I own a ve r8 clubby ls3 6.2l just recently built the motor and put in a lumpy cam with a harrop otr
issue I’m having with the motor after the rebuild is overheating when the high speed fans kick in

I have taken it to numerous places to try and solve the problem but can’t seem to fix it. It has been tuned by sams performance motor has been built correctly and properly…

Can anyone help me with this issue or recommend something