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
- Includes 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.