Throttle Bodies

Marren Fuel Injection offers several throttle body designs for custom EFI conversions. All of our throttle bodies include enclosed linkages for reduced overall width and greater protection from grit and debris. The precise gear-linkage design enable the throttle plates to open simultaneously with no slop or free-play for equalized distribution of air to all cylinders. Throttle shafts are made of brass and supported at both ends with sealed roller bearings. O-rings are used throughout to prevent boost-leak in engines equipped with turbos or superchargers. All of our throttle bodies are machined with smooth, concentric air passages with large radii to promote airflow and prevent reversion.

Our most popular design is a 1200 CFM, 4-barrel plate design. This unit is just 6 1/4 inches wide. It will fit between most port fuel injection fuel rail designs. For convenience, there are provisions on the throttle body for a map sensor, throttle position sensor, and an idle air control motor. We have designs that will flow as much as 1600 cfm for both automotive and marine applications, and they can be anodized to match your engine.

FEATURES ON THE UNITS INCLUDE:

All billet aluminum and CNC machined.
Brass throttle shafts.
Internal gear to gear, no external linkage (all 4 throttle plates open simultaneously). Non-progressive linkage gives it equalized distribution of air to all cylinders under off idle/partial throttle.
Supported at both ends by sealed roller bearing with o-rings.

These throttle bodies are direct bolt ons to a Holley 4150 and 4160 bolt pattern.

Marren Fuel Injection's custom decreased-width throttle body (bottom) provides additional clearance for fuel rails, throttle linkages, and other components.

Throttle Body List

1200 cfm Throttle Body

Flows 1200 CFM at max. opening. Features billet aluminum, CNC machined main body , corrosion-resistant brass throttle shafts, and a zero-play shielded gear-to-gear linkage (all 4 throttle plates open simultaneously). Non-progressive linkage gives it equalized distribution of air to all cylinders under off idle/partial throttle. Sealed roller bearings support each throttle shaft and prevent boost-leak on forced-induction engines.

Part # 1701 $690.00

1600 CFM throttle body

Flows 1600 CFM at max. opening. Features billet aluminum, CNC machined main body , corrosion-resistant brass throttle shafts, and a zero-play shielded gear-to-gear linkage (both throttle plates open simultaneously). Non-progressive linkage gives it equalized distribution of air to all cylinders under off idle/partial throttle. Sealed roller bearings support each throttle shaft and prevent boost-leak on forced-induction engines.

Part # 1702 $795.00

1600 CFM throttle body for marine applications

Flows 1600 CFM at max. opening. Features billet aluminum, CNC machined main body that is anodized black for protection from the elements, corrosion-resistant stainless steel throttle shafts, and a zero-play shielded gear-to-gear linkage (both throttle plates open simultaneously). Non-progressive linkage gives it equalized distribution of air to all cylinders under off idle/partial throttle. Sealed roller bearings support each throttle shaft and prevent boost-leak on forced-induction engines.

Part # 1702MI $895.00

1200 CFM Gen. 2 throttle body, non-progressive

Marren Fuel Injection's second-generation throttle body design has several features that set it apart from other throttle bodies on the market. All linkages are enclosed for protection against dirt, grit, and road debris. Both throttle shafts are supported by sealed roller bearings that will not leak boost or vacuum. Installed height is just 2.8", total weight is less than 3 lbs, making it one of the lightest and most compact throttle bodies available. Non-progressive 1:1 linkage opens all throttle blades at the same time. For TPS, use p/n 1881K listed below.

Part # 1704NP $695.00

1200 CFM Gen. 2 throttle body, progressive

Marren Fuel Injection's second-generation throttle body design has several features that set it apart from other throttle bodies on the market. All linkages are enclosed for protection against dirt, grit, and road debris. Both throttle shafts are supported by sealed roller bearings that will not leak boost or vacuum. Installed height is just 2.8", total weight is less than 3 lbs, making it one of the lightest and most compact throttle bodies available. Progressive linkage opens the primary blades before the secondary blades. For TPS, use p/n 1881K listed below.

Part # 1704P $695.00

TPS kit for Marren Fuel Injection throttle bodies

TPS and electrical connector kit designed to fit all standard Marren Fuel Injection throttle bodies. This kit includes a d-slot TPS sensor as well as an electrical connector shell, rubber protective boot, and wire terminals.

Part # 1881K $65.00

WE BUILD CUSTOM THROTTLE BODIES UPON REQUEST.

NOTE: There is a $30 minimum for all orders. All orders for in-stock components will be processed in 1-2 working days. Special orders and custom components will be subject to availability. Specifying UPS Next Day or Second Day shipping does NOT guarantee components will be shipped on the day the order is placed, so please allow 1-2 days for processing or call for shipment status.

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