I just put in a new motor with cc503 cam and ported heads. Now its running hot. I bled the system several times, changed the t-stat(160), I cant find any leaks. The fans are working. Anyone have an idea for me?

 

does it just run hot or does it totally overheat to the point were its over 260 degrees?

 

It will get to 260 if I let it. I does take a little while to get there. I turn it off when it gets to around 235.

 

Any thoughts on this.

 

Perhaps the waterpump is not churning...Would make sense since it just slowly heats up. Doest anything change when the T-stat opens around 160? Such as does the coolant sensor stay stationary for a few minutes then continue climbing?

 

yes It does stay stationary then climbs.