TBS 10330 remanufactured GM TBI injector pod bottom casting TBI-220 systems 1986-95 TBI-220 systems 1986-95 Fits: 2.8L 4.3L 5.0L & 5.7L Silverado Sierra Suburban Yukon Blazer Camaro Firebird Caprice S10 Jimmy Newly remanufactured clened, threads checked and tapped as needed - works with your OEM hardware Not for 7.4L TBI or marine motors - Message us if you need a BBC casting Please lubricate injector orings and make sure everything snaps together w/ hand pressure only Injectors must be oriented correctly to go together properly. Test fit w/out seals if you are not sure