400exJOE
03-26-2002, 05:23 PM
on page 257 in the new Dennis Kirk of road catalog, there is a page for a cam company called Hot Cams. They make them for a lot of dirt bikes and 400ex and raptor. They are only $132 w/o a core return! They say they will work with the stock valve springs on the 400ex. I am not sure about the rockers, but on the xr400 it says it works with the stock rockers and springs. They have different part numbers, but the specs are the same. They also have a stage 1 and 2 for most of the applications including the 400ex. Stage 1 "provides exceptional increase in mid-range and top-end power. Use stock valve springs." Stage 2 is "Engeneered for closed course and desert racing only. Uses stock valve springs."
Stage 1- Intake lift-9mm Intake duration-246 Exhaust lift-9mm Exhaust Duration-246.
Stage 2-Intake lift-8.8mm Intake duration 254 Exhaust lift-8.6mm Exhaust Duration-254.
How do these specs compare w/ other companies? Which would work better w/ my 440? Has anyone ever heard of Hot Cams B4?
Stage 1- Intake lift-9mm Intake duration-246 Exhaust lift-9mm Exhaust Duration-246.
Stage 2-Intake lift-8.8mm Intake duration 254 Exhaust lift-8.6mm Exhaust Duration-254.
How do these specs compare w/ other companies? Which would work better w/ my 440? Has anyone ever heard of Hot Cams B4?