Molnar Technologies Billet Conrods & Crankshafts

Molnar Technologies H Beam Connecting rods

Quality Molnar Technologies connecting rods and crankshafts are intricate components for a performance or race engine. Speedfactor Ltd is proud to be associated with Molnar Technologies who have over 30+ years experience in the design, manufacture and exceptional finish quality for crankshafts and H beam billet conrods.

Designed with target horsepower and torque requirements for different engines, means the rods are produced with different target weights, conrod beam widths and bolt dimensions. They are either manufactured in a lightweight normally aspirated connecting rod form or in a heavier H beam section with longer rod bolts, for engines with supercharged or turbocharged induction.

Molnar technologies H beam connecting rods feature state of the art materials, manufactured from 4340 billet material, heat treated to increase tensile strength and are shot pened to increase fatigue life. All rods have a wear resistant bronze small end bushes for long wrist pin life.

All rods are fitted with ARP 2000 series Asymmetrical rod bolts and offer some of the closest tolerances in connecting rod accuracy in the market place today!

Reliability, strength at an affordable price!


Speedfactor Ltd works with Molnar Technologies to bring a range of custom rods specifically and exclusively manufactured for us.

Some of the engines covered in the Molnar Technologies range

-Audi and VW 4 and 5 cylinders

-BMW M20 M42 M44 M50 M52 M54 S54 M62 V8 135mm 138mm 140mm 142.8mm 145mm

-New customs S50 B32 BMW M3 3.2 H beam Billet lightweight rods and the new N54 N55 B30

-Ford Duratec YB Cosworth Pinto and Zetec

-Honda B16A B18B B18C B20B D16 D17 F23A K20A K24A R18A ZC

-Honda B16B Type R custom

-Custom length Honda rods for selective models.

-Hyundai 4B11

-Mazda B6 BP MZR

-Mitsubishi 4G63 4G93

-Nissan RB25 RB26 SR20 QR25DE

-Opel Vauxhaul Z16XE C20XE

-Subaru EJ20 EJ25 EJ25D

-Suzuki G16 M18



-Large range of Ford Chevy Buick Chrysler 6 and 8 cylinder


Check with us for your performance connecting rod requirement and we can produce customs for special application.



Molnar Technologies Billet Crankshafts

Molnar Technologies Billet 4340 forged crankshafts are heat treated to increase tensile strength, shot peened to increase fatigue life, nitrided for wear resistance and 100% mag particle inspected to insure against cracks. Sizes held to the tightest tolerances you'll find in the racing industry.

BMW M42 88mm (Speedfactor custom)

Mitsubishi 4G63 88mm 94mm 97mm

Subaru EJ20 EJ25 75mm 79mm 83mm