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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BC0220 |
BC1220 |
BC2220 |
Single spring, titanium retainer |
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Spring Pressure:
BC1220 Seat: 1.425" @ 80 lbs / Open: 0.990" @ 192 lbs / Coil Bind: 0.900" (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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| BC3220 |
37.0mm Intake (standard head diameter) |
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| BC3221 |
31.0mm Exhaust (standard head diameter) |
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| BC3224 |
38.0mm Intake (+1mm head diameter) |
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| BC3225 |
32.0mm Exhaust (+1mm head diameter) |
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| NISSAN VQ35DE 4.1L STROKER KIT |
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BC 4340 billet steel crank (86.4mm stroke). Avail. balanced or self-balanced. |
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BC 4340 Pro Series steel billet connecting 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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9310 nickel carbon steel alloy wrist pins available as a standard feature. |
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Ductile iron plasma top rings, tapered second ring, low tension oil rings. |
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86.4mm stroke req. block clearancing & removing piston squirters. Plugs incl. |
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Kits are available fully balanced ready to install or unbalanced. |
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ACL Race Bearings sold seperately. |
| Kit # |
Crank # |
Rod # |
Piston # |
Desc. |
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| BC0225 |
BC5225 |
BC6228 |
BC7229 |
86.4mm stroke w/ BC625+ rod |
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| BC0226 |
BC5225 |
BC6229 |
BC7229 |
86.4mm stroke w/ bROD rod |
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| The BC stroker kit for the Nissan VQ35DE engine platform incorporates a 88mm
stroke, steel billet crank, BC 4340 Pro Series Billet rods rated to 1200+ horsepower. Depending on bore size that you decide, the BC kit will take you up to a 4.15L
with 100mm bore. As usual, each BC kit features custom CP aluminum forged pistons, 9310 alloy wrist pins,
ring pack and buttons. Available in any desired bore and compression ratio for use in turbo or normally
aspirated. |
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Stock Specifications:
VQ35 95.5mm Bore x 81.4mm Stroke - 8.440" Block Height |
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