GMC 5.7 Vortec Heads 1996 /02 Reman Exchange Van Pickup 906 casting

Chevrolet Pickup Truck Heavy Duty cylinder Heads have just been Professionally Re-manufactured to like new specs.sold as singles, please buy them both pleaseThey have been Completely cleaned and crack checked, and resurfaced decks. Complete valve job d 1 with high performance equipmentCarbide pilots and multi-angle seat cutters. Valve springs are tested and corrected to proper pressuresand spring h 8 s corrected equallyEverything reassembled with new valve seals and shrink-wrapped for storage. These heads are casting number # 906 or the entire number is 10239906 , these are identical heads . These fit 1996 to 2002 GM Chevy GMC Trucks vans Suburban Tahoe with the 5.7 L fuel injected engine . Being sold in an exchange system.that means, you bring me your rebuild-able heads and take these 1 sIf you dont have heads 100.00 each core charge, or yours are cracked, there will be a 90.00 core charge per head.These heads are already painted Black, and are ready for immediate installation. Ive been a Professional Engine Machinist for 30 years, and Im just trying to help some 1 out that is looking for these heads. Call.952-854-5786 P.S. Please get a gasket set, ahead of time, so you can bring me the valve stem seals out of itI have new 1 s on the headslast Picture is the seals