Holley Throttle Bodies: LS; Race; Street/Strip

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Holley Anodized Billet LS Throttle Bodies:

• TPS clocker (patent pending) allows the TPS to be rotated back into the ECU’s required idle voltage range. Modified engines no longer suffer from problems related to TPS voltage!

• Idle bleed allows adjustment of your idle without affecting throttle position or TPS voltages at idle!

• PCV passage valve closes to accommodate forced induction applications!

• Cruise control provision built in for cruise control cable

• Fits the following intake manifolds: Stock LS2, Stock LS3, Stock LS7, Holley LS Mid-Rise, Holley 95mm Hi-Ram, Fast™ LSX, Edelbrock Pro-Flo XT using 4 bolt TBs & most other 90 through 95mm LS intakes using 4 bolt TBs

Part Numbers with description:

# 112-589 Billet 90mm LS Throttle Body w/low RPM Taper

# 112-585 Billet 95mm LS Throttle Body w/low RPM Taper

# 112-581 Billet 105mm LS Throttle Body w/low RPM Taper

# 112-583 Billet 105mm LS Throttle Body w/straight bore

Holley Efi Multi-Port 1000 CFM Throttle Body for Race. Part # 112-602 Universal race series 4bbl 1000CFM Throttle body with 4150 flange.

• 1-3/4” throttle bore

• Integrated TPS, IAC, and Air Temperature Sensor

• Hi Flow IAC passages for large cubic inch engines for idle stability

• Uses a non-contact magnetic hall effect TPS sensor

• Includes (1) 3/8” and (1) 3/16” full manifold vacuum ports

• PTFE coated throttle shaft rides in oil impregnated bronze bushing for smooth actuation • Dedicated race only throttle lever

• Stainless steel adjustable secondary link; factory set to 1:1 actuation

• High quality die cast aluminum for strength and weight reduction

Holley EFI Multi-Port 1000 CFM Throttle Body for the street/strip. Part # 112-587 Cast MPFI Throttle Body in Hard Core Gray™ with 4150 flange. Part # 112-588 Cast MPFI Throttle Body Tumble Polished with 4150 flange.

• Integrated TPS, IAC, and Air Temp Sensor

• Hi Flow IAC passages for large cubic inch engines for idle stability

• Ford Transmission kick down lever

• Integrated GM 700R4 transmission kick down location (no adapters needed)

• All necessary vacuum ports (1) timed spark, (2) 3/8" and (2) 3/16" full manifold vacuum ports

• 1.75" throttle plates mounted to PTFE coated throttle shafts for high flow and a smooth operation

Holley High End Race Series 4500 Throttle Bodies. Part # 112-592 is 4500 Big Dual w/ EFI fuel rails. Part # 112-593 is 4500 Big Dual “Dry” (not machined for injectors).

• Lightweight billet design (4500 pattern)

• Dual throttle blades for maximum airflow

• Shafts ride on roller bearings for ultra-smooth throttle actuation.

• Flows 2550 CFM

• Versions with and without supplemental injector provisions (4 injectors per TB and rails)

• Non-contact magnetic TPS sensor

Holley part # 112-590 is a 105 MM Mono blade throttle body, V-band style. Part # 112-591 is a 105 MM Mono blade throttle body with Dual o-ring style. Both are for Race applications.

• Lightweight billet design (3.5” square bolt pattern)

• Adjustable idle and WOT stops

• Includes billet adapter for 4” tubing

• Indexable throttle lever for a variety of installations

• Non-contact magnetic TPS sensor

• 2 versions: V-band or dual o-ring connections

105mm Throttle Bodies Video