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Throttle Bodies
 • 48mm V6
 • 50mm V6/V8
 • 52mm V8
 • 52x55mm V8
 • 58mm V8
 • 70-72mm 4.7 V8
 • 62 & 68mm Jeep 4.0 6

Viper
 • 62-68mm Viper TB pair
 • Viper fuel rails <New!

Accessories
 • Six Barrel MPI conversion intakes
 • Renzoni Mount
 • Ram Ring

See the Ordering page for information on how to order!

 

 

 

 



F&B Performance Engineered Products stocks throttle bodies for 1992-2004 Magnum engines, Dodge/Jeep V8 and V6, Jeep 4.0L and Viper V10 as well as EFI 6barrel conversions for most Mopar V8s. See below for a full description of each. Currently we have distributors around the country,or you can purchase directly from us using the Paypal Buy Now buttons on this page. .

All F&B products are CNC machined from the highest quality raw materials
Body material is 6061-T6 aluminum with a clear sulfuric anodized coating. F&B shafts are machined from 17-4PH stainless steel . F&B butterfly plates are made from 6061-T651 aluminum . All bearings are high-speed ABEC 3 ball bearings with high temperature grease.

You need to enlarge the bore to get the big flow numbers
Most stock throttle bodies are manufactured from aluminum castings. Once the casting is machined, thin walls, porosity, and/or casting defects compromise the throttle body’s integrity. This is where high-quality billet aluminum comes in, while F&B throttle bodies flow more than any other throttle body with the same bore size. F&B's 6061-T6 billet TB can handle the thin-wall sections required for big flow rates in the stock throttle body mounting patterns. Bore distortion, pulled threads, and cracked walls are eliminated, because we start with billet! Check out the product pictures and descriptions. An F&B throttle body not only looks like a gem, it's also bulletproof! With F&B products, making power and looking good go hand in hand!

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Throttle Bodies

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2x48

Applications: 1992-2003 Stock to mildly modified 3.9L V6

The F&B 48mm throttle body comes with a new factory gasket, all new 18-8 stainless steel cap screws for your factory sensors, stainless steel hold down bolts, and the F&B billet seal nut for your airhat. This TB requires minor modifications to your factory airhat (Ram or Dakota). No modifications are required for aftermarket air inlet systems. The 48mm throttle body flows 660 CFM @ 25" and will give a noticable improvement in throttle response and top end power to all V6 applications.

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2x50

Applications: 5.2L and 5.9L V8, Modified 3.9L V6

The 50mm throttle body features a profiled 17-4PH stainless steel shaft . The kit includes a new factory gasket, all new 18-8 stainless steel cap screws for your factory sensors, stainless steel hold down bolts, and the F&B billet seal nut for your airhat. This TB requires minor modifications to your factory airhat (Ram or Dakota). No modifications are required for aftermarket air inlet systems. The 50mm Throttle body flows 760 CFM @ 25". Factory V8 throttle bodies flow 635 CFM @ 25". The 50mm will support over 300crank hp.

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2x52

Applications: 1992-2003 Modified 5.2L and 5.9L V8

The F&B 52mm throttle body features a radically profiled 17-4 Stainless steel throttle shaft and 52mm bores. It comes with a new factory gasket, all new 18-8 stainless steel cap screws for your factory sensors, stainless steel hold down bolts, and the F&B billet seal nut with Renzoni bridge mount for your airhat. This TB requires minor modifications to your factory airhat (Ram or Dakota). No modifications are required for aftermarket air inlet systems. The 52mm F&B throttle body flow 860 CFM @ 25". Reccomended for 295-400 crankhp applications

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2x52x55

Applications: 1992-2003 Stroked 5.9L V8

The F&B 53x55mm throttle body features a radically profiled 17-4 PH stainless steel shaft for maximum flow and 53x55mm Oval "easy tip-in" plates. This TB flows the equivalent of two 56mm bores. (980 CFM at 25") The kit includes a new factory gasket, all new 18-8 stainless steel cap screws for your factory sensors, stainless steel hold down bolts, and the F&B billet seal nut with Renzoni bridge mount for your airhat. The manifold opening and factory gasket must be enlarged for this throttle body. We recommend the use of a MPI 4 bbl w/2 bbl adapter or the MPI 2 bbl manifold from Mopar Performance to optimize your setup. No modifications are required for most aftermarket air inlet systems This TB is for stroked motors over 360 ci or heavily modified 5.9l motors. displacement.

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2x58

Applications: 1992-2003 Stroked 5.9L V8

The F&B 58mm throttle body features a radically profiled 17-4 PH stainless steel shaft for maximum flow and 58mm equivalent plates. The offset blades with angled profiling provides maximum tip in control with added vacuum assist closing. This TB flows the equivalent of two 58mm bores, over 1200 CFM at 25". It comes with a new factory gasket, all new 18-8 stainless steel cap screws for your factory sensors, stainless steel hold down bolts, and the F&B billet seal nut with Renzoni bridge mount for your airhat. The manifold opening and factory gasket must be radically enlarged for this throttle body. We recommend the use of a MPI 4 bbl w/2 bbl adapter or the MPI 2 bbl manifold from Mopar Performance to optimize your setup. No modifications are required for most aftermarket air inlet systems This TB is for stroked motors over 360 ci displacement only!

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1x70: Early 4.7 (1999 -2003) with 2 IAC mounting screws

2 screw IAC (99-2003)
Applications: 1999-2003 Stock to mildly modified 4.7L Overhead cam motor - 4x4 - 4x2

The 4.7 liter F&B throttle body series comes with all new stainless steel hardware. The F&B 4.7 throttle body has a 4" (80mm) inlet diameter and comes with a high temp silicone adaptor with clamps to hook up to your stock resonator box. The F&B 70mm throttle body flows over 700 CFM @ 25" Make sure to verify the number of screws that hold the IAC motor into your throttle body before ordering. Early models have 2 screws, while later models have a large diameter, one screw mounted IAC motor.

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1x70: 2003-2005 "late" 4.7 with one IAC mounting screw

Applications: 2003-2006 Stock to mildly modified 4.7L Overhead cam motor - 4x4 - 4x2

The 4.7 liter F&B throttle body series comes with all new stainless steel hardware. The F&B 4.7 throttle body has a 4" (80mm) inlet diameter and comes with a high temp silicone adaptor with clamps to hook up to your stock resonator box. The F&B 70mm throttle body flows over 700 CFM @ 25" Make sure to verify the number of screws that hold the IAC motor into your throttle body before ordering. Early models have 2 screws, while later models have a large diameter, one screw mounted IAC motor.

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1x72 4.7

Applications: 2000-2003 Fully modified 4.7L Overhead cam motor - 4X2

The 4.7 liter F&B throttle body series comes with all new stainless steel hardware. The kit comes with a high temp silicone adaptor and clamps to hook up to your stock resonator box or aftermarket air intake systems. The F&B 72mm flows over 790 CFM @ 25".

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1x62J and 1x68J

Applications: 1991-2008 Jeep 4.0L straight 6 and stroked motors (4.0L - 5.0L)

F&B Jeep throttle bodies are available in 62mm and 68mm bore diameters (stock TB dia is 60mm necked to 56mm). Some intake manifold porting should be done to enlarge the manifold opening for the 66 and 68mm throttle bodies. These throttle bodies have a 3" inlet and are compatible with stock air intake systems (not recommended because of flow restriction) and most aftermarket air intake systems.The 62mm has been approved for JeepSpeed racing stock class and the 68mm is approved for open class races. The Jeep kits come with a high temp silicone coupling, clamps, gasket, and hardware.

Viper

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62V and 68V

Applications: 1994-2002 Viper V10 - All

F&B Viper throttle bodies are available in 2 sizes (62mm, 68mm) to provide additional air for "street stock" to stroked and blown Vipers. They feature 17-4 PH profiled shafts, right and left matched pairs, a high polish and a wild signature look. The factory Viper linkage must be reused. Inlet diameter is 3.5" for the 66 and 68mm throttle bodies, while the 62mm unit has the stock length and inlet diameter, making it perfect for aftermarket turbo or supercharger kits. All F&B Viper throttlebodies are designed for pressurized applications.

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Viper Fuel Rails Kit VFR

Applications: 1994-2002 Viper V10 - All

New F&B low profile fuel rails with -10 flow capacity, capable of supporting over 1300hp! Designed for most top feed injectors, these fuel rails have four 3/8 NPT inlets/outlets for maximum flexibility in running your fuel system. Pictured is a dual feed, dual return with large pressure dampers for 90+lb injectors. Our cable relocation kit allows you to run your throttle cable under the fuel rails for a clean, trouble free installation. All hardware, cable brackets, and cams are provided in the kit. The fuel rails are dipbrazed, clear anodized 6061-T6 aluminum for multi-fuel use. F&B rails will fit under the rear cowling, and provide a super trick, factory look! You can see them in the Pennzoil synthetic oil ads in the June and July 2005 issues of Hotrod magazine!

Accessories

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Six barrel EFI Intake systems

LA system
B or RB system
Applications:B, RB, LA, Magnum, Hemi with Aftermarket EFI systems

Complete mechanical progressive 6bbl EFI Intake systems based on available aftermarket manifolds. Each kit comes fully assembled with three billet throttlebodies, adjustable progressive linkage, fuel rails with billet mounts, IAC, TPS, Fuel rail crossover (AN-8), billet throttle cable mount, and one of three air cleaner options: Billet adaptors for the use of all stock 6bbl air cleaners (air grabber, shaker etc.) A flat fiberglass base for the use of factory A?C systems and the stock 6bbl element and top, or a minimalist polished and anodized flat billet air cleaner with K&N element for tight fitting applications. Please call or email for additional ordering requirements (hp target, head port style/size, Hemi applications etc.)

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#R1 "Renzoni" mount

Applications: All F&B throttlebodies with 3 1/4-20 tapped holes in top.

This mount allows the installation of airhats that measure 1.6" or more in height (inside dimension). Allows the ultimate in sealing for supercharged applications. Made from 6061-T6 Billet and anodized black. Comes with mounting hardware stainless stud and billet seal nut.

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#R2 "Ram Ring"

Applications: 2002-2003 Ram 5.9L

This is required to use the stock Ram air inlet system with the F&B line of throttlebodies. The re-designed for 2002 air inlet system is a good flowing design superior to the older systems. With the use of the Ram Ring and a drop-in high flow filter the F&B 2x50mm and 2x52mm throttlebodies can be used with the stock air inlet system without loss of performance.

See the Ordering page for information on how to order yours today!

 

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