CHEVROLET LS 4.070 BORE, 3.622 STROKE, 6.125 ROD LENGTH (EST 10.4 W/70CC EST 11.2 W/64CC -2.7CC FT PISTON SET 4.070 BORE)

CP-Carrillo Bullet pistons are designed specifically to fit all LS 15° heads. Pistons are proudly made in the USA from 2618 forgings and are suitable for nitrous oxide Superchargers or Turbos. Pistons feature special skirt design for low piston noise, 1.5mm steel gas nitride top ring, 1.5mm Napier second ring, 3.0mm oil ring and include .945 x 2.250 or .927 x 2.250 pins with.180 wall standard.
Compression Ratio w/ 68cc Head 10.6:1

About Livernois Motorsports

Livernois Motorsports & Engineering has become best-known for revolutionary tuning and high-end performance products for late model Ford, Mopar and GM vehicles. The company is proud of its deep roots in the automotive and motorsports industry dating back to its original founding in 1949. Since then the company has expanded its product line to include tuning and performance components for desert racing, SCCA and drag racing. Livernois Motorsports is proud to engineer, test and manufacture its products in the USA.

Carrillo Piston Features:

• Double Pin Oilers (opposed to single pin oilers), in conjunction with our annular reservoir, can add twice the amount of oil fromthe cylinder wall to the wristpin bore. This is a standard option on any piston that receives forced pin oiling.
• Lateral gas ports are horizontal slots in the top of the top ring groove and they provide a passage for combustion pressure to get behind and above the top ring, increasing ring seal with reduced radial
  rings. Lateral gasports are often used over the vertical option when carbon build up (which could clog vertical gasports) may be an issue.
• Vertical holes from the deck of the piston to the back of the top ring groove which allow combustion pressure to directly enter the top ring groove area for maximum ring seal. When not under load, the ring has
  normal tension for reduced friction.These are most commonly used for drag race applications.
• Broaches are horizontal slots in the pin bore designed to allow oil to enter between the wristpin and pinbore. Broaches are also used to accommodate the wristpin shape under compression, as it can be come somewhat oval and needs room in order to alleviate galling.