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K20A / K20Z ProH625+ Connecting Rods
The ProH625+ rod from BC is the premier industry connecting rod. Made from aerospace grade 4340 steel, the ProH625+ utilizes every strength and benefit feature ever assembled in a connecting rod design. Incorporating ARP's ultimate fastener, the Custom Age 625+, rated to 280,000 p.s.i., the ProH625+ delivers the ultimate clamping ability at high horsepower and rpm. This rod is intended for the true hardcore enthusiast and racer and is rated in excess of 250+HP per cylinder.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6044 Honda/Acura K20A2, Z3 - ProH625+ w/ARP Custom Age 625+ Fasteners 4 5.473" 2.008" .780" .866" .780" 515 In-Stock
BC6045 Honda/Acura K24 - ProH625+ w/ARP Custom Age 625+ Fasteners 4 5.985" 2.008" .780" .866" .780" 537 In-Stock
K20A / K20Z ProH2K Connecting Rods
The ProH2K (formerly Sportsman) incorporates every feature of the premier ProH625+ connecting rod...same material, same CNC programming, same pin oilers, same double ribbed cap, same everything...except the fasteners. The ProH2K utilizes the more economical, yet venerable ARP2000 rod bolts, rated to 220,000 p.s.i. The ProH2K is rated in excess of 175HP per cylinder and priced for the everyday performance enthusiast who isn't going to the moon.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6041 Honda/Acura K20A2, Z3 - ProH2K w/ARP2000 Fasteners 4 5.473" 2.008" .780" .866" .780" 514 In-Stock
BC6051 Honda/Acura K20A2, Z3 - LightWeight ProH2K w/ARP2000 Fasteners 4 5.473" 2.008" .780" .866" .780" 430 Out of Stock
BC6042 Honda/Acura K24 - ProH2K w/ARP2000 Fasteners 4 5.985" 2.008" .780" .866" .780" 535 In-Stock
BC6052 Honda/Acura K24 - LightWeight ProH2K w/ARP2000 Fasteners - 350HP MAX 4 5.985" 2.008" .780" .866" .780" 457 In-Stock
K20A - Pro MidWeight I-Beam Connecting Rods
The Pro MidWeight is rated to 125HP per cylinder, making it the perfect choice when 400 to 500 HP is the end goal. LightWeight profiling around the pin end as well as tapered milling in the beam pockets, make this rod the ultimate “All Motor” performer. Features 3/8” ARP2000 fasteners rated to 220,000 p.s.i.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6054 Honda/Acura K20A - MidWeight I-Beam w/ARP2000 Fasteners 4 5.473" 2.008" .780" .866" .780" 479 In-Stock
K24 ProH625+ Connecting Rods
The ProH625+ rod from BC is the premier industry connecting rod. Made from aerospace grade 4340 steel, the ProH625+ utilizes every strength and benefit feature ever assembled in a connecting rod design. Incorporating ARP's ultimate fastener, the Custom Age 625+, rated to 280,000 p.s.i., the ProH625+ delivers the ultimate clamping ability at high horsepower and rpm. This rod is intended for the true hardcore enthusiast and racer and is rated in excess of 250+HP per cylinder.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6045 Honda/Acura K24A ProH625+ w/ARP Custom Age 625+ Fasteners 4 5.985" 2.008" .780" .866" .780" 537 In-Stock
K24 ProH2K Connecting Rods
Although the name implies that the ProH2K is a 2nd tier part, the ProH2K incorporates every feature of the premier ProH625+ rod, only that the fasteners have been changed to the more economical, yet venerable ARP2000 bolt, rated to 220,000 p.s.i. The ProH2K Standard Weight is rated in excess of 200HP per cylinder and priced for the everyday performance buff.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6042 Honda/Acura K24A - ProH2K w/ARP2000 Fasteners 4 5.985" 2.008" .780" .866" .780" 535 In-Stock
BC6052 Honda/Acura K24A - LightWeight ProH2K w/ARP2000 Fasteners 4 5.985" 2.008" .780" .866" .780" 457 In-Stock
K24A - Pro MidWeight I-Beam Connecting Rods
The Pro MidWeight is rated to 125HP per cylinder, making it the perfect choice when 400 to 500 HP is the end goal. LightWeight profiling around the pin end as well as tapered milling in the beam pockets, make this rod the ultimate “All Motor” performer. Features 3/8” ARP2000 fasteners rated to 220,000 p.s.i.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6055 Honda/Acura K24A - MidWeight I-Beam w/ARP2000 Fasteners 4 5.985" 2.008" .780" .866" .780" 488 In-Stock
K24 "MOAR" I-BEAM CONNECTING RODS
The "MOAR" (Mother Of All Rods) Series connecting rod from Brian Crower is what a connecting rod would look like when taking input from the top engine builders and tuners in the industry. The MOAR Series is approximately 70 grams heavier than the industry proven ProH Series design. The I-Beam design allows added beam to cylinder wall clearance for stroker applications. Radiused edges for added rigidity, Available in choice of ARP2000 or ARP Custom Age 625+ fasteners for premium clamping ability, added material near the pin end to insure true pin end roundness.
Part # Description # Qty # C-to-C BE Bore BE Width PE Bore PE Width Gram Wt Buy Now Status
BC6047 Honda K24 - MOAR I-Beam w/ARP2000 Fasteners 4 5.985" 2.008" 0.780" .866" 0.780" 653 In-Stock
BC6046 Honda K24 - MOAR I-Beam w/ARP Custom Age 625+ Fasteners 4 5.985" 2.008" 0.780" .866" 0.780" 655 In-Stock
ARP FASTENERS
BC Brian Crower is proud to feature ARP, the premier manufacturer of high quality fasteners, in every BC connecting rod. ARP rod bolts are superior to those from other manufacturer's, especially in the area of fatigue strength. Testing has shown that ARP rod bolts have ten times the fatigue strength of other fasteners. These fasteners are also available for purchase separately for replacement purposes. ARP2000 - an exclusive, hybrid alloy developed to deliver superior strength and better fatigue properties, capable of achieving a clamp load of 220,000 psi. ARP Custom Age 625+ - Newly formulated super-alloy demonstrates superior fatigue life cycle, tensile strength and toughness, with complete resistance to atmospheric corrosion and oxidation. The Custom Age is ARP's ultimate fastener, capable of achieving a clamp load of 260,000 psi.

Rod bolts are sold separately, please specify total number of bolts required when ordering. Rod bolts not for use as OEM replacement.

Part # Description # Qty # Spec Torque Buy Now Status
AR8900 ARP2000 1 3/8" / 1.600" Under Head Length 45 Ft Lbs In-Stock
AR8910 Custom Age 625+ 1 3/8" / 1.600" Under Head Length 48 Ft Lbs In-Stock
CONNECTING ROD BUSHINGS
BC Brian Crower connecting rod bushings are available for purchase as replacements to existing bushings that come installed in all new BC connecting rods. Manufactured from Aluminum/Silicone/Bronze material. Bushings are one piece billet and are sold separately as one only units.

Replacement rod bushings are sold as a one only unit, please specify total number of bushings required when ordering.

Part # Description # Qty # Buy Now Status
BC8700 .787"/20mm 1 In-Stock
BC8701 .827"/21mm 1 In-Stock
BC8702 .866"/22mm 1 In-Stock
BC8703 .905"/23mm 1 In-Stock
619.749.9018 ph
619.749.9128 fx
Some products listed are not legal for sale or use on emission controlled motor vehicles, RPM ranges vary on application.Warranty Information Copyright © Brian Crower Inc. All rights reserved..
WARNING: This product can expose you to chemicals, including Chromium (hexavalent compounds), lead and lead compounds, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov