PICK YOUR POWER
1
Choose how much performance you need
Jasper has three levels of engine performance for Ford engines.
“Stock” is the general production engine offered in a production
vehicle. Stock engines receive Jasper’s tried-and-true methods
of remanufacturing, including torque-plate honing, valve-seat
machining, precision crankshaft machining, oil-passage chamfering
and polishing, and computer-assisted live-run testing.
“Class I” is the same Jasper general production engine,
but with a mild camshaft upgrade. Class I engines generally
produce about 10 percent more horsepower and torque over
the standard stock engine.
“Class II” is the engine for the serious, performanceminded person who needs power for a specific application.
These engines receive additional machining to castings such
as align boring, square decking, and balancing of the rotating
assembly. Special components like performance valves, highperformance fasteners, a double-roller timing set, and highertension valvesprings are selected and matched for most
applications to obtain maximum performance.
2
The process starts with an intensive cleanup. Engine castings
are baked overnight in ovens at 800 degrees and will be media
blasted with steel shot to thoroughly remove dirt, oil, and other
contaminants.
Here’s the 5.0 core as it’s received for remanufacturing. It’s
inventoried and noted for condition and completeness.
3
The 5.0 after
it has been
media blasted
in automated
equipment.
The block will
be tumbled to
remove residual
cleaning media.
The cleaning
process is
extensive, and it
leaves the iron
surface spotless.