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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BC0250 |
BC1250 |
BC2250 |
Single spring, titanium retainer |
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Spring Pressure:
BC1250 Seat: 1.550" @ 80 lbs / Open: 1.050" @ 220 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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| BC3250 |
Custom Intake Valves (set/12). Specify head dia (37mm). |
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| BC3251 |
Custom Exhaust Valves (set/12). Specify head dia (31mm). |
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| PATROL 5.15L TB48 STROKER KIT |
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BC 4340 billet steel crankshaft (108mm stroke). |
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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. |
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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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| BC0259 |
BC5259 |
BC6259 |
BC7259 |
108mm stroke |
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| The BC stroker kit for the Nissan Patrol TB48 engine platform incorporates a
108mm stroke, steel billet crank, BC 4340 Pro Series connecting rods rated to 1200+ horsepower. Depending on bore size that you decide, the BC kit will take you up to a
5.15L with 100.5mm 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:
TB48 99.5mm Bore x 102mm Stroke - 10.059" Block Height |
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