Author Topic: How many header bolts are you using on shock tower cars  (Read 167 times)

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e philpott

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How many header bolts are you using on shock tower cars
« on: September 10, 2026, 03:51:33 PM »
You guys with headers in shock tower cars, are you using all four mounting bolts or just side two bolt locations and/or along with top bolt ?

That bottom bolt in my 63 Fairlane is a real mother F#*cker :)

fastback 427

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Re: How many header bolts are you using on shock tower cars
« Reply #1 on: September 10, 2026, 05:15:35 PM »
I use as many as I can get to. The small headed header bolts help a lot, along with some cheap wrenches I bent.
As long as they are on opposite sides you should be ok...
Jaime
67 fastback 427 center oiler 428 crank Dove aluminum
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67 fairlane gta cross bolted 12:1 390 Dove aluminum top end c6 3600 stall
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mike7570

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Re: How many header bolts are you using on shock tower cars
« Reply #2 on: September 10, 2026, 08:05:29 PM »
I put in 28 on the large tube Hooker race headers in a mustang. But then I’m a bit OCD.
New REF race headers only have 8 per side (top and bottom) easier than the Hookers but like the Hookers you have to install the individual tubes in the right order or your removing them multiple times until you get it right.
Ask me how I know. Haha!
« Last Edit: September 10, 2026, 08:13:39 PM by mike7570 »

mike7570

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Tools
« Reply #3 on: September 10, 2026, 08:11:58 PM »
These are a must have for the top and bottom bolts, I wish I had picked them up sooner.

« Last Edit: September 10, 2026, 08:59:09 PM by mike7570 »

GerryP

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Re: How many header bolts are you using on shock tower cars
« Reply #4 on: Today at 07:07:23 AM »
Nearly every engine on Earth uses two bolts per port.  Some, like the GMs, Mopars, and AMCs with siamesed center ports, use two for those ports.  Two works just fine.

e philpott

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Re: How many header bolts are you using on shock tower cars
« Reply #5 on: Today at 10:45:33 AM »
Thanks Gerry, Ive fought the 4 bolt for 30 years and think I'll take an easier route this time, Mike I hear you on the 4 bolt and OCD as I've been doing it that way since the beginning , Fastback 427 I been using the small bolt headed bolts too but my Crites headers are still tight

gregb

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Re: How many header bolts are you using on shock tower cars
« Reply #6 on: Today at 11:06:21 AM »
I’ve on,y ever used two per port…..