ARP Pro Series Cylinder Hex Head Bolt Kit, 2009-2013 LS9ARP Pro Series Cylinder Head Bolt Kits The Pro Series cylinder head bolts from ARP are cold forged to ensure molecular integrity. They are heat treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi. The Pro Series are also available with hex and 12 point heads. All kits come complete with hardened parallel washers for even load distribution and accurate torque readings. Chevrolet LS Gen IV 6. 2L (LS9) small block,

It is intended for vehicles that are either NOT equipped with AFM and NPP or have the AFM and NPP disabled

-16 fins per inch

Dual free-flowing mufflers are used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque

This Ultra Lightweight Pulley Upgrade for ZPE Pulley Hub system

Red Or Black

The panels mount in the factory air box location and utilize any factory cold air inlet ducts that are present

– Alignment tool

ROTO-MOLD TUBE - CHEVROLET CORVETTE STINGRAY V8-6

fix lean or rich spikes

The tailpipes are finished off with a pair of large 4

There are no plastic clips that can melt or fail

3/16 Allen