Products

BC0451-UPG - Chevrolet LS7 Dry Sump Stroker Kit - 4.125" Stroke/ProH625+ Rods, CP Bullet S...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.125" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.125" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Bullet Series shelf stock pistons - Choose "Bullet" piston

BC0452-UPG - Chevrolet LS7 Dry Sump Stroker Kit - 4.000" Stroke/ProH625+ Rods, CP Custom M...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.000" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.000" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Custom MTO Pistons

BC0453-UPG - Chevrolet LS7 Dry Sump Stroker Kit - 4.125" Stroke/ProH625+ Rods, CP Custom M...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.125" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS7 dry sump snout (4.125" stroke) w/58 tooth reluctor wheel, Pro625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Custom MTO Pistons

BC0456-UPG - Chevrolet LS Series Wet Sump Stroker Kit - 4.000" Stroke/ProH625+ Rods, CP Bu...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.000" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.000" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Bullet Series shelf stock pistons - Choose "Bullet" piston

BC0457-UPG - Chevrolet LS Series Wet Sump Stroker Kit - 4.125" Stroke/ProH625+ Rods, CP Bu...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.125" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.125" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Bullet Series shelf stock pistons - Choose "Bullet" piston

BC0458-UPG - Chevrolet LS Series Wet Sump Stroker Kit - 4.000" Stroke/ProH625+ Rods, CP Cu...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.000" stroke) w/58 tooth reluctor wheel...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.000" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Custom MTO Pistons (allow 5-6 weeks).

BC0459-UPG - Chevrolet LS Series Wet Sump Stroker Kit - 4.125" Stroke/ProH625+ Rods, CP Cu...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.125" stroke) w/58 tooth reluctor whe...

Includes a BC 4340 forged crank with LS1 wet sump snout (4.125" stroke) w/58 tooth reluctor wheel, ProH625+ rods (6.125" c-to-c) with 7/16" ARP625+ fasteners and CP Custom MTO pistons. 

BC0460 - Chevy LS1 Conical Spring/Steel Retainer Kit

Designed for up to 9000 rpm and 1200whp, BC valve springs by Associated Spring are wound from onl...

Designed for up to 9000 rpm and 1200whp, BC valve springs by Associated Spring are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1460 Conical Free Length 2.235" Seat 1.800" @ 136 lbs Open 1.000" @ 500 lbs Coil Bind 0.900" Retainer BC2460 Spring Seat OEM Net Cam Lift 0.615" 

BC0466 - GM LS Gen III/Gen IV Stage 3 Camshaft - 3 Bolt (114°)

Big CID Daily or Small CID Race SpecificationDelivers great daily drivability and smooth idle in ...

Big CID Daily or Small CID Race SpecificationDelivers great daily drivability and smooth idle in large cubic inch 6.0L-up with wide lobe separation or emphasis on top end performance in 4.8/5.3L engines. RPM: 2800-7200 Adv Dur 282°/288° Dur @ .050 232°/238° Valve Lift (1.7:1) .591"/.612" Lobe Separation: 114° Cam Timing Tag

BC0468 - GM LS Gen III/Gen IV Stage 3 Turbo Spec Camshaft - 3 Bolt (116°)

Turbo SpecificationDesigned for 400+whp with wider lobe separation (116°) and dual pattern for in...

Turbo SpecificationDesigned for 400+whp with wider lobe separation (116°) and dual pattern for increased performance on small twin or large single turbo. Requires BC0470 for increased cylinder pressure. Adv Dur 276°/282° Dur @ .050 238°/244° Valve Lift (1.7:1) .595"/.612" Lobe Separation: 116° Cam Timing Tag

BC0481 - Jeep 4.0L/4.2L Inline 6 (AMC)

DROP-IN TRAIL CAM / DAILY DRIVER - NORMALLY ASPIRATEDAll purpose normally aspirated spec, works w...

DROP-IN TRAIL CAM / DAILY DRIVER - NORMALLY ASPIRATEDAll purpose normally aspirated spec, works with factory valve springs. Delivers excellent throttle response and maintains drivability at low range rpm. Big gains in mid-range power. If 1999-20005, requires older timing kit from 1996-98. Adv Dur 272°/276° Dur @ .050 216°/220° Valve Lift (1.75:1) .472"/.482" Valve Lift (mm) 11.98/12.24 Cam Timing Tag

BC0483 - Jeep 4.0L/4.2L Inline 6 (AMC)

FORCED INDUCTION SPECBig lift and duration spec focuses on top end power. Requires BC spring/reta...

FORCED INDUCTION SPECBig lift and duration spec focuses on top end power. Requires BC spring/retainer kit. ECU and cylinder head work will enhance overall performance. If 1999-20005, requires older timing kit from 1996-98. Adv Dur 284°/278° Dur @ .050 226°/220° Valve Lift (1.75:1) .507"/.493" Valve Lift (mm) 12.88/12.52 Cam Timing Tag

BC0508 - Hyundai G6DA V6 Stroker Kit - 93mm Stroke/ProH625+ Rods - Balanced

4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH625+ rods (5.886" c-to-c), an...

4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH625+ rods (5.886" c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings sold separately. - Balanced

BC0509-CLR - Hyundai G6DA V6 CP Stroker Kit w/CP Pistons & All Hardware - 96.5mm x 11.5:1

IN STOCK 4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH625+ rods (5.886" c-...

IN STOCK 4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH625+ rods (5.886" c-to-c), and custom CP pistons in 96.5mm x 11.5:1, no substitutions. ACL Race bearings sold separately - Balanced Bore 96.5mm (3.7992") Compression Ratio 11.5:1 w/1mm Thick Gasket Rod 5.886" BC6509 or BC6508 Stroke 93mm BC5509 (stock = 87mm) PE Dia 0.866"/22mm Comp Height 1.122" CP Part Number Custom Quantity Set 6 w/All Hardware

BC0509U - Hyundai G6DA V6 Stroker Kit - 93mm Stroke/ProH2k Rods - Unbalanced

4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH2k rods (5.886" c-to-c), and ...

4.21L - Includes 4340 billet crank, 93mm stroke fully balanced, ProH2k rods (5.886" c-to-c), and custom pistons (choice of bore/compression). ACL Race bearings sold separately. - Unbalanced

BC0600S - Subaru EJ Series, Toyota 3GSTE Single Spring/Steel Retainer Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1600 Single Free Length 1.788" Seat 1.420" @ 80 lbs Open 1.000" @ 178 lbs Coil Bind 0.850" Retainer BC2300S-16 Spring Seat OEM Net Cam Lift 0.480" / 12.19mm

BC0602 - Subaru EJ205 Stage 3 Camshafts - Race Spec

Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mod...

Longer duration profile, added rpm potential. Intended for fully built engine. Tuning and ECU mods recommended. Requires kit BC0600. Adv Dur 280°/280° Dur @ .050 234°/234° Valve Lift (1:1) .425"/.425" Valve Lift (mm) 10.80/10.80 Cam Timing Tag

BC0604 - Subaru EJ20 Series Stroker Kit - 75mm Stroke/ProH2K Rods

2.17L - Includes 4340 billet crank, 75mm stroke, ProH2K rods (5.141 c-to-c), and custom pistons (...

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 available separately. Crank # BC5605 - 75mm Rod # BC6609 - 5.141" Piston # BC7609 - Custom

BC0606 - Subaru EJ Series Stroker Kit - 79mm Stroke/I-Beam Extreme Rods

2.29L - Includes 4340 billet crank, 79mm stroke, I-Beam Extreme rods w/Custom Age 625+ fasteners ...

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/compression). ACL Race bearings available separately. Crank # BC5609 - 79mm Rod # BC6606 - 5.141" Piston # BC7609 - Custom

BC0608 - Subaru EJ Series Stroker Kit - 79mm Stroke/ProH625+ Rods

2.29L - Includes 4340 billet crank, 79mm stroke, ProH625+ rods (5.141 c-to-c), and custom pistons...

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 available separately. Crank # BC5609 - 79mm Rod # BC6608 - 5.141" Piston # BC7609 - Custom

BC0610 - Subaru EJ Series Dual Spring/Titanium Retainer, Seat Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1020 Dual Free Length 1.606" Seat 1.325" @ 82 lbs Open 0.925" @ 180 lbs Coil Bind 0.825" Retainer BC2305-16 Spring Seat BC2936 Net Cam Lift 0.450" / 11.43mm

BC0621 - Subaru EJ257/EJ255 Stage 2 Camshafts - Street/Strip Spec

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent...

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 272°/272° Dur @ .050 222°/222° Valve Lift (1:1) .400"/.400" Valve Lift (mm) 10.16/10.16 Cam Timing Tag

BC0623 - Subaru EJ257B (Dual AVCS - STi 08-up) Stage 2 Camshafts - Street/Strip Spec

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent...

Plug and play application. Short duration for nice street manners, slight lope at idle. Excellent all purpose spec. OEM spring OK. Adv Dur 272°/272° Dur @ .050 222°/222° Valve Lift (1:1) .400"/.400" Valve Lift (mm) 10.16/10.16 Cam Timing Tag

BC0626-CLR - Subaru EJ 257 Stroker Kit - 83mm Stroke/I-Beam Extreme Rods w/101mm Bore x 9.5:1

2.71L - Includes 4340 billet crank, 83mm stroke, I-Beam Extreme rods with Custom Age 625+ fastene...

2.71L - Includes 4340 billet crank, 83mm stroke, I-Beam Extreme rods with Custom Age 625+ fasteners (5.141 c-to-c), and custom CP pistons in 101mm x 9.5:1, no substitutions. Crank # BC5629 - 83mm Rod # BC6606 - 5.141" Piston # BC7629 - Custom CP 101mm Bore x 9.5:1

BC0627 - Subaru EJ Series Stroker Kit - 83mm Stroke/I-Beam Rods

2.71L - Includes 4340 billet crank, 83mm stroke, I-Beam rods w/ARP2000 bolts (5.141 c-to-c), and ...

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 Race bearings available separately. Crank # BC5629 - 83mm Rod # BC6607 - 5.141" Piston # BC7629 - Custom

BC0629 - Subaru EJ Series Stroker Kit - 83mm Stroke/ProH2K Rods

2.71L - Includes 4340 billet crank, 83mm stroke, ProH2K rods (5.141 c-to-c), and custom pistons (...

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 available separately. Crank # BC5629 - 83mm Rod # BC6609 - 5.141" Piston # BC7629 - Custom

BC0651 - Subaru FA20/Toyota 4UGSE Dual Spring/Titanium Retainer Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. Type BC1010 Dual Free Length 1.607" Seat 1.350" @ 80 lbs Open 0.900" @ 220 lbs Coil Bind 0.765" Retainer BC2651 Spring Seat BC2939 Net Cam Lift 0.500" / 12.7mm

BC0702 - VW/AUDI 1.8T (20v) Stage 2+ Camshafts - Circuit/Strip Spec

20v with short duration profile builds cylinder pressure by reducing overlap, high lift for more ...

20v with short duration profile builds cylinder pressure by reducing overlap, high lift for more air/fuel intake. OEM spring OK to factory rev limit or BC0700. Adv Dur 262°/272° Dur @ .050 210°/216° Valve Lift (1.75:1) .324"/.410" Valve Lift (mm) 8.23/10.41 Cam Timing Tag

BC0722 - VW Type 1 & 3 Air Cooled Camshafts - Full Track Spec

For larger CID builds with mods, 2000-6000 rpm. Requires aftermarket spring kit. Adv Dur 310°/...

For larger CID builds with mods, 2000-6000 rpm. Requires aftermarket spring kit. Adv Dur 310°/310° Dur @ .050 266°/266° Lobe Lift .385"/.385" Valve Lift (1.4:1) .539"/.539" Cam Timing Tag

BC0759 - Audi/Lamborghini 5.2L V10 Stock Stroker Kit - 92.8mm Stroke/Pro625+ Connecting Ro...

Includes premium steel EN40 billet crank, stock 92.8mm stroke. Crank is heavy metal balanced to 1...

Includes premium steel EN40 billet crank, stock 92.8mm stroke. Crank is heavy metal balanced to 1455g bobweight. Also features BC ProH625+ rods (154mm c-to-c) and custom pistons (choice of bore/compression). Note: Custom pistons are currently running 6-8 weeks, you specify desired bore/compression ratio. 

BC0789 - BMW M50/M52/S52 Stroker Kit - 95.6mm Stroke/ProH2K Connecting Rods/Custom Pistons

Includes 4340 billet crank, 95.6mm stroke, ProH2K+ rods (5.315" c-to-c) and custom pistons (choic...

Includes 4340 billet crank, 95.6mm stroke, ProH2K+ rods (5.315" c-to-c) and custom pistons (choice of bore/compression). Note: Custom pistons are currently running 5-7 weeks, you specify desired bore/compression ratio. 

BC0799 - BMW N54B30 Stroker Kit - 93.6mm Stroke/ProH2K Connecting Rods/Custom Pistons

Go up to 3.149L on your BMW N54B30 with 84.5mm bore and a BC 4340 billet crank, 93.6mm stroke, P...

Go up to 3.149L on your BMW N54B30 with 84.5mm bore and a BC 4340 billet crank, 93.6mm stroke, ProH2K+ rods (5.709" c-to-c) and custom pistons (choice of bore/compression). Note: Custom pistons are currently running 6-8 weeks, you specify desired bore/compression ratio. Features 6 bolt flywheel bolt pattern.  

BC0900 - Polaris XP Turbo (16-up) / XP 1000 (14-up) Beehive Spring/Titanium Retainer/Seat Kit

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium 6AL4V titanium alloy for added valve control above 10,000 rpm. Also requires BC3991 valve stem seals. Type BC1900 Single Free Length 1.610" Seat 1.265" @ 83 lbs Open 0.850" @ 197 lbs Coil Bind 0.760" Retainer BC2901 Spring Seat BC2911 Net Ca...

BC0900B - Polaris XP Turbo (16-up) / XP 1000 (14-up) Beehive Spring/Steel Retainer w/No Sh...

Features a retainer design with no shim capture for use with stock Polaris cam buckets and a reco...

Features a retainer design with no shim capture for use with stock Polaris cam buckets and a recommended setup if banging on the anti-lag. BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium 4140 chromoly steel for "set it and forget it" wear characteristics. Beehive spring keeps retainer lightweight. Also requires BC3991 valve ste...

BC0900BX - Polaris XP Turbo (16-up) / XP 1000 (14-up) Beehive Spring/Steel Retainer w/No S...

Features a retainer design with no shim capture for use with stock Polaris cam buckets and a reco...

Features a retainer design with no shim capture for use with stock Polaris cam buckets and a recommended setup if banging on the anti-lag. BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium 4140 chromoly steel for "set it and forget it" wear characteristics. Beehive spring keeps retainer lightweight. Includes OEM style seat and Vi...

BC0900D - Polaris XP Turbo (16-up) / XP 1000 (14-up) Dual Spring/Steel Retainer/Seat Kit

Dual spring designed for high rpm and/or anti-lag, works with stock buckets (sizing based on the ...

Dual spring designed for high rpm and/or anti-lag, works with stock buckets (sizing based on the installed height of your valves). BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium chromoly steel alloy for "set it and forget it" wear characteristics. NOTE: This kit requires the BC3992 valve seals, in order to run the BC3992 valve...

BC0900SX-2 - Polaris Pro-R Beehive Spring/Steel Retainer/Seal Kit w/o Seat

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium chromoly steel alloy for "set it and forget it" wear characteristics. Beehive spring keeps retainer lightweight. Also includes BC3991-2 valve stem seals. Type BC1900-2 Single Free Length 1.610" Seat 1.265" @ 83 lbs Open 0.850" @ 197 lbs Coil Bind ...

BC0900X-2 - Polaris Pro-R Beehive Spring/Titanium Retainer/Seal Kit w/o Seat

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, supe...

Designed for high rpm, BC valve springs by PAC Racing are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC retainers are machined from premium titanium alloy, also includes BC3991-2 valve stem seals. Type BC1900-2 Single Free Length 1.610" Seat 1.265" @ 83 lbs Open 0.850" @ 197 lbs Coil Bind 0.760" Retainer BC2901-2 Valve Seal BC3991-2 Net Cam Lift 0.430" w/BC3991 Seal

BC0901 - Polaris XP 1000 (14-up) Stage 2 All Purpose Camshafts (pair)

All purpose level spec, works with factory valve springs. Delivers excellent throttle response ou...

All purpose level spec, works with factory valve springs. Delivers excellent throttle response out of the turns or wash but still pulls on the straights. Adv Dur (.020") 259°/262° Dur @ .050 234°/232° Valve Lift (1:1) .414"/.397" Valve Lift (mm) 10.51/10.08

BC0903 - Polaris XP 1000 (14-up) Stage 4 Short Course Spec Camshafts (pair)

 Big lift and duration spec focuses on top end power. Requires BC spring/retainer kit. ECU and cy...

 Big lift and duration spec focuses on top end power. Requires BC spring/retainer kit. ECU and cylinder head work will enhance overall performance. Due to high lobe lift, it is mandatory that you change the valve guides and use BC valve seals. Failure to do so will result in retainer to guide contact causing damage to the head and/or cams. Adv Dur (.020") 265°/265° Dur @ .050 248°/244° Valve Lift (1:1) .450"/.450" Valve Lift (mm) 11.43/11.43

BC0905 - Polaris XP 1000 (14-up) Stage 5 Race Only Camshafts (pair)

High lift, big duration spec for high compression (12.5:1 minimum) racing applications like Short...

High lift, big duration spec for high compression (12.5:1 minimum) racing applications like Short Course or Drag Racing. Pulls hard up through 9900 rpm with emphahsis on the top end. ECU flash or tune recommended. Due to high lobe lift, it is mandatory that you change the valve guides and use BC valve seals. Failure to do so will result in retainer to guide contact causing damage to the head and/or cams. Adv Dur (.020") 276°/276° Dur @ .050 254°/254° Valve Lift (1:1) .460"/.460" Valv...

BC0907 - Polaris XP 1000 (2014-23) Stroker Kit 78mm w/Pro625+ Rods, Custom Pistons

Polaris XP 1000 (2014-23 - does not fit 2024-up XP1000) - Includes 4340 billet crank, 78mm stroke...

Polaris XP 1000 (2014-23 - does not fit 2024-up XP1000) - Includes 4340 billet crank, 78mm stroke, Pro625+ rods (4.921" c-to-c), custom CP pistons (choice of bore/compression). Crank # BC5901 - 78mm (180° pin) Rod # BC6902 - 4.921" Piston # BC7901 Custom (any bore/compression)

BC0909 - Polaris XP1000 (14-up) Stock Stroke Kit 73.5mm w/BC ProH2K Rods, Shelf Pistons

Polaris XP 1000 - Includes 4340 billet crank, 73.5mm stroke, ProH2K rods (4.921" c-to-c), shelf C...

Polaris XP 1000 - Includes 4340 billet crank, 73.5mm stroke, ProH2K rods (4.921" c-to-c), shelf CP pistons (93mm bore/spec compression). Crank # BC5901 - 73.5mm (180° pin) Rod # BC6901 - 4.921" Piston # CP Shelf 

BC0911 - Polaris XP Turbo (16-up) Stage 2+ Duner/Trail Spec Camshafts

DUNER/HARDCORE TRAIL CAM PROFILEDesigned for stock turbo or modified turbo up to 28psi, works wit...

DUNER/HARDCORE TRAIL CAM PROFILEDesigned for stock turbo or modified turbo up to 28psi, works with stock valve springs up to factory rev limit, recommend BC spring kit if exceeding 8600 rpm. Requires tuning for optimum gains using PowerVision or HPTuners flash tuning device.  Adv Dur (.020") 252°/252° Dur @ .050 230°/230° Valve Lift (1:1) .420"/.420" Valve Lift (mm) 10.67/10.67

BC0915-75 - Polaris XP Turbo (16-up) Stroker Kit 75mm w/BC Pro625+ Rods, Custom Pistons

Polaris XP Turbo - Includes 4340 billet crank, 75mm stroke, BC Pro625+ rods (4.915" c-to-c), cust...

Polaris XP Turbo - Includes 4340 billet crank, 75mm stroke, BC Pro625+ rods (4.915" c-to-c), custom CP pistons (choice of bore/compression). Crank # BC5911 - 75mm (270° pin) Rod # BC6912 - 4.915" Piston # BC7911 - 93mm x 9.5:1

BC0916-75 - Polaris XP Turbo (16-up) Stroker Kit 75mm w/Carrillo Rods

Polaris XP Turbo - Includes 4340 billet crank, 75mm stroke, Carrillo rods (4.915" c-to-c), custom...

Polaris XP Turbo - Includes 4340 billet crank, 75mm stroke, Carrillo rods (4.915" c-to-c), custom CP pistons (choice of bore/compression). Crank # BC5911 - 75mm (270° pin) Rod # CA6912 - 4.915" Piston # BC7911 / BC7912 - Custom

BC0917 - Polaris XP Turbo (16-up) Stock Stroke Kit 68mm w/Pro625+ Rods, Shelf Pistons

Polaris XP Turbo - Includes 4340 billet crank, 68mm stroke, Pro625+ rods (4.915" c-to-c), choice ...

Polaris XP Turbo - Includes 4340 billet crank, 68mm stroke, Pro625+ rods (4.915" c-to-c), choice of CP or BME shelf pistons. Crank # BC5911 - 68mm (270° pin) Rod # BC6912 - 4.915" Piston # CP or BME - Shelf 93mm x 9.5:1

BC0919 - Polaris XP Turbo (16-up) Stroker Kit 78mm w/Custom MOAR Rods

Polaris XP Turbo - Includes 4340 billet crank, 78mm stroke, MOAR rods (4.921" c-to-c) w/custom ro...

Polaris XP Turbo - Includes 4340 billet crank, 78mm stroke, MOAR rods (4.921" c-to-c) w/custom rod journals, and choice of CP or JE shelf pistons (choice of bore/compression). Crank # BC5915 - 78mm (270° pin) w/42mm Pin Rod # BC6999 - 4.921" w/45mm BE Bore, .787" PE Bore Piston # CP or JE - Custom in any bore/compression

BC0921 - Honda Talon (19-up) Stage 2 Stock Replacement Trail Cam

New cams...not regrinds! Drop-in spec, that works with factory valve springs. Perfect for mild tr...

New cams...not regrinds! Drop-in spec, that works with factory valve springs. Perfect for mild trail riding, delivers excellent throttle response without requiring tuning. Adv Dur (.006") 266°/260° Dur @ .050 238°/230° Valve Lift (1:1) .395"/.375" Valve Lift (mm) 10.03/9.53

BC0923 - Honda Talon (19-up) Stage 4 Full Race Spec

New cams...not regrinds! Designed for the BC CNC ported head with +1mm intake and exhaust valves,...

New cams...not regrinds! Designed for the BC CNC ported head with +1mm intake and exhaust valves, high compression pistons (12:1 or higher), extensive tuning, focus on top end power. Requires BC0920. Adv Dur (.006") 280°/276° Dur @ .050 252°/236° Valve Lift (1:1) .420"/.390" Valve Lift (mm) 10.42/9.90