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600 exhaust with AFR's hardened ductile iron interlocking valve seats
5" x 9" With 1/2" NPT Threads
AF4590-19970
valve covers
Withstands 1100°C (2000F) radiant heat and 650°C (1200F) direct heat and can be easily trimmed to desired size
Head Stud Kit, 12-Point AR234-4340 Product:fits Dart LS Next Iron Block Only With 15-Bolt Head 600 exhaust with AFR's hardenedHead Stud Kit, 12 Pointfits Dart LS Next Iron Block Only With 15 Bolt Head AR234 4340 234 4340 It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated far superior to "aircraft" quality
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