HARLEY - DAVIDSON HIGH PERFORMANCE CYLINDER HEAD DESIGN AND ENGINE MODIFICATION SHOP
INTAKE MANIFOLDS

intake manifolds - JET intake manifolds - manifolds

 

Johnson Engine Technology, Inc.™

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J.E.T. modified intake manifold

J.E.T. HIGH VELOCITY INTAKE MANIFOLDS

modified manifold for harley motorcycles

 

At Johnson Engine Technology we CNC manufacture our own HIGH VELOCITY intake manifolds for Big Twins and Twin Cams. The JET intake manifold is a HIGH VELOCITY HIGH VOLUMEMETERIC AIR-FLOW intake manifold that is a must have for any type of cylinder head.  Because of the HIGH VELOCITY, the fuel will stay in an atomized state causing the engine to run cooler and detonate less.    Because the intake manifold is shaped and sized correctly it improves the volumeteric air-flow rate into the cylinder head enabling your morotcycle to make more horsepower and torque through out its entire RPM range.  Our manifold will work with stock cylinder heads, S&S cylinder heads, and J.E.T. cylinder heads, and any carburetor of your choosing.

JET manifolds

Evolution    |    Sportster    |    Twin Cam    |    General

 

Evolution ( EVO ) Twin Intake Manifolds
PART
J.E.T. Part #
Price

Evolution high velocity J.E.T. intake manifold (CV carb)

This intake manifold is designed for a harley davidson Evoltution application and is J.E.T. performance modified to work with a 40, or 44 mm CV carburetor.
(Please specify application, seal not included, customer must a specify needfor one)

EIMP.900

159.00

Evolution high velocity J.E.T. intake manifold (S&S E carb)

This intake manifold is designed for a harley davidson Evolution application and is J.E.T. performance modified to work with an S&S "E" carburetor.
(vacuum tap not included, customer must specify need)

EIMP.901

132.50

Big Twin high velocity J.E.T. intake manifold (S&S G carb)

This intake manifold is designed for a harley davidson Evolution application and is J.E.T. performance modified to work with an S&S "G" carburetor.
(vacuum tap not included, customer must specify need).

EIMP.902

191.00

Sportster Intake Manifolds

Sportster intake manifold ported

This H-D Sportster intake manifold is J.E.T. ported for highest performance.
(customer provided)

SIMP.905

69.00

Sportster intake manifold welded and ported

This H-D Sportster intake manifold is J.E.T. welded and ported for highest performance.
(customer provided)

SIMP.906

175.00

Twin Cam Manifolds

Twin Cam high velocity J.E.T. intake manifold (CV carb)

This intake manifold is designed for a harley davidson Twin Cam application and is J.E.T. performance modified to work with a 40 or 44 mm CV carburetor
(Please specify application, seal not included, customer must specify a need for one).

TIMP.907

180.00

Twin Cam high velocity J.E.T. intake manifold (S&S E carb)

This intake manifold is designed for a harley davidson Twin Cam application and is J.E.T. modified for an S&S "E" carburetor.
(vacuum tap not included, customer must specify need)

TIMP.908

154.00

Twin Cam high velocity J.E.T. intake manifold (S&S G carb)

This intake manifold is designed for a harley davidson Twin Cam application and is J.E.T. performance modified for an S&S "G" carburetor.
(vacuum tap not included, customer must specify need)

TIMP.909

212.00

Other Intake Manifold Parts
S&S "E" insulator (1/4" thick, for breather heads)

IMP.915

8.00

S&S "G" adapter (1.1" thick tapered)

IMP.916

100.00

XL intake (stock H-D)

IMP.917

48.00

Carb spacers

IMP.918

1.00

Spacers for air cleaner mounting. Specify application

IMP.919

5.00

S&S "E" adaptor (1/2" thick)

IMP.920

45.00

Vacuum Tap

IMP.921

6.50

40/44 mm CV carburetor to intake manifold seal

GP.819

6.00

Intake manifold to cylinder head gaskets

GP.820

1.80

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