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ARP Headbolt part number and where to find

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Give arp themselves a call.
1863 Eastman Avenue
Ventura, CA 93003
Hours: 7:30am - 4:30 pm PST
Will Call Hours: 8:00am - 4:00pm PST

Order Desk & Technical Support: 800.826.3045 or 805.339.2200, fax: 805.650.0742, [email protected]

Sales & Marketing: 805.339.2200
 
I had once already and am currently waiting for a reply again. Was hoping my fellow DSMers could help me out quicker.

The part number they had given me last time was incorrect. They'd said I needed a bolt with part number: ap4.500-1lb. I'd ordered and received one from summit...and it was NOT the same as the others I have. It had fine threads that worked on one end, but the other had wider threads. None of my washers worked on it. Wouldn't fit in the block at all. Was thinking it might have been for a 6-bolt or different model.

I'm needing my engine put back together ASAP because my gf is heading out of the country and leaving the car at the airport...so I'll be stuck with only my motorcycle. Wouldn't bother me normally, but I don't feel like driving to work in the rain while wearing dress shirt and slacks.

Again, any help is appreciated.
 
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