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Part number: 257965
Product Details
JE Pistons 257965 in our Pistons Deptartment
Products specifications
Block Height 9.78
Bore 4.5
Bore (in) 4.500 in.
Bore (mm) 114.300mm
CID 540
Comp Height 1.27
Comp Ratio @ 110cc 10:1
Comp Ratio @ 118cc 9.4:1
Comp Ratio @ 124cc 9.1:1
Compression Distance (in) 1.270 in.
Dome Volume -3
Gram Weight 617
Notes Oil rail support included.
Oversize 0.034
Pin Diameter (in) 0.990 in.
Piston Head Volume (cc) +3.00cc
Piston Material Forged aluminum
Piston Ring Thickness 1/16 in. x 1/16 in. x 3/16 in.
Piston Style Flat top, with single valve relief
Quantity Sold individually.
Rod 6.385
Stroke 4.25
Wrist Pin Style Press-fit or floating
JE Pistons
Flat Top
Oil Rail Support is Included
Set of 8 Pistons
Recommended RingSet: J100F8-4500-5

For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.

*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 Pistons are sold as matched sets.

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A
Great communication, super fast shipping, and product just as described. Very happy, thank you.
M
Best pricing I found anywhere on the part I needed, quick shipping, no hassle. Definitely going to be a repeat customer.
N
Installed a 5th wheel hitch in a F150 with a 5 1/2' bed. Autoplicity had the Sidewinder hitch I needed to put the swivel under the camper insead of at the hitch,also at a lower price than competitors with extremly reasonable shipping $14.38. I Placed the order on a Friday and the item shipped the same day. Very happy with the product and fast shipping.
N
Autoplicity had an item my vendor had on backorder for weeks in stock and shipped it very quickly. I'm glad i found this place on the web, and will be looking forward to doing business with them in the future!
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