Yamaha YZ450
Advanced Machining Services Yamaha YZ450 performance page. A vast array of OEM and aftermarket parts for your YZ450. 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 YZ450 engine rebuilds, crank rebuilds, transmission repair. Box it up and ship it.
YZ450 Cylinder Kit $249.00
- Hone cylinder
- Wiseco Piston kit
- JE & CP available
- gasket surfaces prepped
- Top end gasket set
- YLINDER NOT INCLUDED
YZ450 450 Cylinder Kit $429.00
- Nikasil cylinder
- Wiseco Piston kit
- JE & CP available
- Top end gasket set
- gasket surfaces prepped
- CYLINDER NOT INCLUDED
YZ450 Big Bore 470 Cylinder Kit $489.00 +2mm 470cc
- Bore & Nikasil cylinder
- Wiseco Piston kit
- JE & CP available
- Top end gasket set
- gasket surfaces prepped
- CYLINDER NOT INCLUDED
Yamaha YFZ450 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) cam timing, install new piston kit add $249.00
To split the case (crank & transmission work) includes top end, add $475.00
YFZ450 stock head kit $609.00
- Multi-angle valve job
- 5 stock replacement OEM valves
- new valve springs
- valve guides checked
- new valve stem seals
- gasket surfaces prepped
- HEAD NOT INCLUDED
YFZ450 Hi-performance head kit Stage I $1129.00
- Stage I porting
- Hotcams intake and exhaust
- 5 Kibblewhite valves
- Kibblewhite valve spring kit with titanium retainers
- Multi-angle valve job
- valve guides checked
- new valve stem seals
- gasket surfaces prepped
- HEAD NOT INCLUDED
YFZ450 Hi-performance head kit Stage II $1259.00
- Stage II porting
- Hotcams intake and exhaust
- 5 Kibblewhite valves
- Kibblewhite valve spring kit with titanium retainers
- Multi-angle valve job
- valve guides checked
- new valve stem seals
- gasket surfaces prepped
- HEAD NOT INCLUDED
Yamaha YFZ450 Top End kits
YFZ450 stock head kit $939.00
- Multi-angle valve job
- 5 stock replacement OEM valves
- new valve springs
- valve guides checked
- new valve stem seals
- CYLINDER & HEAD NOT INCLUDED
YFZ450 Cylinder kit
- Hone cylinder
- Wiseco Piston kit
- JE & CP available
- Top end gasket set
- 13:1 compression
- gasket surfaces prepped
YFZ450 Hi-performance top end kit Stage I $1349.00
- Wiseco Piston kit
- JE & CP available
- Hone cylinder
- 13:1 compression
- 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
- new valve stem seals
- gasket surfaces prepped
- CYLINDER & HEAD NOT INCLUDED
YFZ450 Hi-performance top end kit Stage II $1479.00
- Wiseco Piston kit
- JE & CP available
- 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
- new valve stem seals
- gasket surfaces prepped
- CYLINDER & HEAD NOT INCLUDED
