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    TBS-3121 Polished 2 LOBE 8MM BB Chevy Std Deck 250 "BABY" Billet Blower Package 8mm
    TBS-3121-BB  Polished 2 Lobe 8mm SB   Chevy  250 "BABY"  Billet  Blower Package  8mm

    Thumbnail Filmstrip of TBS-3121-BB Polished 2 Lobe 8mm SB Chevy 250 "BABY" Billet Blower Package 8mm Images

      Purchase TBS-3121-BB Polished 2 Lobe 8mm SB Chevy 250 "BABY" Billet Blower Package 8mm

      SKU: TBS-3121-SB
      TBS-3121-SB Polished 2 Lobe 8mm SB Chevy 250 "BABY" Billet Blower Package 8mm



      SMALL   Block Chevy  250 Mini Blower 2 Lobe Package 

      see 3321  for High Helix Version   for Small Block  250 HH

      Better pictures coming soon  

      TBS-3121-SB  2 LOBE  250 Blower package 8mm COGGED - 2v ACCESSORY 

       ( See TBS-332-SB  for High Helix version ) 


         250 Mini Blower  for SB  Chevy   Polished with Black option  With new 2 LOBE BILLET ROTORS 

      3121  8mm low profile blower TBS w Polished SB Chevy Manifold 

      SB  Chevy- 250 Blower Setup  -  will not fit tall deck  SB without Spacers 

      with 8mm x 2" Wide Belt

      Fits under hood  usually with no modifications - overall height of manifold, blower and carb adapter is 10.56"

      Solid Billet , with  2 lobe rotors. ( see 3321-SB  for the High Helix Version )

      Makes  PLENTY of boost for any engine up to 454  cu in -  for Street or Marine use or Bracket Racing ( usually 5-10  lbs ona 434  421  454  SB 

      Great Street sleeper blower to hide under the hood.  

      Requires a Short Water Pump if driving it  ( only because the pulley lines up - not relevant with electric pump )

      *Also Used in High Compression SB Chevy Race cars to add 6-10  lbs of boost to equalize Atmospheric conditions when the air gets dirty, and/or  corrected elevation  and density altitude caused a negative impact on  your ET .

      A 71 style Supercharger sticking out of the hood is always a nice addition, but it may not be what you are looking for. With our 250 Billet-Charger Blower series we have solved that problem. Still producing the most boost in the industry these dangerously powerful blowers come in a beautifully small package.  Perfect for tight clearances and low profile under-the-hood applications.

      2 Lobe Straight Rotors w/ Teflon* will make 6-10    lbs boost on a 454 SB Usually 

      10.8"  Tall from valley to top of Blower


      • Billet Case
        • CNC machined 6061-T6 Aluminum
        • Increased Strength over cast
        • Hard Anodized Interior
        • Mirror-Like Polish
        • Low Profile Design (6.56 tall including Billet Carb Adaptor)
        • Single or Dual Carb (4150 or 4500 *Please Specify when Ordering) SUGGEST  BUFFCO  RISER 
      • 2 Lobe Rotors -BILLET 
        • Teflon OD Stripping
        • Full length rotor shaft for increased strength
        • Maximum boost at low RPM 
      • Billet Front Cover -Oil Level Sight Glass
        • Oil Drain Plug -Polished Pressure Relief Valve  - Billet Bearing Plates
        • -  Hard Anodized
      • Included:
        • 250 Billet Supercharger with Snout
        • Intake Manifold Polished  w Black Option 
        • Accessory Pulley 2V belt OR SERPENTINE 
        • Supercharger Pulleys (*Please specify engine size and desired boost when ordering)
        • Belt 8mm x 2"   
        • Idler Assembly-All Necessary Gaskets and Hardware

        Intake bolts are 2" Stainless USS Threads Allen with thick AN Washers 

      Recent comment from an ex carb, unblown customer:

      • Hey Mike, giving you another update. Car is working great!! Car on Saturday went 7.31 three times in a row. only varied 12 thou all day. I had a chance to watch the boost gauge all the way down the track. As soon as it comes off the chip it makes 6 psi and don't move the whole way down the track.

      • MANY, MANY reports of  .3 tenths drop in ET immediately on installing


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