3800 Valve Spring Retainers Model:Steel These neutral shafts eliminate the

These neutral shafts eliminate the HP loss incurred from creating this vibration

6 int duration

OLDSMOBILE ALERO 2002-2004

the stock PCM would only allow downshifting to 3rd

Using aluminum keeps these calipers 5 pounds lighter than the stock iron calipers

3800 Valve Spring Retainers Model:Steel These neutral shafts eliminate theUpdate June 2021: We are proud to announce our new and improved modified steel retainers. These retainers have the weight of titanium but the strength of our traditional steel; the new design weighs in at only 8 grams vs 11 grams on the old design. On a 3800 you're saving 36 grams of valvetrain weight with our new design! These modified retainers are recommended for anyone swapping to a heavier than stock valve spring. New style pictured in the