Ford Sealed Racing Engines are built to professional racing series standards and deliver reliable lasting performance. These aren't built from repackaged production parts, but real racing parts like Forged Crank, Rods and Pistons with full floating piston pins. Based on the Ford Racing BOSS 302 block these engines deliver reliable and consistent performance lap after lap.
Built for asphalt and dirt circle track racing series that require a sealed racing engine
347 cubic inches - 4.030" bore - 3.400" stroke
BOSS 302 race block
415 hp @ 6000 rpm 400 lb-ft @ 4900 rpm (with headers, and a 650 CFM Holley carburetor not included)
10:1 Compression ratio (nominal)
SCAT forged crankshaft
SCAT forged steel cap screw connecting rods
Mahle forged pistons with floating pins
Hydraulic roller camshaft M-6250-F303, .528'' lift intake and exhaust, duration at .050" is 226 degrees intake and exhaust
Double roller timing chain set M-6268-A302
High-performance 7 quart rear sump circle track oil pan
Ford Racing aluminum "Z" cylinder heads M-6049-Z304DA with 2.02" intake valves and 1.60" exhaust valves
1.65 ratio roller rocker arms
Edelbrock Victor Jr. intake manifold M-9424-D302
Edelbrock Water Pump
SFI approved vibration damper
MSD billet distributor
ARP Head Studs
Ford Racing polished aluminum Circle Track valve covers M-6582-CT
High volume oil pump
Engine is sealed for circle track competition where rules allow
Engine weight as equipped is 431 lbs. (includes 7 quarts of oil)
Additional technical information can be found at www. fordracingparts.com/circletrack
Competes directly with the GMPP "604" crate engine.
Engine is internally balanced, "0" balance flywheel required
Flywheel is not included INSTALLATION NOTES: See engine installation and tuning tips on page 40. Some or all of the following items may need to be changed from your original engine or modified for proper installation:
This engine has a rear sump performance oil pan and pickup, regular rotation timing cover and regular rotation water pump, and non-EFI valve covers. Depending on your application, a different timing cover, water pump, performance oil pan and pickup may be required. See installation notes
Fuel pump eccentric M-6287-B302 installed, allows use of mechanical fuel pump
A standard rotation water pump is installed on the engine. Other applications may require different water pumps and timing chain covers found on pages 97-98.
The damper M-6316-C302 with counterweight removed, may require a spacer for pulley alignment, see page 85.
The flywheel M-6375-D302 not included should work for most 157-tooth manual transmission applications. For other transmission applications use the proper "0" balance flywheel, see pages 127-128.
Firing order 1-3-7-2-6-5-4-8 (5.0L HO and 351W order).
Built with current available parts. Photo and specs may vary.