Description
By purchasing a stage one engine kit your engine head will be ported and polished to help you achieve maximum horse power by allowing the proper amount of air into your engine. A precision valve job to seal in all the combustion pressure completes the process.
With this kit you will need to send in your head so that we can port and polish it.
Yoshimura Engine Service Stage 1 Includes:
• Port and Polish the Head
• SERDI Machine - Valve Seat Refacing