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LS1 Stroker Kits
The BC stroker kit for the Chevrolet LS Series engine incorporates your choice of stroke, from 4.000", 4.100", 4.125" and 4.250", the BC crankshafts are CNC machined from 4340, non-twist steel. Depending on bore size that you decide, the BC kit will take you up to 471 CID with a safe 4.200" bore using Darton sleeves. The BC LS Series kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP or JE pistons, wrist pins, and full ring pack. Big time horsepower and torque gains.
  • BC 4340 forged crankshaft, gun drilled for weight savings a double keyway for added support.
  • BC 4340 steel billet H Beam connecting rods equipped with ARP2000 7/16" fasteners.
  • Choice of CP Bullet Series or JE shelf pistons or custom CP or JE brand pistons made to any spec.
  • 5100 alloy wrist pins and ductile iron plasma top rings, tapered second ring, low tension oil rings.
  • ACL Race Series rod and main bearings are available for additional cost.
  • Available as fully system balanced and ready to install for additional cost or self balance.
Stock Specification
LS1/LS6 3.898" Bore x 3.622" Stroke - 9.240" Block Height
Stroker Kit # Crankshaft # Rod # Piston # Description Buy Now Status
BC0450 BC5456 BC6459 CP7450B LS1 Head 383 CID - Includes 4340 forged crank (4.000" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125 c-to-c), CP Bullet Series pistons (3.905" bore x -18.2cc volume
[9:1 w/68cc Head -18cc], non flat top)
Call for
Avail.
BC0456 BC5456 BC6459 CP7456B LS1 Head 383 CID - Includes 4340 forged crank (4.000" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (3.905" bore x -1.3cc volume
[11:1 w/65cc Head], flat top)
Call for
Avail.


LS2 Stroker Kits
The BC stroker kit for the Chevrolet LS Series engine incorporates your choice of stroke, from 4.000", 4.100", 4.125" and 4.250", the BC crankshafts are CNC machined from 4340, non-twist steel. Depending on bore size that you decide, the BC kit will take you up to 471 CID with a safe 4.200" bore using Darton sleeves. The BC LS Series kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP or JE pistons, wrist pins, and full ring pack. Big time horsepower and torque gains.
  • BC 4340 forged crankshaft, gun drilled for weight savings a double keyway for added support.
  • BC 4340 steel billet H Beam connecting rods equipped with ARP2000 7/16" fasteners.
  • Choice of CP Bullet Series or JE shelf pistons or custom CP or JE brand pistons made to any spec.
  • 5100 alloy wrist pins and ductile iron plasma top rings, tapered second ring, low tension oil rings.
  • ACL Race Series rod and main bearings are available for additional cost.
  • Available as fully system balanced and ready to install for additional cost or self balance.
Stock Specification
LS2 4.000" Bore x 3.622" Stroke - 9.240" Block Height
Stroker Kit # Crankshaft # Rod # Piston # Description Buy Now Status
BC0451 BC5456 BC6459 CP7451B LS2 Head 403 CID - Includes 4340 forged crank (4.000" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125 c-to-c), CP Bullet Series pistons (4.005" bore x -27.8cc volume
[9.1:1 w/ 63cc head -27.8cc], non flat top)
Call for
Avail.
BC0452 BC5456 BC6459 CP7452B LS2 Head 403 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.005" bore x -12.7cc volume
[10.3:1 w/ 64cc head -12.7cc], non flat top)
Call for
Avail.
BC0453 BC5456 BC6459 CP7453B LS2 Head 408 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.030" bore x -27.5cc volume
[9.1:1 w/ 64cc head -27.5cc], non flat top)
Call for
Avail.
BC0454 BC5456 BC6459 CP7454B LS2 Head 408 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.030" bore x -13.8cc volume
[10.3:1 w/ 64cc head -13.4cc], non flat top)
Call for
Avail.
BC0455 BC5456 BC6459 CP7455B LS2 Head 427 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.125" bore x -17.4cc volume
[10.3:1 w/ 64cc head -17.4cc], non flat top)
Call for
Avail.
BC0457 BC5456 BC6459 CP7457B LS2 Head 403 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.005" bore x -1.3cc volume
[11.5:1 w/ 65cc head -2.7cc FT], flat top)
Call for
Avail.
BC0458 BC5456 BC6459 CP7458B LS2 Head 408 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.030" bore x -1.3cc volume
[11.7:1 w/ 65cc head -2.7cc FT], flat top)
Call for
Avail.
BC0459 BC5456 BC6459 CP7459B LS2 Head 427 CID - Includes 4340 forged crank (4.000" stroke) ) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), CP Bullet Series pistons (4.125" bore x -1.3cc volume
[ 11.3:1 w/ 70cc head -3.8cc FT], flat top)
Call for
Avail.


CUSTOM LS SERIES STROKER KITS
Rather than cram a cookie cutter setup down your throat, BC offers you a choice of custom piston made to any desired bore size and compression ratio. A piston that can accommodate larger strokes up to 4.250" for added displacement and fit any specified cylinder head (LS3, LS7, etc…). The BC stroker kit for the Chevrolet LS Series engine incorporates your choice of stroke, from 4.000", 4.100", 4.125" and 4.250", the BC crankshafts are CNC machined from 4340, non-twist steel. Depending on bore size that you decide, the BC kit will take you up to 471 CID with a safe 4.200" bore using Darton sleeves. The BC LS Series kit utilizes premium steel billet connecting rods. As usual, each BC kit features custom CP or JE pistons, wrist pins, and full ring pack. Big time horsepower and torque gains.
  • BC 4340 forged crankshaft, gun drilled for weight savings a double keyway for added support.
  • BC 4340 steel billet H Beam connecting rods equipped with ARP2000 7/16" fasteners.
  • Choice of CP Bullet Series or JE shelf pistons or custom CP or JE brand pistons made to any spec.
  • 5100 alloy wrist pins and ductile iron plasma top rings, tapered second ring, low tension oil rings.
  • ACL Race Series rod and main bearings are available for additional cost.
  • Available as fully system balanced and ready to install for additional cost or self balance.
Stock Specification
LS1/LS6 3.898" Bore x 3.622" Stroke - 9.240" Block Height
Stroker Kit # Crankshaft # Rod # Piston # Description Buy Now Status
BC0460 BC5456 BC6459 BC7460 Custom, specify cylinder head, bore size and compression ratio - Includes 4340 forged crank (4.000" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), custom CP or JE pistons Call for
Avail.
BC0461 BC5457 BC6459 BC7460 Custom, specify cylinder head, bore size and compression ratio - Includes 4340 forged crank (4.100" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), custom CP or JE pistons Call for
Avail.
BC0462 BC5458 BC6459 BC7460 Custom, specify cylinder head, bore size and compression ratio - Includes 4340 forged crank (4.125" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), custom CP or JE pistons Call for
Avail.
BC0463 BC5457 BC6459 BC7460 Custom, specify cylinder head, bore size and compression ratio - Includes 4340 forged crank (4.250" stroke) w/58 tooth reluctor wheel, H-beam rods (6.125" c-to-c), custom CP or JE pistons Call for
Avail.
Crankshafts
BC crankshafts are made from the finest, aerospace grade 4340 steel billet material. CNC machined on state of the art, 5 axis Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Every crankshaft features large radius journals that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced windage through the crankcase creating less oil resistance for better rpm potential.
Connecting Rods
BC connecting rods are CNC machined from aerospace grade 4340 steel billet, available in your choice of the European influenced H beam or the traditional I beam design (certain applications). All rods feature a deep, double ribbed cap that keeps the big end housing bore true at extended rpm and insures uniform bearing crush, delivering proper clearances for superior oil supply and maximum load carrying capacity. H Beam rods feature a deep radial groove pin bushing and oil holes at 5 and 7 o'clock (the beam acts as a trough), bringing critical lubrication to the critical wrist pin area. I Beam rods feature a oil hole at the 12 o'clock position that keep the pin end bore true at high boost. Available in your choice of ARP2000 fasteners (rated to 210,000 psi) or the ultimate faster, ARP's Custom Age 625+ (rated to 280,000 psi).
Pistons
Choose from the top piston brands available... CP or JE... in any desired bore size and compression ratio. Both brands make their custom BC stroker pistons from 2618 T6 high tensile strength forged aluminum forgings. These forgings are computer designed for strength and minimum weight. Each piston dia is CNC machined to assure optimal accuracy and superior grain flow in the forging process. 3D modeling software and rigorous Finite Element Analysis insure that your pistons are manufactured to the strongest and lightest part possible for your application. Your custom pistons feature tighter clearances, less noise, better ring seal and overall better durability. Standard features include pin fit, carbon steel wrist pins and spiral locks or rail supports depending on application. Added features include upgraded 9310 alloy wrist pins for reduced flex, lateral gas ports to assist in ring seal, skirt and top coatings and lightweight design.
619.749.9018 ph
619.749.9128 fx
Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved.   Follow runBC on Twitter