start up.
• Torque cylinder head fasteners to 80 ft-lbs following initial dynamometer thermal cycles.

Crate Manifest Warranty Protection Coverage

This package features the Roush build standard with 2-Year or 24,000-mile warranty protection. Shipping crates enclose the dressed long block, electronic throttle body injection, distributor, water pump, harmonic balancer, oil pan, valve covers, plus certified dyno test documentation.