Roush 511SRFE 511 CI Street Race Ford FE Crate Engine

Description

Eliminate competition valvetrain deflection with the Roush 511SRFE Street Race Crate Engine. Displacing 511 cubic inches, this Street Race Ford FE motor outputs 630 horsepower at 6000 RPM and 615 lb-ft torque at 4600 RPM. High compression pistons, mechanical valvetrain components, and an 850 CFM race carburetor deliver unrelenting quarter mile straight line speed.

Solid cast iron FE block casting features heavy siamese cylinder walls anchored by cross bolted main bearing caps. Rotating components include a 4340 forged steel 4.437 inch stroke crankshaft, forged H-beam rods, and forged aluminum pistons inside 4.280 inch bores. The race calibrated 11.0:1 compression ratio mandates 93 octane pump fuel. Total dressed dry weight with road race oil pan measures 590 lbs.

Key Features of Roush 511SRFE

Buy Roush 511SRFE crate engine units to construct high output vintage drag cars and competitive road race track machines. The dressed package pairs high flow aluminum cylinder heads with a tuned four barrel carburetor for immediate track readiness.

• 850 CFM mechanical secondary carburetor meters massive air fuel volume during full throttle track passes.
• Single plane aluminum intake manifold maximizes cylinder charging throughout upper rev limits.
• Cross bolted main bearing caps eliminate crank journal flex under elevated track RPM loads.
• High flow CNC ported aluminum cylinder heads maximize air flow speed across oversized intake valves.
• Stroker 4.437 inch forged crankshaft produces 615 lb-ft torque to launch heavy vehicle chassis hard.
• Mechanical roller camshaft profile creates sharp valve events without valve float past 6500 RPM.
• Roush 511SRFE valvetrain parts feature shaft mounted roller rocker arms to eliminate stud deflection.

Street Race 511 Dyno Output Calibration

Engine dyno records confirm this big block generates 630 brake horsepower at 6000 RPM and 615 lb-ft torque at 4600 RPM across an aggressive 2500 to 6500 RPM operating band. Cam duration measures 248 degrees intake and 256 degrees exhaust at 0.050 inch lift, producing 0.630 inch intake and 0.630 inch exhaust lift. The engine draws 11 in-Hg vacuum at 950 RPM on 93 octane fuel, maintaining 55 to 70 PSI hot oil pressure.

Classic FE Subframe Chassis Spacing

Authentic Ford FE exterior dimensions drop straight into 427 Cobra roadster replica chassis and 1968 to 1970 Ford Mustangs. The internal neutral balance crankshaft couples to Ford Toploader, Tremec TKX, or C6 automatic transmissions using FE bellhousings. The race oil pan clears forward suspension crossmembers, while aluminum heads clear aftermarket headers.

Mechanical Roller Startup Protection Rules

Pre prime the engine oiling channels with high zinc break in oil using an oil pump drive tool prior to startup. This competition racing engine is not engineered for marine bilge setups, forced induction boost exceeding six PSI on stock ring end gaps, or unmetered nitrous oxide systems.

• Drain break in oil and replace the spin on lube filter after the initial fifty track passes.
• Perform regular motor oil changes every five race events with high zinc synthetic racing oil.
• Inspect mechanical solid roller valve lash adjustments and examine spark plug coloration every race weekend.

Roush 511SRFE Shipped Crate Manifest

Protection includes a 2-Year / 24,000-Mile factory limited warranty guarding against defective components. The shipment crate contains the assembled Street Race 511 engine, 850 CFM carburetor, single plane intake manifold, distributor, spark wires, oil pan, valve covers, and an official dynamometer run sheet.