Connecting rod, VW journal 137.16 mm / 5.400"

Chromium Molybdenum rods

When tuning an engine, everything to be detailed, the connecting rods play an important role in the durability and quality. The original is therefore quickly put aside, the possibilities are thus very limited, especially if it is a large stroke motor. A perfect engine has a perfect set of connecting rods need developed for more power than the standard 50 hp. All connecting rods are manufactured from chrome molybdenum in I- beam or H- beam design and comes in sets of 4 pieces which by weight are aligned and equipped 8740 3/8 inch or 8740 5/16 inch bolts, which are also available separately are as a replacement part.

I- beam connecting rods

I- beam connecting rods have their name from the shape physically similar to the original. I- beam connecting rods are manufactured from 4140 chrome moly and are designed so that as little material as possible should be removed from the sump to a crankshaft with a stroke of 74 mm or greater understanding. I- beam connecting rods are suitable for crankshafts with a VW bearing journal (55mm), the standard 1300-1500-1600 cc length (137 mm) and feature 8740 3/8 inch chrome molybdenum which bolts to a torque of 52.8 Nm should be tightened. Note: there is also a cheaper alternative but to use 5/16 inch I- beam bolts, which are not available separately (8740 3/8 inch or so, see replacement parts). Since the bolts but once may be you could have a whole new set to purchase, we find that the price difference is not worth.

H- beam connecting rods

These 4340 chrome molybdenum rods with the shape of the letter H are made ​​in one piece and only assigned to those who want the best of the best on the market what is available. There are two types of H- beam connecting rods available, with a VW lower bed and a lower bed Chevrolet. The VW connecting rods should be used on a crankshaft with a VW bearing journal (55 mm) or the original type 1.3 or CT / CZ sizes and Chevrolet connecting rods are controlled if you take a crankshaft with a Chevrolet bearing journal (51 mm). The latter has the advantage that more material is present around the lagerbed or a lot stronger than a rod based on the VW lagerbed , Chevrolet connecting rods are therefore much more durable and can handle more power. The VW connecting rods use the original bearings while Chevrolet connecting rods bearings need to Chevrolet measure (see relatives). All H- beam connecting rods are like the I- beam specimens designed so that as little material as possible from the sump must be removed. It is worth to recommend it as a base to start from the super stock crankcase, which is adapted for high power engines and a crankshaft with a larger stroke. The indicated length is the length of the connecting rod is measured from center to center (the standard 1300/1500 and 1600 connecting rods to measure a length of 137 mm). Supplied with 8740 chrome moly ARP 2000 5/16 inch bolts which withstand a tensile load of 200,000 psi . These bolts must be tightened with 40.7 Nm and may not be reused if they are more than 0.0508 millimeters are allocated, we therefore recommend strongly they never reuse all risks to exclude (available separately see replacement parts). all mentioned rods are suitable for type 1, type 3 and CT / CZ motorcycles