SpeedFactory Racing FWD Billet Bell Housing for Honda B Series

SpeedFactory Racing FWD Billet Bell Housing for Honda B Series

If you're building a serious B-series FWD car, your bell housing is not the place to cut corners. The SpeedFactory Racing FWD Billet Bell Housing is built for hard launches, 4-digit power, and real track time - not street-and-strip compromises. This CNC machined billet bell housing gives your Honda B-Series or Acura B-Series FWD transmission the rigidity and alignment consistency it needs when you stop treating the gearbox like it's stock. If you're chasing ETs in an Acura Integra, pulling power through a Honda Civic B-series swap, or building a full SFWD or XFWD setup, this is the high-horsepower B-series bell housing that keeps everything straight, aligned, and alive under abuse.

This B-series billet bell housing starts as a solid block of 6061-T6 aluminum and gets fully CNC machined to tight tolerances. It comes in approximately 6-7 lbs lighter than many other billet bell housing Honda options - weight you'll notice when you're wrestling it into the engine bay and when you're watching the 60-foot clock. Less rotating and unsprung mass hanging off the back of the engine means better weight distribution on a FWD chassis, more front bite, and quicker 60-foot times. SpeedFactory has validated these exact housings in 7-second, 195+ mph SFWD cars. This is not theory. These are on their own race cars right now.

SpeedFactory engineered this bell housing around real-world serviceability and race-day reliability. The built-in housing separation feature lets you split the cases between passes using an existing case bolt - no specialty tools, no wasted time in the pits. The improved countershaft bearing retention plate location clears larger-diameter aftermarket countershaft teeth without any grinding or modification to the case. The built-in axle seal stop gives you precise depth control during installation so you're not guessing on fitment. OEM-style oil control features are fully retained - something several competing billet options skip, which costs you longevity under sustained high-RPM use.

This housing clears both GSR/ITR and B16/LS LSD units and works with OEM-style single-plate clutches as well as multi-disc 7.25" twin and triple disc setups. It's compatible with both stock clutch fork and release bearing setups and Tilton-style hydraulic release bearings. Three M6x1.0 shoulder bolts handle precise SCHA location. Pair it with the SpeedFactory Modified Shift Change Holder Assembly for a fully proven B-Series FWD drivetrain combo that SpeedFactory has refined over years of actual competition use.

Who This Fits

This bell housing is a direct fit for all Honda and Acura FWD B-Series transmissions across the following platforms:

• 1990-2001 Acura Integra (B18B1, B18C1, B18C5) - all trims including GS-R and Type R
• 1992-2000 Honda Civic with B-series swap (B16A2, B16A3, B18C) - EG and EK chassis
• 1999-2000 Honda Civic Si (B16A2)
• 1994-1997 Honda Civic del Sol VTEC (B16A2)
• 1997-2001 Honda CR-V FWD (B20B, B20Z)
• Compatible with OEM-style and aftermarket gear sets, transfer drive gears, and all currently known aftermarket differentials

Key Features

• CNC machined from solid 6061-T6 billet aluminum - not cast, not welded
• Approximately 6-7 lbs lighter than many comparable billet FWD bell housing options
• Built-in housing separation feature for fast, tool-free case splitting at the track
• Improved countershaft bearing retention plate location clears large-diameter aftermarket countershaft teeth - no grinding required
• Built-in axle seal stop for precise, consistent depth control on installation
• Clears GSR/ITR and B16/LS LSD units without modification
• Retains OEM oil control features for long-term reliability under sustained high-RPM use
• Three M6x1.0 shoulder bolts for precise SCHA location
• Compatible with single-plate OEM-style clutches and multi-disc 7.25" twin/triple disc setups
• Works with OEM clutch fork and release bearing or Tilton-style hydraulic release bearing
• Race-validated in 7-second, 195+ mph SFWD competition builds

What's Included

• 1x SpeedFactory Racing FWD B-Series Billet Bell Housing (CNC machined 6061-T6 aluminum)
• 3x M6x1.0 shoulder bolts for SCHA location

Installation Notes

This bell housing requires full transmission assembly and shimming to OEM specifications. Do not shortcut this process - have a reputable transmission rebuilding specialist handle the assembly unless you are fully experienced building B-series gearboxes. Proper shimming is critical to bearing pre-load and long-term gear set survival. If you have questions about the build process, SpeedFactory Racing has the real-world experience to back up this product - reach out before you start the build.