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NASCAR pistons that are coming up used on the 'bay all have the wire locks. The Spirolocks are going away. Double Tru-Arcs went away before them.

r.

well I ok with the wire lock after wrestling with these wire to get them in place . I think the wire should be just a tad larger and the grove a tad deeper .



Difficult to install also means difficult to get out too, a good thing. I'll use oversize locks in some high piston speed cases, put the gaps at 6 o'clock.

I have already installed the wire keepers and I put them just past the notch that is used to remove the wire if necessary .. thanks for the info .