1964-69 Bolted Flywheel .This flywheel has been professionally rebuilt and bolted, pre-balanced, and resurfaced to specifications. A core charge is included in the price. Upon receipt of your rebuildable core,no bent ones or rusted out ones, you will receive a $40 refund. Please send core within 30 days of receiving your parts. If you have any questions about this item, contact us at the shop at 918-753-2486. Note: it is a good idea to balance this flywheel with your pressure plate for better performance.