Holley's complete accessory systems for LT4 and LT5 applications have all accessories pulled up and in tight. Plus, they add the much needed hydraulic power steering solution. There are no shortcuts here. Holley incorporates a splined dual bearing...

This harness is designed for LS1/6 Engines, from 1997-2004. This harness interfaces with 24x Crank and 1x Cam sensors.

This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly found in 2006+ Year Model vehicles with LS variants such as the: LS2,LS3,LS7,L76,L92, and L98. Emissions: 4 This part is legal for sale or use on...

The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and...

Holley's new 6.86" Pro Dash delivers over 200 monitoring channels of reliable real-time data in a more compact, full HD package suitable for nearly any motorsports application. Be assured that the Holley EFI 6.86" Pro Dash will deliver the vitals you...

Trust. Whether it's your engine builder, team members or EFI System, trust is earned, not given. When your expensive engine, sponsorship and reputation are on the line, trust your engine monitoring to the Holley EFI 12.3" Pro Dash! The Holley EFI Pro...

This 2-Step connects right to your late model GM LT engines to produce consistent launches and quicker 60-foot times by setting an RPM limit to stage with. Designed for Manual and Automatic Transmissions! Features: Easily set a launch rpm for...

Holley engineering has taken their LS Retro-fit oil pans to the next level! The 302-3 design has even more sump clearance, includes two 1/2" NPT oil return bosses, and can clear a 4.00" stroke crankshaft. Just like the 302-2, the new designed 302-3...

Holley's complete accessory systems for LT4 and LT5 applications have all accessories pulled up and in tight. Plus, they add the much needed hydraulic power steering solution. There are no shortcuts here. Holley incorporates a splined dual bearing...

The new Holley Single-Plane Race intake manifold were designed with performance in mind. They feature a race bred, two piece split feature that was previously only found on the most expensive race intakes. The manifold will fit GM LS Gen III engines...

Holley's popular cast aluminum oil pan (Part # 302-2) designed to retro-fit LS engines into trucks, muscle cars, and more, has just been brought to the next level. Vehicles that endure prolonged sessions of braking, turning, and accelerating need extra...

The 302-12 oil pan baffle was developed for Holley by Improved Racing for their 302-3 low-front clearance, 4" stroke oil pan. The trap door baffling adds additional oil control to prevent oil starvation during hard acceleration, braking, and high lateral...