Tapout Tuning

LF4 Performance Tuning Specialists

ATS-V piston from Diamond Racing
Forged ATS-V piston from Diamond Racing
Diamond Racing Pistons Installed
ATS-V piston
Forged ATS-V piston

LF4 Forged Piston Set

$1,892.63

IN STOCK! Your order will ship today if it’s before 3:00 Ohio time on a business day, or next business day otherwise.

If you want to upgrade to forged pistons, we recommend increasing your compression ratio. The lower compression pistons would be best for our future Black Belt Performance Package with larger frame turbochargers.

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Description

OEM LF4 pistons weigh 434 grams and the pins weigh 147 grams, for a total weight of 581 grams.  Our custom manufactured Diamond Racing forged and coated pistons weigh 393 grams and the pins weigh 139 grams, for a total weight of 532 grams, which is an 8.4% weight reduction.

  • Manufactured by Diamond Racing in the U.S.
  • 2618 aluminum alloy
  • Gold ceramic coating on piston crowns
  • Gray Teflon coating on piston skirts
  • H13 tool steel piston pins with .185” wall thickness
  • Made in the USAIncludes Total Seal Advanced Profile ring set with 1.2 mm. steel top ring, 1.2 mm. second ring and 3.0 mm. oil ring.

We use a conventional AP Steel ring set with the 3.705 bore size. The 3.720 bore size uses a Gapless Top AP Steel ring set.

Additional information

Weight 7.5 lbs
Dimensions 21 × 11 × 4 in

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