i know titanium is way stronger...

Will the valve suck through the center on the aluminum Retainer ?
i have a set of aluminum retainers drove 250 miles still ok. Any out there gota war story aout aluminum retainers ? should i lose'em....

 

actually.. a lot of people say they don't like the TITANIUM retainers.. go into the itr forum there's a whole thing about this.

 

really depends on what you want to be able to do with the motor. i created a thread not that long ago about this discussion. i plan to rev to 9.5 k with jun 3's so i am not using the itr valvetrain. i'm going with the new ib spec valvetrain with titanium retainers.

 

b16a rev 8k or so.. probably got ITR i can get a set fpr $$20