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Old 11-01-2019, 03:54 PM   #1
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8.1 ex manifold studs?

Afternoon all.elementary question I know but are the studs and bvolts on that standard or metric.tks for all the advice and info guys

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Old 11-01-2019, 06:55 PM   #2
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Hereís what I used, I didnít replace with GM parts that would only rust again. Note that the ARP #400-8014 studs are M8-1.25mm.

For the studs: ARP #400-8014 (8 studs in kit, only use 7)

For the manifold bolt: ARP #771-1002 (use the beveled washer from the stud not used in the prior kit)

For the heat shield bolts: ARP #771-1017 (16mm long)

For the extra nuts for the heat shield: ARP #400-8311 (This is a bubble pack of two nuts. I couldn't find this part so I bought the individual nuts which is ARP #400-8310)

I also used Permatex 2600 degree anti-seize on the threads.
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