Product Description Specifications Precision machined from 6AL4V titanium, these retainers feature better material consistency and bullet proof durability. These 7 degree retainers fit 11/32" valve engines with our 26915/26918 Beehive valve springs. Category: Engine Components>Valve Springs, Retainers Core: N LTL: N MPN: 788-16 Proposition 65: Y Special Order: Y