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Part number: 170685
Product Details
JE Pistons 170685 in our Pistons Deptartment
Products specifications
Block Height 9
Bore 4.04
Bore (in) 4.040 in.
Bore (mm) 102.616mm
CID 359
Comp Height 1.25
Comp Ratio @ 58CC 11.6:1
Comp Ratio @ 64cc 10.8:1
Comp Ratio @ 76CC 9.4:1
Compression Distance (in) 1.250 in.
Dome Volume -1.8
Gram Weight 328
Oversize 0.04
Pin Diameter (in) 0.927 in.
Piston Head Volume (cc) +1.80cc
Piston Material Forged aluminum
Piston Ring Thickness 1.2mm x 1.2mm x 3.0mm
Piston Style Flat top, with two valve reliefs
Quantity Sold individually.
Rod 6
Stroke 3.5
Wrist Pin Style Press-fit or floating
JE Pistons
23deg Inverted Dome
Superfly Gas Ported
FSR Forging
Fits 3.480 and 3.500 Stroke
Made To Order
Set of 8 Pistons
Recommended RingSet: J93008-4040-5

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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Am happy with price, lower than anywhere else. Product is perfect and shipping was fast. Had to call because website was down while price increases were uploaded, cost an extra $20 but still worth the savings. Would definitely buy from again.
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