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Post  dave d on June 1st 2012, 7:26 pm

OK here's my problem,bought heads studs arp 155-4203 bbf---bolts are to long for heads,they measure roughly 6-6 1/8 short ones long ones are 7 7/16-7 1/2 using tape measure.THEY DON'T fit my heads trick flow429-460 stock style heads. What do i need to get ? The shorter ones will fit on outside bolt holes but two inch different on the inside. HELP Question THANKS Dave bought these from a member on here awhile back
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Re: HELP

Post  cool40 on June 1st 2012, 11:49 pm

you may have A-460 studs...... confused
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Re: HELP

Post  samiam on June 2nd 2012, 12:02 am

Those studs fit aftermarket heads only, Kaase, A-429,SVO Aluminum
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Re: HELP

Post  rmcomprandy on June 2nd 2012, 11:29 am

dave d wrote:OK here's my problem,bought heads studs arp 155-4203 bbf---bolts are to long for heads,they measure roughly 6-6 1/8 short ones long ones are 7 7/16-7 1/2 using tape measure.THEY DON'T fit my heads trick flow429-460 stock style heads. What do i need to get ? The shorter ones will fit on outside bolt holes but two inch different on the inside. HELP Question THANKS Dave bought these from a member on here awhile back

I buy studs separately from B&B however, the lengths are the same no matter where they come from.
For stock type heads, the longer outside studs are 5 3/4 inches long and the inner shorter studs are 5 inches long. That is with at least 1 inch of coarse threaded end going into the block.

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Re: HELP

Post  bigblok2000ranger on June 6th 2012, 5:02 pm

If they are for the A460 heads do want to sell them??? I need a set very badly!
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Re: HELP

Post  kjett on June 6th 2012, 8:41 pm

bigblok2000ranger wrote:If they are for the A460 heads do want to sell them??? I need a set very badly!

You can't use them. That part # is for the older A429, Kaase P51's, and newer FRPP SCJ's. Won't be right for A460 heads, I'm in the same boat and need a set. Mad
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Re: HELP

Post  bigblok2000ranger on June 6th 2012, 8:47 pm

Its gotta be the wrong part number on the box because those are the lengths for A460 heads according to what arp told Rich. We have a set of 6.550 and 5.550 and they are ~.500" too short but they were in a box labeled as A460 studs.

I believe correct lengths are 7.625 and 6.120" for the A heads.
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Re: HELP

Post  kjett on June 6th 2012, 9:04 pm

Hmm, maybe so. I went and checked the box I got to use on my d0ves and its the same part number listed here. Looking at ARP's site, they say a 255-4304 is needed for A, B, and C-460 heads.
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Re: HELP

Post  bigblok2000ranger on June 6th 2012, 9:31 pm

We need some really badly and it hurts my butthole a little thinking about the fact that ARP discontinued the ten bolt set that was about $80 cheaper and now sells the eighteen bolt set under the part number.
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Re: HELP

Post  Lem Evans on June 6th 2012, 9:55 pm

ARP 255-4304 is the 10 bolt A460 12 point nut stud kit.

TFS-54504304A is the TFS kit for the additional fastners for the 18 bolt heads.


Last edited by Lem Evans on June 6th 2012, 10:25 pm; edited 1 time in total

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Re: HELP

Post  kjett on June 6th 2012, 9:58 pm

Lem Evans wrote:ARP 255-4304 is the 10 bolt A460 12 point nut stud kit.

TFS-54504304 is the TFS kit for the additional fastners for the 18 bolt heads.

Thanks Lem, That's good info to know!
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