This is a new exhaust manifold heat riser bi-metal spring. This is correct for 64-68 Pontiac models. This is used on the passenger side exhaust manifold. This is a little wider that the originals at .385", but still functions the same. Incudes as shown.
Per California Law (Prop 65) we are required to put the following warning on all our listings.
WARNING: This product can expose you to chemicals, including lead, which is know to the state of California to cause cancer, birth defects and or reproductive harm - www.P65Warnings.ca.gov