CP CARRILLO LS7 PISTON SET - 4.125" BORE - 4.000" STROKE - 6.125" ROD - 4.6CC FLAT TOP - BLSR1204-STD-8

Features:

• Pistons manufactured from 2618 alloy for strength and durability
• Balanced to + or – 1 gram
• Dual forced pin oilers
• Contact reduction grooves
• Accumulator Grooves
• Contemporary ring set included (Comes standard with 1.5mm x 1.5mm x 3.0mm ring pack that consists of High-grade Steel Gas Nitrided barrel faced tops with Taper Hook Groove Napier second rings and a 3-piece soft nitrided rail flex vent oils, specially designed for severe duty applications such as nitrous blowers and turbo engines.)
• Forged side relief
• Chromoly wrist pins with wire locks
• FEA designed forging
• Tight tolerances
• USA made

Note on rod small end widths - These piston forgings have a minimum pin boss span of 1.060, this is because they also use a 2.250 long wrist pin, to this gives the wrist pin .595 of engagement In the pin bore. Many aftermarket rods including BTR's 6.125 LS rod set (BTRROD6125H1-8) have a small end width of 1.060 or more and will need to have the small end narrowed by a respectable machine shop by .080-.100" for proper fitment. Carrillo & Bullet rods use a .900-1.000 wide small end, so there is no need for additional small end clearancing.

Features