Edelbrock part #28457 Victor JR. LS3 intake manifold is designed for Gen IV LS engines equipped with LS3, L92 and L76 cylinder heads. This manifold is for carbureted racing applications operating between 3500-7500 rpm. This manifold uses a standard square bore carb flange that is compatible. The LS3, L92 and L76 all use the same cylinder head.
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Uses LS3/L76/L92 style individual port O-ring seals GM PN19256623; 4150 Carb flange; Throttle body recommendations: Edelbrock #38783; L92 heads are intended for 4.00" bores and will not work with 5.7L blocks without valve reliefs; Manifold Dimensions: Roof to bolt centerline-1.85", Floor to bolt centerline -0.57", Hieght-2.42", Carb pad height 7.40"