VALVE SPRING/RETAINER KIT
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. |
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| Kit # |
Spring # |
Retainer # |
Description |
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BC0600 |
BC1600 |
BC2300-16 |
Single spring, titanium retainer |
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Spring Pressure:
BC1600 Seat: 1.420" @ 60 lbs / Open: 1.000" @ 160 lbs / Coil Bind: 0.860" (no machine work required) |
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STAINLESS STEEL VALVES
BC valves are made from premium stainless steel, fully machined and swirl polished for ultimate air flow. Dished head for added weight savings and increased valve control at high rpm. Standard and oversize head. |
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| Part # |
Description # |
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BC3600 |
36.0mm Intake (standard head diameter) |
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BC3601 |
32.0mm Exhaust (standard head diameter) |
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BC3604 |
37.0mm Intake (+1mm head diameter) |
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BC3605 |
33.0mm Exhaust (+1mm head diameter) |
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| SUBARU EJ205 2.29L STROKER KIT |
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BC 4340 billet steel crankshaft (79mm stroke). Not an OEM EJ25 crank. |
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BC 4340 Econo or Pro Series steel billet rods w/ARP 220,000 psi fasteners. |
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CP aluminum forged pistons (any bore size, any compression ratio). |
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5100 Series carbon steel alloy wrist pins. 9310 pin upgrade available. |
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Ductile iron plasma top rings, tapered second ring, low tension oil rings. |
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ACL Race Series bearings sold seperately. |
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Fully system balanced and ready to install. (50% deposit required) |

| Kit # |
Crank # |
Rod # |
Piston # |
Desc. |
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BC0608 |
BC5609 |
BC6608 |
BC7609 |
79mm stroke w/ BC625+ |
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BC0609 |
BC5609 |
BC6609 |
BC7609 |
79mm stroke w/ bROD |
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| The BC stroker kit for the Subaru EJ20 engine incorporates a proven 79mm stroke,
steel billet crankshaft, not a factory STi or EJ25 crank. Depending on bore size that you decide, the BC kit
will take you up to a 2.29L with a safe 96mm bore. As usual, each BC kit features custom CP forged aluminum
pistons, premium alloy wrist pins, full ring pack and buttons. Big time power and torque gains. BC Econo rods rated to
600 horspower, BC Pro Series rods rated to 800+ horsepower. |
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Stock Specifications:
EJ20 92mm Bore x 75mm Stroke - 7.913" Block Height |
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