March Performance Straight Water Neck - 1-1/2 in ID Hose Barb - GM LS-Series MOJ994AXD RPM E-Tec cylinder heads are

RPM E-Tec cylinder heads are dual-drilled and will accept 1987-95 centerbolt and/or 1986 & prior perimeter flange mount valve covers and most stock exhaust manifolds

Hedman Hedders Painted Hedders Exhaust Hedder 65003 Tube Size 1

C15/C1500 Suburban

Compact Housing

March Performance Straight Water Neck - 1-1/2 in ID Hose Barb - GM LS-Series MOJ994AXD RPM E-Tec cylinder heads areProduct Description: Water Neck Straight 1 1 2 in ID Hose Barb O Ring Hardware Included Aluminum Clear Anodized GM LS Series All March Performance pulleys and brackets are manufactured with a unique blend of durability, performance and STYLE!. With over 30 years of aircraft and automotive manufacturing experience you can be assured that our systems will fit perfectly and run true! Quality Materials All kits are machined from 6061 T6 aircraft grade