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Includes: Contact Reduction Grooves, Pin Fitting & Wire Locks, Double Pin Oilers, Lateral Gas Ports, Accumulator Groove.   JE Pistons - SB Chevy All Pro 13°/GB2000 F.S.R. Race Pistons Includes: Pistons, Pins, Double Spiro Locks These pistons are designed using our FSR (Forged Side Relief), forgings featuring internal and external cavities to minimize weight while providing a more rigid construction. The FSR design reduces skirt width helping to minimize piston contact with the cylinder wall that can cause friction and power loss. With thousands of race miles logged in the most demanding applications like NASCAR and the IRL, these pistons provide the ultimate combination of low friction lightweight design with increased stability and strength.   (Tech note: In extreme horsepower applications the use of oil squirters may be required) ** CLICK HERE Now for the Absolute LOWEST Pricing on JE Pistons! (Our prices are so low they won't let us show you online, so click here or call us right now at (603) 378-0090 - you'll be glad you did!)

Bore Stroke Rod Length C/H Head C.U. Dome Vol. Grams Notes Piston Part # Price/ Set Ring # (J70008-) 45cc 50cc 55cc All PRO 13° / GB2000 4.125 3.875 6.000 1.062 16.3 15.1 14.0 -1.0 417 B, M 218582 $1092 4125-5 $205 4.130 3.875 6.000 1.062 16.4 15.1 14.0 -1.0 423 B, M 218583 $1092 4130-5 $205 4.125 3.800 6.000 1.100 16.3 15.0 13.9 0.0 427 B, M 218580 $1092 4125-5 $205 4.125 3.800 5.850 1.250 16.3 15.0 13.9 0.0 449 M 218581 $1092 4125-5 $205

Foot Notes: B = Oil Rail Support is Included M = Made to order

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