Quote:
Originally Posted by cycleguy55
I wouldn't run aluminum retainers unless it was an engine with frequent planned teardowns.
Titanium retainers have replaced aluminum as the preferred alternative for those seeking lighter weight. Aluminum has pretty much disappeared from the market - with good reason.
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Sorry to hijack the thread, but a question about retainers and locks...
I have the AFR Renegade 195 heads that come with the steel locks (part # 9007) but have chrome moly retainers (#8514). A suggested upgrade to these retainers are the titanium ones (#8515). Since I don't spin the motor over 6000 rpm and have .600 lift, do I need the titanium retainers? I don't have the problems listed in this thread - I have the CompCams Ultra Magnum rockers that have tons of clearance.
FYI - the springs are the AFR #8019 - 155# seat, 450# at 1.16, 0.650 max lift, 7200 max rpm.