The radiator cap keeps your system pressurized, which lowers the boiling point. I had to try and sound smart after looking so stupid.
__________________
'69 Chev Cust/10 swb, 350/700R4, 5"/6"
'70 Chev C10 swb, 67 front, 454/700r4, 4"/5"
'73 Chev stepper, 350/3 spd
'84 Chev K20 350/4 spd
'91 GMC 1500 Suburban 4x4, 350/700R4
|