Head gasket

Tiny
LAWABIDINGCITIZEN
  • MEMBER
  • 1990 CHEVROLET TRUCK
1990 Chev 5.7L why are the holes so small in the head gasket where the coolant passes through?
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Sunday, December 12th, 2010 AT 9:30 PM

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Tiny
MHPAUTOS
  • EXPERT
There is only a limited space for coolant to flow, the water jacket in the block dissipates the bulk of the excess heat, there is enough circulation to cater for the heat in the head, the use of a good quality coolant will stop any sludge from building up and blocking these ports, also if you look at how many transfer ports are in the heads, combine them, this is a fair size for water to circulate.

Mark (mhpautos)
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Tuesday, December 14th, 2010 AT 12:16 PM

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