VALVE SPRING RETAINERS Engine Pro chrome moly steel retainers are designed to handle high pressures developed by new large diameter valve springs. Our retainers are manufactured to precise tolerances to ensure the springs are located properly. Available for 7 degree and 10 degree valve locks. 4140 Chrome Moly Steel Alloy CNC Machined Heat Treated Black Oxide Finish       KEEPER VALVE DIMENSIONS PART # SPRING O.D. SPRING HEIGHT DEGREE STEM SIZE A B C 03-1000-16 1.250 STD 7 11/32 1.245 .865 .680 03-1001-16 1.250 +.050 7 11/32 1.245 .865 .680 03-1003-16 1.437/1.550 STD 7 11/32 1.440 1.050 .700 03-1002-16 1.437/1.550 STD 10 ALL 1.440 1.050 .700 03-1005-16 1.437/1.550 STD 7 3/8 1.440 1.050 .700 03-1006-16 1.437/1.500 STD 10 ALL 1.400 1.060 .690 03-1007-16 1.500/1.550 +.100 10 ALL 1.500 1.115 .690 03-1008-16 1.550 +.100 10 ALL 1.500 1.105 .710 03-1009-16 1.550 +.100 10 ALL 1.500 1.120 .705 03-1010-16 1.437/1.550 +.100 7 11/32 1.440 .1.050 .700 03-1011-16 1.055 STD 7 8mm 1.030 0.640 BEEHIVE 03-1012-16 .959 STD 7 STOCK .930 0.630 BEEHIVE 03-1013-16 1.055 STD 7 11/32 1.030 0.640 BEEHIVE 03-1014-16 1.095 STD 10 ALL 1.050 0.640 BEEHIVE 03-1015-16 1.055 STD 7 8mm 1.030 0.640 BEEHIVE   TITANIUM VALVE SPRING RETAINERS Engine Pro titanium valve spring retainers are engineered to perform under the most extreme conditions and are inspected to ensure precise tolerances. ▪ Manufactured from 6AL4V titanium alloy ▪ Made in USA – your assurance of quality ▪ Light weight ▪ Machined and polished finish ▪ Call for other sizes and applications Download Titanium Retainer Sales Sheet     SPRING STEM   DIMENSIONS PART # SPRING O.D. TYPE SIZE AA B C D 03-1730-16 1.437/1.500 DOUBLE ALL 1.437 1.065 .700   03-1731-16 1.500/1.550 DOUBLE ALL 1.437 1.100 .800   03-1732-16 1.500/1.550 DOUBLE ALL 1.500 1.110 .710   03-1733-16 1.625 DOUBLE ALL 1.500 1.180 .765   03-1736-16 1.500/1.550 TRIPLE ALL 1.500 1.135 .835 .635 03-1739-16 1.625 TRIPLE ALL 1.500 1.180 .870 .635 03-1735-16* 1.625 TRIPLE ALL 1.500 1.180 .870 .635 03-1794-16 1.300 BEEHIVE ALL 1.050 .640     *+.050 installed height   over #03-1739

NEW! Nitro Black
High Performance Valves

Engine Pro's proprietary liquid nitriding process creates a high performance 21-4N valve that is smoother, stronger and more corrosive resistant than traditional chrome plated Stainless valves.

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