Chevy Big-Block ProCharger F-3R Reverse Rotation Cog Race Kit

Big-block Chevrolet ProCharger F-3R cog race kit in the reverse rotation configuration. Catalog family: 1CB200-F3RR-spec. Select the head unit and supply the exact engine and installation details before ordering.

Race hardware

The manufacturer specification lists an 8 mm-pitch, 75 mm-wide cog drive and ProRace bypass valve for the F-3 kit family. These are non-intercooled kits; charge cooling, induction plumbing and the fuel and calibration system must be specified for the actual engine combination. Do not assume a carb bonnet or accessory relocation hardware is included.

Engine and installation fitment

For custom big-block Chevrolet race installations. This is engine and accessory-layout fitment, not blanket compatibility with a vehicle year or model. Supply displacement, deck height, cylinder heads, crank/balancer arrangement, V-belt or serpentine accessories, induction type, chassis and available clearance. Review mounting, rotation and drive alignment before purchase.

Configuration

Select F-3R-121, F-3R-130 or F-3R-136; the selected variant price includes the specified model and housing finish. The catalog uses a specify-model suffix; the shop SKU distinguishes each selection. Satin is standard. F-3R 12-inch housing finishes add $650 for black or $750 for polished. Housing finish is included in the selected variant price; bracket finish is separate. No boost or horsepower output is guaranteed; fuel delivery and calibration must match the complete build.

Installation photograph

The manufacturer photograph is an F-3 race-installation example with custom chassis, induction and charge plumbing. It is not an exact photograph of this engine-specific reverse-rotation kit or a kit-contents inventory. Confirm the selected head, rotation, mounting and accessory arrangement for your build; pictured vehicle, engine and custom plumbing are not included.