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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
5/16-24 and 3/8-24 in Thread
Stud and nut included
Eyeport on all ST5 helmets is taller than the previous ST4 and has a special visor to accommodate the larger opening
Pyrovatex ® FRC fabric is gentle and non-irritating to even the most sensitive skin
Optional: Air intakes
ARP Head Stud Kit GM 6.6L Duramax Ear Cup Speakers 5/16-24 and 3/8-24 in ThreadARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Cylinder Head Stud 12 Point
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