ARP head bult problems

[84 hot air]

Picked up ARP's part number 123-4003 head studs and tried to install them on my '84 hot air Buick, but the head studs were too long. Is there a specific part number for the correct studs or is user error?

 

[BRAD_PADGETT]

I have an 85 140 block with stock heads. My engine builder used ARP 123-4001 studs.

 

[Toby_Goodmk]

I run into the same problem with the head bolts, should be shorter mine were too long, so I needed a 123-3701

 

[2sloUknow]

I have now run into the same problem, shame on me for trusting the vendor and not checking here. Oh well, minor setback. Ordering the 123-4001 as I have stock heads. Luckily my 2 years ago purchased 4003 set can go to my 87 restore.

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["Black Ice"]

I had ARP to custom make up a pack for my '84 GN. If it wasn't for the help of Richard Clark I would be running factory bolts. I will post the part number and how many of each when I get home. If u guys can hold, currently at work now.

 

["Black Ice"]

My block cast is 25514290.

 

[Boost231]

You can get the correct arp bolts from TA performance fyi

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[2sloUknow]

You can get the correct arp bolts from TA performance fyi

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Yes but are they arp quality and do they ship fast? They list a different part number on their site.

 

[Boost231]

ARP quality? They're ARP bolts so....

Call them they have then on the shelf and usually ship sane day


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["Black Ice"]

For those of u that want thr ARP Bolt, text me. My phone won't let me upload the pics of the order sheet I had. Then I can text the pic straight to ur phone, just let me know when u text that u want the bolts. 336-504-5544

 

[Jerryl]

HA sticky post #68

 

[DMAC]

I used these from Sumitt Racing https://www.summitracing.com/parts/ARP-123-4201 Cant beat the price !

 

["Black Ice"]

I have a set of new ARP Head Studs # 123-4003, I bought thinking they would work. Once i seen that they wouldnt, didnt need them. Wish somebody was close by I could sale the to. Lol

 

[Mmffnick]

Had the same issue from ta's bolt set all u had to do is ad a extra washer to the 2 bolts on the ends they need to be a lil shorter even in the head bolt kit

 

[2sloUknow]

Had the same issue from ta's bolt set all u had to do is ad a extra washer to the 2 bolts on the ends they need to be a lil shorter even in the head bolt kit

Just a thought, do you trust a stacked washer to give you the consistent required clamping force you need, with the known issues these cars have with head gaskets? I am not sure I would trust it long term.

 

[Mmffnick]

Both my cars are this way with cosmetic gaskets one on 15 lbs that spiked the other day 19 no leaks yet lol