For All Your High Performance Needs


BB Chevy 496-505 Short Blocks, Short Deck

CNC-Motorsports, has quickly raised the bar to a new level in offering high quality short blocks at an affordable price. Our short blocks have become a huge hit among racers and performance enthusiast all over the world. We have the ability to custom build you just about any combination the way you want it. All our short blocks are 100% machined, CNC Machined and blue-printed to our race wining specs. We never cut corners like others just to lessen the price.

We literally have hundreds of short block options we can offer. We have listed the most common set ups. Please call us if your looking for something not listed and we will be more than happy to give you a quote.

Items 1 to 15 of 34 total

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  1. CNC Competition BB Chevy 454/496 Dart Short Block, Eagle Crank, Mahle 8.7:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Eagle Crank, Mahle 8.7:1 Pistons

    Part Number: CNC-9722-E

    $4,639.95

    BB Chevy 454/496, Dart Block, Eagle 4140 Forged Steel 4.250 Crankshaft, Eagle 6.385 H Beam Rods, Mahle 8.7:1 Flat Top Pistons

    Manufacturer: CNC-Motorsports

  2. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Diamond 13.1:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Diamond 13.1:1 Pistons

    Part Number: CNC-9737-S

    $4,779.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Diamond 13.1:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  3. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Diamond 8.4:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Diamond 8.4:1 Pistons

    Part Number: CNC-9736-S

    $4,739.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft,Scat 6.385 H Beam Rods, Diamond 8.4:1 Flat Top Pistons

    Manufacturer: CNC-Motorsports

  4. CNC Competition BB Chevy 454/511 Dart Short Block, Scat Crank, JE 13.4:1 Pistons

    CNC Competition BB Chevy 454/511 Dart Short Block, Scat Crank, JE 13.4:1 Pistons

    Part Number: CNC-9735-S

    $4,789.95

    BB Chevy 454/511, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, JE 13.4:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  5. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, JE 12.9:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, JE 12.9:1 Pistons

    Part Number: CNC-9734-S

    $4,749.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, JE 12.9:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  6. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, JE 8.7:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, JE 8.7:1 Pistons

    Part Number: CNC-9733-S

    $4,699.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, JE 8.7:1 Flat Top Pistons

    Manufacturer: CNC-Motorsports

  7. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, SRP 12.7:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, SRP 12.7:1 Pistons

    Part Number: CNC-9732-S

    $4,629.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 12.7:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  8. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, SRP 10.2:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, SRP 10.2:1 Pistons

    Part Number: CNC-9731-S

    $4,629.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, SRP 10.2:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  9. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 13.3:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 13.3:1 Pistons

    Part Number: CNC-9730-S

    $4,629.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Icon 13.3:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  10. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 10.2:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 10.2:1 Pistons

    Part Number: CNC-9729-S

    $4,629.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Icon 10.2:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  11. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 8.6:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon 8.6:1 Pistons

    Part Number: CNC-9728-S

    $4,629.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Icon 8.6:1 Flat Top Pistons

    Manufacturer: CNC-Motorsports

  12. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon FHR 10.5:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon FHR 10.5:1 Pistons

    Part Number: CNC-9727-S

    $4,579.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Icon FHR 10.5:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  13. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon FHR 8.6:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Icon FHR 8.6:1 Pistons

    Part Number: CNC-9726-S

    $4,579.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Icon FHR 8.6:1 Flat Top Pistons

    Manufacturer: CNC-Motorsports

  14. CNC Competition BB Chevy 454/505 Dart Short Block, Scat Crank, Mahle 14.0:1 Pistons

    CNC Competition BB Chevy 454/505 Dart Short Block, Scat Crank, Mahle 14.0:1 Pistons

    Part Number: CNC-9725-S

    $4,739.95

    BB Chevy 454/505, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Mahle 14.0:1 Dome Pistons

    Manufacturer: CNC-Motorsports

  15. CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Mahle 12.9:1 Pistons

    CNC Competition BB Chevy 454/496 Dart Short Block, Scat Crank, Mahle 12.9:1 Pistons

    Part Number: CNC-9724-S

    $4,689.95

    BB Chevy 454/496, Dart Block, Scat 4140 Forged Steel 4.250 Crankshaft, Scat 6.385 H Beam Rods, Mahle 12.9:1 Dome Pistons

    Manufacturer: CNC-Motorsports

Items 1 to 15 of 34 total

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