H-beam connecting rods are designed for racing applications to increase horsepower and efficiency.The strength supports horsepower use while maintaining low weight.Professional processing provides wear resistance and function.For use with 1.6L engines from 1994–2000 model years.Type: Forged 4340 aircraft-grade moly steel Quantity: 4 pieces Bolts: Not included Optional bolt available: 3/8 inch bolts rated at 220, 000 psi or L19 bolts rated at 260, 000 psi Advertised horsepower rating: 200 per rod Maximum recommended engine speed: 9000 rpm Package size: 28 cm × 21 cm × 10 cm Dimensions: Center-to-center length: 134.36 mm (5.29 in) Big end diameter: 48 mm (1.89 in) Small end diameter: 21 mm (0.827 in) Big end width: 23.75 mm (0.935 in) Small end width: 21 mm (0.827 in) Features: certified H-beam design balances weight reduction and structural integrity Heat-treated and shot-peened to improve fatigue resistance and eliminate stress risers CNC machined with rod cap alignment dowels Bores finished to ±0.01 mm tolerance Balanced to within ±1 g per rod Magnetic particle inspected for flaws X-rayed and sonic tested Custom manufacturing available