Dibbons
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I would not feel comfortable bending them all out of shape, but maybe he has a point there.
Crazy Spriolox Installation Video?
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Why? That's how you put them in. I don't stretch them that much, but that's how I've done it for 35+ years. I build a lot of engines. I just removed a set of these from one of my race engines so I could get the pistons off the rods and send them out for skirt coating.
Another u-tube idiot video.
I say thanks, because you saved me looking at it....stupid video must mean an Uncle Tony or similar moron.
Not only did he destroy all of the spiro-lox, but he also can't count either. Installs one, and has 17 more to go???? What is he working on, a V8.125?
Must be Uncle Tony's red-headed step-cousin.
I didn't think it rated down there with unvle tony, he's a moron. This guy just stretched the spirolox a little more than I prefer, but the overall concept of how to install them is correct. They do require 4 for each piston. Somewhere there is an engine running around with only 16 in it. Ask me how I know.I say thanks, because you saved me looking at it....stupid video must mean an Uncle Tony or similar moron.
icetech
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when i did my ford stroker i would just use a small screwdriver to get the end of the lock pushed out, get it into the grove then just walk the rest in. The way he's doing it is fine i'm sure.. but... not gonna do it
You are only supposed to open up the Spiro-Lox just enough to install it, and any more deforms it and could wind out. Also, not all pistons use 4, the majority of the ones I have done are only one per side, just depends. You split a little, install the leading edge into the grove, then lifting up on the leading coils so that they won't push into the piston (which prevents it from installing) and using a small screwdriver spiral it around pushing it into the groove. You just don't need to bend it out of shape to install properly.
Dibbons
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I just installed some Spiroloks in aftermarket cast replacment full-floating pistons (.040" over with four valve notches) for a 340. Although the package of spirolok has 32 pieces, I don't see any room in the narrow piston groove to insert two per side (they measure 1mm thick). Part number used: Howard Cams Spirolok, .975-1.00" HRC4501. (I read on another forum thread someone else installed another smaller size HRC4500 on their 340).
Thanks, I know how to do it. I have never had a set of pistons that didn't use 4. There is always the next set tho.
Dibbons
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Just out of curiosity, what piston manufacturer(s) uses the 4 lock system?
Probe, DSS, Ross, Diamond, mahle
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