PRODUCT DETAILS
SpeedFactory Racing FWD B-Series Billet Bellhousing
The SpeedFactory Racing FWD B-Series Billet Bellhousing is for people who actually lean on their cars—hard launches, 4-digit power, and real track time. This CNC machined bellhousing gives Honda B Series and Acura B-Series FWD transmissions the rigidity and consistency they need when you stop treating the gearbox like it’s stock. If you’re serious about a high horsepower bellhousing for a FWD B-Series setup, this is the B-Series transmission upgrade that keeps things straight, aligned, and alive under abuse.
This B-Series billet bellhousing starts as solid 6061-T6 aluminum and gets fully CNC machined into a precise, lightweight B-Series bellhousing. It comes in about 6–7 lbs lighter than many other billet bellhousing Honda options, which you’ll feel when you’re wrestling it into the car and when you’re chasing ETs. Less weight hanging off the back of the engine means more weight shifted forward on a FWD chassis, better bite, and quicker 60-foots. From quick street cars to SFWD and XFWD builds, this Honda FWD bellhousing / Acura transmission bellhousing setup stays stable at big power and big RPM.
SpeedFactory focused on function over flash. The built-in housing separation feature makes it way easier to service the trans between passes, and the improved countershaft bearing retention keeps things planted without grinding or hacking on the case. It clears popular LSDs (GSR/ITR and B16/LS), keeps the OEM-style oil control you actually need for longevity, and works with both single and multi-disc clutches. This racing B-Series bellhousing has already survived in 7-second, 195+ mph cars, so it’s not theory—it’s been proven where it counts. We still run these exact Honda racing bellhousing setups on our own cars.
Key Features
- CNC machined 6061-T6 B-Series billet bellhousing construction
- Approximately 6–7 lbs lighter than many other billet bellhousing FWD options
- Retains OEM-style oil control and factory-style fitment
- Clears GSR/ITR and B16/LS LSD units in Honda / Acura B-Series bellhousing applications
Compatibility
Fits all Honda / Acura FWD B-Series transmissions and works with OEM-style or aftermarket gearsets, differentials (including LSDs), and clutch setups. If you’re piecing together a serious Honda FWD bellhousing combo or an Acura B-Series bellhousing build, this case is built to play nice with real race parts.
Notes
This CNC machined bellhousing (SKU: SFR-05-602-A) requires full transmission assembly and shimming to OEM specs. Don’t shortcut this—have a reputable transmission specialist handle it unless you’re fully comfortable building B-Series boxes. Compatible with OEM clutch fork and release bearing setups or Tilton-style hydraulic release bearings.