Roush BD347SRC 347 SR 5.7L 410 HP Carbureted Crate Engine

Description

Seasoned track builders trust the Roush BD347SRC Crate Engine for dependable commercial long block repower setups demanding 410HP from small block Ford architecture. This 347 cid 5.7L stroker V8 produces 400 ft-lbs torque at 4,000 RPM. Technicians must check clutch linkage geometry because aftermarket bellhousings require correct pivot ball height for clean disengagement.

Solid ASTM A48 Class 30 gray iron forms the 4-bolt main engine casting. A forged 4340 chromoly steel crankshaft pairs with forged H-beam rods inside this Roush engine core. The 12V starter motor draws 165A during cold cranking. Dry weight measures 460 lbs across an engine stance of 27in length by 26in width by 28in height. Sump holds 7.0 quarts.

Key Features of Roush BD347SRC

Fleet operators buy Roush BD347SRC Crate Engine units for high precision industrial engine rebuild assignments. A dual plane aluminum intake manifold pairs with a calibrated four barrel carburetor to deliver strong mid range pulling power.

• CNC ported aluminum cylinder heads house 2.02in intake valves to promote high velocity chamber filling.
• A custom ground hydraulic roller camshaft provides stable valve actuation across upper RPM bands.
• The four barrel carburetor meters fuel delivery across broad operating RPM ranges without electronic sensors.
• Forged aluminum pistons endure intense combustion pressure cycles without wrist pin galling.
• The BD347SRC commercial core maintains 0.0017in connecting rod bearing clearance for dependable oil films.
• High volume oil pumps circulate lubricant through internal galleys to prevent journal wear.
• Multi layer steel head gaskets clamp down tightly to eliminate combustion bore leakage.

Dynamometer Bench Performance Output Metrics

Dyno validation charts indicate 410HP at 5,800 RPM and 400 ft-lbs torque at 4,000 RPM on this BD347SRC long block engine. Gauge monitors record 52 PSI oil gallery pressure at 2,000 RPM with oil temperatures stabilizing at 190°F. Cylinder compression checks record 185 PSI across all eight cylinders within 3% balance. Crankshaft runout checks show 0.0003in TIR total runout. Exhaust temperature probes report 1,260°F under peak load.

Field Usability Scheduled Maintenance Directives

Mechanical throttle return linkage needs 5 lbs return spring force for secure closure against vibration. Fleet technicians should not choose this commercial replacement engine for front wheel drive vehicle chassis or applications requiring electronic fuel injection computers.

• Drain break in crankcase oil after 500 miles or 20 hours then install fresh 10W-40 mineral oil.
• Check carburetor float levels through inspection sight plugs prior to hot operational runs.
• Retorque cylinder head bolts to 75 ft-lbs after the initial thermal heat expansion cycle.

Crate Manifest Verified Warranty Protection

Backed by the Roush build standard, this package features a 2-Year or 24,000-mile limited warranty. The wooden crate contains the dressed engine core, aluminum intake manifold, carburetor, distributor, water pump, harmonic balancer, oil pan, valve covers, plus certified dyno test documentation.