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ULTRA-LIGHT FLAT TOP

This is our original Ultra Light piston. For Late Model Stock applications up to 400 hp. Piston accepts 1/16, 1/16, 3/16 rings
350 ULTRA LIGHT WEIGHT SERIES
Std Bore: 4.000
Ring package designed for: 1/16, 1/16, 3/16 Rings

Click here to see matching JE Pro Seal Head Gaskets!

Tech and Installation Tips
Valve Relief Diagram
Part # CID Bore Stroke Rod
Lgth.
Block
Ht.
Comp.
Ht.
Head Cubic Centimeters
58cc 64cc 76cc
Compression Ratio
Dome
Vol.
Gram
Wt.
Footnote Oversize Recom.
Ring Set
105038 357 4.030 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -2.0 374 A 0.030 J10008-4030-5
105041 357 4.030 3.500 5.700 9.000 1.550 11.6 10.8 9.4 -2.0 423 A 0.030 J10008-4030-5
105040 359 4.040 3.500 6.000 9.000 1.250 11.6 10.8 9.4 -2.0 387 A,M 0.040 J10008-4040-5

- Denotes part # has been issued a new part #. A list referencing old part #s to their new counterparts will be available shortly.


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