Bolt-in cams for 88 CID engines with stock compression ration Great low and mid-range torque Lower lift allows them to be bolted into stock 96ö-106ö (EU: 2,44 m - 2,69 m) '06 engines with stock valve springs Strongest from 1000-4500 RPM 180 psi (EU: 12,41 Bar) cranking compression; no need for compression releases Made in the U.S.A.. CAM 509 GD 99-06