Main >> Valvetrain >> PRO-Line >> Spring Retainers PRO-Line- Spring Retainers Pro-Line Spring retainers are manufactured either from AISI4140 chrome moly steel or titanium alloy. The 4140 steel retainers are finished with black anodized for superior corrosion and wear resistance. The titanium alloy retainers are lightweight and stronger than steel for engine up to 10,000 RPM. Pro-Line spring retainers have a 10° angle for optimum load distribution and strength. Part No. Description Price SR-1250SA Steel retainer 1.250 x .870 x .735 $15 SR-1250SB Steel retainer 1.250 x .870 x .650 $15 SR-1400SA Steel retainer 1.400 x 1.060 x .690 $17 SR-1500SA Steel retainer 1.500 x 1.150 x .690 $19 SR-1500SB Steel retainer 1.500 x 1.095 x .710 $19 SR-1250TA Titanium retainer 1.240 x .870 x .735 $oon SR-1437TA Titanium retainer 1.437 x .1100 x .800 $oon SR-1437TB Titanium retainer 1.437 x .1100 x .700 $oon SR-1500TA Titanium retainer 1.500 x 1.180 x .870 $oon SR-1500TA Titanium retainer 1.500 x 1.180 x .870 $oon SR-1500TB Titanium retainer 1.500 x 1.135 x .835 $oon SR-1500TC Titanium retainer 1.500 x 1.135 x .728 $oon SR-1500TD Titanium retainer 1.500 x 1.120 x .730 $oon SR-1650TA Titanium retainer 1.625 x 1.150 x .660 $oon