General description The Connecting Rods for BMW 3 and 5 Series E30 E28 2.7L M20B27 325E are high-performance forged conrods designed for racing applications. Made from forged 4340 aircraft chrome moly quality steel, these H-beam conrods provide exceptional strength and durability. Each set includes six pieces and features ARP 2000 bolts rated at 220,000 psi, with an optional upgrade to ARP L19 bolts rated at 260,000 psi. Technical specifications Advertised Horsepower Rating: 200HP/piece Top acceleration: 9000rpm Center to center length: 130mm / 5.118" Big end diameter: 48mm / 1.89" Small end diameter: 22mm / 0.866" Big end width: 21.9mm / 0.862" Small end width: 21.9mm / 0.862" Package size: 28CM x 21CM x 14CM Installation Professional installation is highly recommended to ensure optimal performance and reliability. Usage These connecting rods are specifically designed for the following BMW models: BMW E30 3 Series 325e (1982–1987) BMW E28 5 Series 525e (1982–1988) BMW E30 3 Series