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BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat ...

BC valves are one piece design with a friction welded Stellite tip for the best possible performance. Every valve is made from premium grade, heat ...

2.29L - Includes 4340 billet crank, 79mm stroke, I-Beam Extreme rods w/Custom Age 625+ fasteners (5.141 c-to-c), and custom pistons (choice of bore...

2.29L - Includes 4340 billet crank, 79mm stroke, I-Beam rods w/ARP2000 bolts (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL R...

2.29L - Includes 4340 billet crank, 79mm stroke, ProH2K rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings ava...

2.29L - Includes 4340 billet crank, 79mm stroke, ProH625+ rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings a...

2.71L - Includes 4340 billet crank, 83mm stroke, I-Beam Extreme rods with Custom Age 625+ fasteners (5.141 c-to-c), and custom pistons (choice of b...

2.71L - Includes 4340 billet crank, 83mm stroke, I-Beam rods w/ARP2000 bolts (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL R...

2.71L - Includes 4340 billet crank, 83mm stroke, ProH2K rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings ava...

2.71L - Includes 4340 billet crank, 83mm stroke, ProH625+ rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings a...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprie...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprie...

Subaru EJ20 - Darton #300-029 Dry Block Sleeves (92 to 96mm Bore) - 3.605" Semi Bore Size

2.17L - Includes 4340 billet crank, 75mm stroke, I-Beam rods w/ARP2000 bolts (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL R...

2.17L - Includes 4340 billet crank, 75mm stroke, ProH2K rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings ava...

2.17L - Includes 4340 billet crank, 75mm stroke, ProH625+ rods (5.141 c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings a...

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. F...

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. F...

BC Made In Japan Head Gaskets - Subaru EJ205 - 93.5mm Bore / 1.5mm Thickness

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 272°/...

Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600 Adv Dur 280°...

Brian Crower Spring and Retainers Valvesprings Designed for high rpm, Brian Crower valve springs are wound from only the highest grade, super clean...

Brian Crower Spring and Retainers Valvesprings Designed for high rpm, Brian Crower valve springs are wound from only the highest grade, super clean...

AVCS intake features short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 268°/268° ...

AVCS intake, features longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit ...

BC Made In Japan Head Gaskets - Subaru EJ257 - 101mm Bore / 1.5mm Thickness

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 272°/...

Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600. Adv Dur 280...

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 272°/...

Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600. Adv Dur 280...

4340 billet. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. F...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprie...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprie...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...

BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances. BC recommends using titanium retainers on dual springs...