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Part#10045437 - Cylinder Head $999.00
This 2.5 special aluminum cylinder head is a race winning design
for the four-cylinder Pontiac aluminum "Super Duty" that's proven itself
in IMSA road racing and Competition Eliminator Series. This rugged,
lightweight head gives you Pontiac and NASCAR quality with plenty
of extra metal, and proven performance with totally redesigned, super
free-flowing ports. Oversize ductile iron seats and phosphorus bronze
guides are standard. Intake volume is 178cc. This head accepts standard four-cylinder
intake port centerline manifolds.
Part#10049801 - Super Duty Four High Port Special Aluminum Cylinder
Head $1315.00.14 This version of Pontiac's
Super Duty four-cylinder aluminum cylinder head's are designed for
maximum-effort competition engines. The intake runners and water jackets
are raised .670" to improve flow. In the Special High Port casting,
the two center intake ports are moved .800" closer together to straighten
the path to the valves. Both heads' rocker cover rails are raised .300",
and the exhaust ports are raised .600". The valve centerlines are relocated
to unshroud the valves, and the rocker stud holes are moved to match the
new valve locations. The valve seats will accept 1.94-2.08" intake valves
and 1.60-1.625" exhausts. The combustion chamber volume is 67cc. Technical
Notes: Valve guides are supplied but not installed. A template is provided
for redrilling headers to fit the revised exhaust flange bolt pattern. An
intake manifold must be fabricated to fit the High Port Special's port spacing.
Part#10038952 - Super Duty Four Head Gasket (Aluminum Heads) $
35.06 This composition head gasket was specifically engineered
for aluminum Super Duty cylinder heads. The wide portion of its stainless
steel fire rings faces the cylinder head to increase the sealing area
and prevent brinneling of the aluminum head's deck surface.
52860 Our Price: $249.95 87-88 4CYL
RECONDITIONED HEAD All reconditioned cylinder heads are magnafluxed
before being machined. Valves and valve seats are re-cut for a perfect
seal and are then installed with valve springs, retainers, keepers and new
valve seals. Cylinder heads are sold complete ready to bolt on. NOTE: Gaskets
not included
52883 Our Price: $289.95 84-86
4 CYL RECONDITIONED CYLINDER HEAD All reconditioned cylinder heads are magnafluxed
before being machined. Valves and valve seats are re-cut for a perfect
seal and are then installed with valve springs, retainers, keepers
and new valve seals. Cylinder heads are sold complete ready to bolt
on. NOTE: Gaskets not included
52884 Our Price: $549.00
84-86 4CYL NEW CYLINDER HEAD This new GM casting comes with new SI valves,
performance springs, alloy retainers and hardened performance valve keepers.
Cylinder head is completely assembled and ready for installation. (No Core
Charge) NOTE: Gaskets not included.
