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Part number: 207421
Product Details
JE Pistons 207421 Pistons
Products specifications
Block Height 9.585
Bore 4.07
Bore (in) 4.070 in.
Bore (mm) 103.378mm
CID 416
Comp Height 1.46
Comp Ratio @ 60cc 12.3:1
Comp Ratio @ 65CC 11.6:1
Comp Ratio @ 70CC 10.9:1
Compression Distance (in) 1.460 in.
Dome Volume -6.8
Gram Weight 489
Oversize 0.03
Pin Diameter (in) 0.927 in.
Piston Head Volume (cc) +6.80cc
Piston Material Forged aluminum
Piston Ring Thickness 1/16 in. x 1/16 in. x 3/16 in.
Piston Style Flat top, with two valve reliefs
Quantity Sold individually.
Rod 6.125
Stroke 4
Wrist Pin Style Press-fit or floating
JE Pistons
Flat Top
Set of 8 Pistons
Recommended RingSet: J100F8-4070-5

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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Fast shipping cheapest I could find, easy to deal with, great product
So far so good.
The item has not been delivered yet. But the email updates are great. And I found this much cheaper than elsewere.
It took a day or two for them to ship my order, but it arrived quickly once shipped. The price was by far the best available.
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