Honda TRX400EX
Advanced Machining Services Honda 400EX performance page. A vast array of OEM and aftermarket parts for your 400EX. 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, Honda 400EX engine rebuilds, crank rebuilds, transmission repair. Box it up and ship it.
400EX Cylinder Kit $239.00
- Bore & Hone cylinder service
- Wiseco Piston kit 10:1 compression
- 11:1 compression add $15.00
- Top end gasket set
- CYLINDER NOT INCLUDED
400EX 440 Big Bore Cylinder Kit $459.00
- Bore & Hone cylinder kit
- 440 Sleeve
- Sleeve installation
- Wiseco Piston kit
- CYLINDER NOT INCLUDED
400EX Motor Jobs
We’ll do the top end (head & cylinder) set valve lash, cam timing, install new piston kit add $249.00 to below prices.
To split the case (crank & transmission work) includes top end, add $475.00 to below prices.
400EX HEAD KITS
400EX Stock Head Kit $175.00
- Multi-angle valve job
- Cut valves and seats
- Valve springs checked
- New valve stem seals
- Valve guides checked
- Gasket surfaces prepped
- HEAD NOT INCLUDED
400EX Hi-performance head kit Stage I $609.00
- Stage I porting
- Kibblewhite Black Diamond valves
- Stage I Hotcam
- Multi-angle valve job
- Valve guides checked
- Valve springs checked
- New valve stem seals
- Gasket surfaces prepped
- HEAD NOT INCLUDED
400EX Hi-performance head kit Stage II
$944.00
- Stage II porting
- 1mm over Kibblewhite Black Diamond valves
- Stage II Hotcam
- Kibblewhite spring kit
- CDI revbox
- Multi-angle valve job
- Valve guides checked
- New valve stem seals
- Gasket surfaces prepped
- HEAD NOT INCLUDED
400EX Stock Top End Kit $395.00
- Bore & Hone cylinder service
- Wiseco piston kit 10:1
- 11:1 compression add $15.00
- Multi-angle valve job
- New valve stem seals
- Valves cut
- Valve springs checked
- Valve guides checked
- Gasket surfaces prepped
- CYLINDER & HEAD NOT INCLUDED
400EX Hi-performance top end kit Stage I
$819.00
- Bore & Hone cylinder service
- Wiseco Piston kit 11:1
- Stage I porting
- Kibblewhite Black Diamond valves
- Stage I Hotcam
- Top end gasket set
- Multi-angle valve job
- Valve guides checked
- Valve springs checked
- New valve stem seals
- Gasket surfaces prepped
- CYLINDER & HEAD NOT INCLUDED
400EX Hi-performance top end kit Stage II 440
Big Bore $1429.00
- Bore & Hone cylinder service
- 440 sleeve installed
- Wiseco Piston kit
- Stage II porting
- 1mm over Kibblewhite Black Diamond valves
- Stage II Hotcam
- Kibblewhite spring kit
- CDI revbox
- Clutch kit
- Multi-angle valve job
- Valve guides checked
- New valve stem seals
- Gasket surfaces prepped
- CYLINDER & HEAD NOT INCLUDED
400EX 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 above prices.
To split the case (crank & transmission work) includes top end, add $475.00 to above prices.
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.
