1999 Pontiac Trans Am SLP Dyno Testing - Trans Slam
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It's important to have air pressure in the cylinder (80-120 psi; see air hose leading to the spark plug hole) to prevent dropping a valve while replacing the springs. We started the job with SLP's inexpensive valvespring removal/installation tool (PN 53306, $61.75). The kit also includes the spark-plug fitting adaptor for connecting compressed air to the cylinders. The basic tool gets the job done and is OK for a one-time swap at home, but professionals will opt for a more expensive set of custom tools to speed things up. View Related Article
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