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Go Race Parts Presents...
Our Special on JE Pistons Performance Products!
This listing is for JE Pistons Wire Lock
Part Number 866-063-MW
The top engine builders in NASCAR, ALMS, NHRA, AMA Supercross and other racing organizations choose JE Pistons over any other brand. Why? JE Pistons is always researching, developing, and extensively testing unique materials and piston designs. Those designs are CNC-machined into pistons that meet exacting tolerances within millionths of an inch. That’s why JE is the only performance piston manufacturer to earn a QS-9000 certification! When you install JE Pistons, rings, and wrist pins under your hood, you know you’re on the leading edge of engine technology.
Most JE shelf pistons include double spiro locks as standard equipment. These locks are installed by spreading the lock between 1/8" and 1/4" and rotating the lock into the groove in the piston pin boss. Wire locks are installed in much the same manner but require chamfered wrist pins. Wire locks tend to spread side loads over more of the piston pin boss area and are considered to be a stronger method of holding the pin in place. Hook wire locks have a built in hook at the end gap. The purose for this style of wire lock is to prevent rotation within the lock groove itself. Tru arc locks fall between these two and can be used with the stock sharp edge wrist pins. The advantage of tru-arc locks is ease of installation and they can be re-used unlike spiro locks, however they are not recommended for medium to high horsepower applications.**** International Customers Welcome ****
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