Description
Function of the Cylinder Head Bolts
Cylinder head bolts clamp the cylinder head to the engine block with precisely controlled torque, ensuring the head gasket seals correctly. Many modern engines use torque-to-yield (TTY) bolts that stretch during installation and must be replaced each time the head is removed. Reusing stretched bolts risks uneven clamping force, head gasket failure, coolant leaks, and compression loss. Always replace head bolts during a head gasket job for a reliable, long-lasting seal.
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