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Case
 Only
late style dual pressure relief cases are used. They are first
hot tank, then thoroughly washed by hand. The cylinder base
area is decked and surfaced on a Bridgeport Mill to set
initial deck height alignment between all four cylinders and and
to eliminate oil leads at the base of the cylinders. Case inserts
or "Case Savers" are installed, Align Boring and all
remaining machine work is done and then the case is thoroughly
cleaned again and painted.
Dual
Port Heads
 JCS
buys thousands of head cores every year. A good portion of those
are scrapped for the aluminum "scrap value" because
they are too worn to be rebuilt or require too much work. We select
only the best cores for rebuilding to insure a high quality, dependable
finished product and to minimize the amount of labor put into
rebuilding a head. These select cores are then fully machined...
valve guides are replaced with manganese-bronze guides designed
for extreme wear resistance and improved lubrication. All
valve seats are replaced with heat treated chromoly steel
seats that promote a quick, high heat transfer rate
from the valve to the cylinder head casting.
New
Piston & Cylinder Set
VW
Connecting Rods
Late style
1600 rod cores are shot-peened, sandblasted and checked
for straightness. New wrist pin bushings are installed then rods
are bored and honed center to center.
VW
Crankshafts
 JCS
uses only 1600cc style "crossdrilled" crankshafts for
it's superior oiling properties. Cores are shot peened,
sand blasted, then carefully inspected for cracks, straightness
and damage to the dowel pin holes and threaded ends. Cranks
are reground to exact specifications, micro-polished and
a thread chaser run on both ends.
VW
Flywheels - New or Reground German
 Only
German flywheel cores are first inspected for worn or damaged
teeth, dowel pin holes and clutch disc mating surface wear
to make sure it has not been worn or cut too deep. After
shot peening and sandblasting the seal area is polished,
the dowel pin hole area is faced to ensure proper mating to the
crank and then precision ground and polished to exact specifications.
JCS
Camshaft
 Profiled
off the Engle 100 grind (.420 x 278) the JCS reground german cam
idles smoothly yet gives a mild performance boost and low end
torque increase with a slightly higher lift and longer duration
than the stock cam.
Stock Style Heavy Duty Oil Pump
 Made
from die cast aluminum alloy the pump housing is fully machined
to exacting tolerances. Larger 30mm steel gears provide increased
oil pressure during low speed operation. Pumped oil volume is
increased by 30% - 40% over stock promoting lower operating temperatures.
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