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Re: ARP head stud lenght
[Re: '72CudaRacer]
#2459691
03/02/18 12:20 AM
03/02/18 12:20 AM
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Joined: Aug 2003
Posts: 43,118 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,118
Bend,OR USA
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Doesn't ARP list their B1 head stud kit for your heads? If you have their part number now I would call them and get you the correct parts to you ASAP for no charge. What is the part number of the kit your using? The reason I'm asking is the first B1 kit I bought was going to come with 51 CC heads, I didn't want that small of a chamber so I ended up getting them with 76 CC I have a set of B1-MC heads now that I haven't CC yet so knowing your kit number may help me later Thanks in advance
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: ARP head stud lenght
[Re: Cab_Burge]
#2459717
03/02/18 12:56 AM
03/02/18 12:56 AM
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Joined: Aug 2009
Posts: 2,039 Mooresburg, Tn
'72CudaRacer
OP
top fuel
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OP
top fuel
Joined: Aug 2009
Posts: 2,039
Mooresburg, Tn
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Not 100% sure of the kit number Cab, but I talked to Scott Koffel today, and he confirmed that the studs in the ARP B1 kit is the same length as the studs that I have on this engine (2.750"). From what he told me about the deck surface thickness of these heads compared to stock (as they were when they left his place) it looks as if these heads have been milled about .200". The bottom row of studs had to have two washers (on each stud) to keep the nuts from running out of threads, and even then, there was almost .500" stud sticking out of the nut (looks really shade tree to me!). And this is with .065" head gasket. What don't make any since to me is the long studs only had one washer and approx 2 threads above the top of the nuts. Hard for me to believe that ARP would sell a kit that didn't fit any better than this. These are B1-MC heads also. Brian
Last edited by '72CudaRacer; 03/02/18 01:02 AM.
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Re: ARP head stud lenght
[Re: Cab_Burge]
#2459720
03/02/18 01:00 AM
03/02/18 01:00 AM
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Joined: Aug 2009
Posts: 2,039 Mooresburg, Tn
'72CudaRacer
OP
top fuel
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OP
top fuel
Joined: Aug 2009
Posts: 2,039
Mooresburg, Tn
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Doesn't ARP list their B1 head stud kit for your heads? If you have their part number now I would call them and get you the correct parts to you ASAP for no charge.
This engine was brought to me to be repaired. It has been through AT LEAST 3 different owners since it left Koffel's. I am trying to fix stupid stuff now. Brian
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Re: ARP head stud lenght
[Re: '72CudaRacer]
#2459830
03/02/18 10:51 AM
03/02/18 10:51 AM
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Joined: Jul 2005
Posts: 636 Graz, Austria
DGS
mopar
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mopar
Joined: Jul 2005
Posts: 636
Graz, Austria
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You have to get the following head studs: AP2.725-1B
These are 2.725" long but also have a longer coarse threaded portion: 1.150" vs. 1" (screw in deeper into the block).
Summit can order them for you.
The studs come in an ARP kit as well - part number for the kit is 134-4201 (small block Chevy). The kit comes with 16 of the shorter studs and 4 studs in 4.150" and 14 studs in 4.750"
Last edited by DGS; 03/02/18 11:00 AM.
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