This is a replacement bolt set for the 2.4l 2AZ-FE and 1AZ-FE motors only that will secure your head to block without the expense of retreading the block or Replacing the engine. Common problem after removing cylinder head. Aluminum block threads come out.

I am a veteran technician and repair shop owner. This is a proven solution without condemning the engine block. This kit will allow you to secure all head bolts to block. Replacement instructions included with purchase. Will not guarantee to correct cylinder head cracks or overheating damage.