Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) R01J003S and Idle (including IAC parameters

and Idle (including IAC parameters and Idle Spark)

Bellhousing Plate

7/16 to 7/8 in ID

The headlight should have the lens affixed with a clamp or other device to put pressure on the assembly for a minimum of 3 hours while the seal sets -preferably overnight

Proform Tall Valve Spring Height Micrometer; Range: 1.600" - 2.100" (For Most V8 Engines) R01J003S and Idle (including IAC parametersMeasure installed valve spring height conveniently and accurately. Simply install the height micrometer instead of a valve spring, and then rotate the clearly engraved dial to expand the tool to seat the valve, locks and retainer. PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM Parts (Specialty Auto Parts U. S. A., Inc.) is a leader in the High Performance Automotive Aftermarket by engineering