570-339-5898

Yamaha YZ450F

Advanced Machining Services Yamaha YZ450F performance page. A vast array of OEM and aftermarket parts for your YZ450F. Head kits, Cylinder kits, Engine kits, seats and guides replaced, cams, valves and spring kits, multi angle valve jobs, oversized valves installed, porting, big bore head mods., cylinder boring/honing, big bore kits. Advanced Machining Services, Yamaha YZ450F engine rebuilds, crank rebuilds, transmission repair. Box it up and ship it.

YZ450F Cylinder Kit  $249.00

  • Hone cylinder
  • Piston kit
  • Top end gasket set
  • Gasket surfaces preped
  • 12.5:1 Compression
  • 13.5:1 Compression
  • CYLINDER NOT INCLUDED

YZ450F 450 Cylinder Kit  $459.00

  • Hone cylinder
  • Piston kit
  • Top end gasket set
  • Gasket surfaces preped
  • 12.5:1 Compression
  • 13.5:1 Compression
  • CYLINDER NOT INCLUDED

YZ450F Big Bore 470 Cylinder Kit  $479.00

  • Bore & Nikasil
  • Piston kit
  • Top end gasket set
  • Gasket surfaces preped
  • 13.5:1 Compression
  • CYLINDER NOT INCLUDED

YZ450F Head Kits

YZ450 Head Kit  $619.00

  • Multi-angle valve job
  • 5 stock replacement OEM valves
  • new valve springs
  • Valve guides checked
  • New valve stem seals
  • Valve lash set
  • Gasket surfaces prepped
  • HEAD NOT INCLUDED

YZ450F Hi-performance head kit Stage I  $1119.00

  • Stage I porting
  • Stage I Hotcams
  • 5 Kibblewhite valves
  • Valve spring kit
  • Multi-angle valve job
  • Valve guides checked
  • Valve lash set
  • New valve stem seals
  • Gasket surfaces prepped
  • HEAD NOT INCLUDED

YZ450F Hi-performance head kit Stage II  $1249.00

  • Stage II porting
  • Stage II Hotcams
  • 5 Kibblewhite valves
  • Valve spring kit
  • Multi-angle valve job
  • Valve guides checked
  • Valve lash set
  • New valve stem seals
  • Gasket surfaces prepped
  • HEAD NOT INCLUDED
yz450f head kit
yz450f head kit
yfz450_head_kit

YZ450F Top End Kits

YZ450 Head Cylinder Kit  $919.00

  • Multi-angle valve job
  • 5 stock replacement OEM valves
  • New valve springs
  • Valve guides checked
  • New valve stem seals
  • Valve lash set
  • Piston kit
  • Hone cylinder
  • Top end gasket set
  • Gasket surfaces prepped
  • CYLINDER & HEAD NOT INCLUDED

YZ450F Hi-performance head kit Stage I  $1349.00

  • Piston kit
  • Hone cylinder
  • Stage I porting
  • Hotcams intake and exhaust
  • 5 Kibblewhite valves
  • Kibblewhite valve spring kit with titanium retainers
  • Top end gasket set
  • Multi-angle valve job
  • Valve guides checked
  • Valve lash set
  • New valve stem seals
  • Gasket surfaces prepped
  • CYLINDER & HEAD NOT INCLUDED

YZ450F Hi-Performance Top End Kit Stage II  $1479.00

  • Piston kit
  • Hone cylinder
  • Stage II porting
  • Combustion Chamber mod.
  • Hotcams intake and exhaust
  • 5 Kibblewhite valves
  • Kibblewhite valve spring kit with titanium retainers
  • Top end gasket set
  • Multi-angle valve job
  • Valve guides checked
  • Valve lash set
  • New valve stem seals
  • Gasket surfaces prepped
  • CYLINDER & HEAD NOT INCLUDED
yz450f head kit
yz450f head kit
yfz450_head_kit
Yamaha YZ450F Motor Jobs

Don’t want to dig into the motor, no problem, box it up and ship it. We’ll do the top end (head & cylinder) set valve lash, cam timing, install new piston kit add $249.00

To split the case (crank & transmission work) includes top end, add $475.00

Listed above is a selection of our more popular kits.You may have some of these parts, or, have some of this work done. We can custom tailor a kit to fit your specific needs. Give us a call for an estimate, and, Thanks for stopping by…hope to hear from you soon.
  • Aluminum Welding
  • Boring
  • Sleeving
  • 4 Stroke Specialist
  • Porting 2 & Stroke
  • Race Tech Suspension

EST 1986

Phone: 570-339-5898

Please leave a message with your name, area code and phone number.

Prices subject to change without notice.

SHIP ALL PARTS TO:
Advanced Machining Services LLC

5 Main St.
Mount Carmel, PA 17851

HOURS OF OPERATION
Monday thru Friday 9:00 to 5:30 EST
Saturday 9:00 to 1:00 EST

Building performance engines since 1986

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