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Part number: 274643
Product Details
JE Pistons 274643 - Porsche
Products specifications
Bore 100mm
C/D 32.8mm
Comp Ratio 10.5:1
Dome CC 36.5
Gram Weight 491
Head CC 90
Oversize 5mm
Rod 127mm
Skirt Type R
Stroke 74.4mm

Designed for air-cooled 911 engines with a Nickel Ceramic bore, JE Porsche Pistons are machined from forged 2618 alloy for greater strength. The valve pockets are machined to accommodate high lift cams, and accept the stock stroke and rod length. The ring grooves are precision CNC machined for OEM style rings. (Except 2.7L)

*Application Specific Forgings for an Optimized, Uniform Crown Thickness
*Contact Reduction Groove to Minimize Frictional Drag
*Accumulator Groove for Increased Top Ring Stability and Sealing
*CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
*Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included
*JE ProSeal Piston Rings are included with your JE Pistons

JE Pistons are sold in matched sets.

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Shipped fast and accuratly within a week.
purchased two shocks for my truck, best price online , they were here within a week. I will definitely order from them again....thanks....
Best price I've seen online and the shipping is extremely fast. I would definitely use this site again for future automobile needs.
quick delivery of the parts I need to fix my jeep
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