EVOLUTION BIG TWIN Engine Kits


INTRODUCING THE NRHS/AXTELL 85 CUBIC INCH BOLT-ON BIG BORE KIT FOR EVOLUTION BIG TWINS!

From $950.00

 

Looking for big-bore torque and horsepower without big-bore expense? You’ve come to the right place! The NRHS/Axtell 85 inch big bore kit will bolt right on to your Evolution Big Twin with no case boring required! Kits include a pair of premium quality Axtell cylinders in your choice of cast-iron or all-aluminum nik-a-sil plated construction, NRHS Hurricane forged pistons with tool steel wrist pins, Total Seal rings, and Cometic EST gaskets. Available as a top end kit only or in complete packages with matched components.

 

These kits are available with either angle dome or standard Evo Big Twin dome pistons. The angle dome pistons greatly improve combustion efficiency, but require a 30 degree cut in the Evolution Big Twin chamber to accomodate them. NRHS can provide this service. The standard dome pistons work in a standard Evolution Big Twin chamber with no modifications.

 

Please note: due to reduced demand, these kits may take a little longer to deliver. Please call for current lead times.

 

Description

Highlighted Fins

Standard Fins

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Natural Aluminum Finish

10.5:1 angle dome pistons, pins, clips, rings

head and base gaskets

note: chamber work required

004 -NA3563EV8AK-H

$1270.00

004-NA3563EV8AK

$1220.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Natural Aluminum Finish

10.5:1 standard dome pistons, pins, clips, rings

head and base gaskets

note: works in standard Evo Big Twin chamber

004 -NA3563EV8K-H

$1270.00

004-NA3563EV8K

$1220.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Silver Powder Coat Finish

10.5:1 angle dome pistons, pins, clips, rings

head and base gaskets

note: chamber work required

004 -NA3563EV8AK-SH

$1370.00

004-NA3563EV8AK-S

$1320.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Silver Powder Coat Finish

10.5:1 standard dome pistons, pins, clips, rings

head and base gaskets

note: works in standard Evo Big Twin chamber

004 -NA3563EV8K-SH

$1370.00

004-NA3563EV8K-S

$1320.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Black Powder Coat Finish

10.5:1 angle dome pistons, pins, clips, rings

head and base gaskets

note: chamber work required

004 -NA3563EV8AK-BH

$1370.00

004-NA3563EV8AK-B

$1320.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Aluminum Cylinders

Black Powder Coat Finish

10.5:1 standard dome pistons, pins, clips, rings

head and base gaskets

note: works in standard Evo Big Twin chamber

004 -NA3563EV8K-BH

$1370.00

004-NA3563EV8K-B

$1320.00

Bolt-on big bore kit, 85ci

3-9/16 bore Axtell Cast Iron Cylinders

Black Powder Coat Finish

10.5:1 angle dome pistons, pins, clips, rings

head and base gaskets

note: chamber work required

n/a

004-NA3563EV8AIK-B

$950.00

Bolt-on big bore kit, 85ci

3-9/16 bore Cast Iron Cylinders

Black Powder Coat Finish

10.5:1 standard dome pistons, pins, clips, rings

head and base gaskets

note: works in standard Evo Big Twin chamber

n/a

004-NA3563EV8IK-B

$950.00


 


97 AND 106 CUBIC INCH KITS FOR EVOLUTION BIG TWIN

From $950.00

 

Are you an Evolution Big Twin owner seeking the ultimate in streetable torque and horsepower from your bike? You can get there with one of these kits! Premium quality Axtell cylinders in your choice of cast iron or all-aluminum nik-a-sil plated construction, NRHS or Axtell forged pistons, tool steel wrist pins, and rings, and Cometic EST gaskets all add up to what we believe is the BEST big-bore engine kits available. Note: these kits require the engine to be disassembled and the cases to be bored. We do not recommend installation of these kits in 1995 and older Evolution engines.

 

Please note: due to reduced demand, these kits may take a little longer to deliver. Please call for current lead times.

 

Description

Highlighted Fins

Standard Fins

Big bore kit, 97ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Natural Aluminum Finish

10:1 pistons, pins, clips, rings

head and base gaskets

004-204040-H

$1410.00

004-204040

$1360.00

Big bore kit, 97ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Silver Powder Coated Finish

10:1 pistons, pins, clips, rings

head and base gaskets

004-204040-SH

$1510.00

004-204040-S

$1460.00

Big bore kit, 97ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Black Powder Coated Finish

10:1 pistons, pins, clips, rings

head and base gaskets

004-204040-BH

$1510.00

004-204040-B

$1460.00

Big bore kit, 97ci (case boring required)

3-13/16 bore Axtell Cast Iron Cylinders

Black Powder Coated Finish

10:1 pistons, pins, clips, rings

head and base gaskets

n/a

004-200040-B

$950.00

Big bore stroker kit, 106ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Natural Aluminum Finish

10.5:1 pistons, pins, clips, rings

head and base gaskets

Designed for 4-5/8" stroke crankshaft (not included)

004-204048-H

$1410.00

004-204048

$1360.00

Big bore stroker kit, 106ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Silver Powder Coated Finish

10.5:1 pistons, pins, clips, rings

head and base gaskets

Designed for 4-5/8" stroke crankshaft (not included)

004-204048-SH

$1510.00

004-204048-S

$1460.00

Big bore stroker kit, 106ci (case boring required)

3-13/16 bore Axtell Aluminum Cylinders

Black Powder Coated Finish

10.5:1 pistons, pins, clips, rings

head and base gaskets

Designed for 4-5/8" stroke crankshaft (not included)

004-204048-BH

$1510.00

004-204048-B

$1460.00

Big bore stroker kit, 106ci (case boring required)

3-13/16 bore Axtell Cast Iron Cylinders

Black Powder Coated Finish

10.5:1 pistons, pins, clips, rings

head and base gaskets

Designed for 4-5/8" stroke crankshaft (not included)

n/a

004-200048A-B

$950.00


 

80 CUBIC INCH STAGE 1 KIT FOR EVOLUTION BIG TWIN

Only $1325.25

 

For the value conscious Evolution Big Twin owner seeking serious streetable performance from his ride, you can’t do better than the NRHS Stage 1 engine kit! NRHS will precision bore and hone your cylinders to 3.515” as well as port your cylinder heads and intake manifold. We match that work with a set of premium quality NRHS Hurricane forged pistons and tool steel wrist pins, Total Seal rings, Cometic EST gaskets, and a programmable ignition module. It all adds up to one thing: PERFORMANCE, without breaking the bank!

 

Description

Contents

Part Number

Stage 1 engine kit, 80”

Bore & hone cylinders to 3.515”

10.5:1 pistons, pins, clips, rings

Stage 1 head prep

Complete Top End Gasket Set

Programmable Performance Ignition

005-NR3515EV8S1EK

$1325.25