Heads & Accessories

NOW you can stylishly hide the LS engine coil packs. Unlike the plastic or fiberglass versions, these covers are machined from 6063-T6 aluminum and can be ordered in black or grey powdercoated finishes; they're also available unfinished so you can...

Stop trying to remove your Harmonic Balancer with a hammer, twine, and your neighbor's oak tree. Use in conjunction with Harmonic Balancer puller. Heavy Duty Flywheel/Flexplate Holding Tools keep your engine from rotating while installing bolts. Made...

Stop trying to remove your Harmonic Balancer with a hammer, twine, and your neighbor's oak tree. Do it the easy way with our harmonic balancer removal kit. The HB kit includes a 3-jaw puller, four lengths of forcing rods, and a forcing screw with a...

How important are ignition coils to the performance of your vehicle? Well, without them your spark plugs would never receive the high voltage needed to ignite the fuel. Securing them is also important—and that's the function of ICT Billet ignition...

ARP Pro series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior...

ARP Pro Series cylinder head studs are cold-forged to ensure molecular integrity. They're heat-treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12-point nuts, and all kits come complete with hardened parallel...

Trick Flow GenX® 215 cathedral port cylinder heads are fully CNC-machined to significantly increase the performance of 5.7L LS1 engines. Trick Flow engineers altered the valve angles from 15° to 13.5° to decrease valve shrouding, increase...

Trick Flow GenX® 215 cathedral port cylinder heads are fully CNC-machined to significantly increase the performance of LSx engines. Trick Flow engineers altered the valve angles from 15° to 13.5° to decrease valve shrouding, increase mid-lift...

When making big power is in your future, look no further than a proper build kit like this one from SMM! This Scat Modern Muscle engine rotating assembly is equipped with high-quality Scat forged 4340 crankshafts and I-beam connecting rods with 7/16 in...

Billet Specialties LS valve cover conversion kits add classic style to modern performance. These kits allow the use of perimeter-style small block Chevrolet valve covers on your LS motor, while hiding the coils underneath for a clean, classic look. The...

Through innovative engineering, Proform has developed LS valve covers that will replace your generic looking stock LS valve covers and give them a totally personalized look. These new valve covers are taller than stock valve covers and can accommodate a...

These ARP High Performance series connecting rod bolts are made from seamless and defect-free 8740 chromoly steel. All ARP rod bolts are heat-treated before grinding and thread rolling and have a large underhead radius for greater strength. Guaranteed...

These ARP High Performance series connecting rod bolts are made from seamless and defect-free 8740 chromoly steel. All ARP rod bolts are heat-treated before grinding and thread rolling and have a large underhead radius for greater strength. Guaranteed...

These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi--15 percent stronger than Grade 8 fasteners. They come available with hex heads or reduced wrenching 12-point heads that eliminate the need for valvetrain removal...

Because of frictional inconsistencies with oil, moly, and other lubricants it takes multiple cycles of torquing the bolt, loosening it, and tightening it again to obtain the required preload or stretch. Typically, when a fastener is first tightened,...

Don't go all out on your LS Rebuild, just to take shortcuts on your block where it counts!! These ARP individual thread cleaning chasers are designed to clean those filthy, grimy, oily holes. They include the correct thread pitch and diameter for the...