2004 Chevrolet Impala Base 6 Cyl 3.40L
Can I use longer head bolts
I got a head gasket kit with head bolts the longer bolts are same length as the original however the short bolts are a eighth of an in longer than original will they still work
Do not take chances with using the slightly longer cylinder head bolts - due to risk of incorrect clamp load. If the longer head bolts are installed the extra length may not allow the bolt to fully seat, or enlongate when the torque specification is reached.