Locking header bolts
Printed From: The Ford Torino Page
Category: Powertrain Specific Forum
Forum Name: 335 Series Engine Forum
Forum Description: 351C, 351M and 400 engines
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=11050
Printed Date: 26-March-2026 at 5:41PM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: Locking header bolts
Posted By: 75GranMan
Subject: Locking header bolts
Date Posted: 17-June-2014 at 3:25PM
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I'm getting ready to drop my 351 CJ in and was wondering what everyone has used for header bolts? please post the brand/ part# and your review on how they perform ------------- John 75Gran Torino 4spd  |
Replies:
Posted By: GranTorinoSport
Date Posted: 17-June-2014 at 4:19PM
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On my 521 I used ARP P/N 400-1202. The same will work for 351C. These are 12 point stainless bolts. The 12 point small head allowed me to tighten them with a wrench, because some of them you can not get to without a wrench. 351C won't have that problem, however. I am a big ARP fan, as I have had really good luck with their products over the years. You pay more, but they are worth it in my opinion. ------------- Scott Eklund Webmaster |
Posted By: 75GranMan
Date Posted: 15-July-2014 at 2:15PM
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When I purchased my FPA headers, they came with 3/8-16 X 1 header bolts. I opted for locking header bolts, so I ordered Stage 8, 3/8-16 X1 header bolts. My Aussie heads have recessed threads on the exhaust side of the cylinder head and with the thickness of the header flange and gasket, the 1" bolts only thread about a 1/4" into the head. I'll need to use 1 1/4 bolts so enough threads are holding. Does anyone have acess to standard 351C head to see if the bolts hole threads are flush to the head surface or recessed like on my aussie heads? ------------- John 75Gran Torino 4spd |