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Bland
Tim Bland
Oregon
(27 posts)

Registered:
01/22/2017 11:15PM

Main British Car:
1980 Triumph TR8 Rover 3.5

authors avatar
ARP Main Studs
Posted by: Bland
Date: September 03, 2019 03:23PM

I have two sets of ARP main studs for a 3.5. Does anyone know if these studs will work with a 4.6?

Tim


MGBV8
Carl Floyd
Kingsport, TN
(3749 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: ARP Main Studs
Posted by: MGBV8
Date: September 03, 2019 05:46PM

Should. Do you have a part # to verify?


mgb260
Jim Nichols
Sequim,WA
(1978 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: ARP Main Studs
Posted by: mgb260
Date: September 03, 2019 08:11PM

I don't know for sure if they would work but the main caps are different with crossbolts. Really not necessary. I would use shims for the crossbolts after the mains are torqued first.


minorv8
Jukka Harkola

(165 posts)

Registered:
04/08/2009 06:50AM

Main British Car:
Morris Minor Rover V8

Re: ARP Main Studs
Posted by: minorv8
Date: September 04, 2019 12:15AM

Yes, I have fitted ARP main bearing studs to a 4.6 block. Watch out the torque setting though. ARP recommended setting is pretty excessive. The crank in my block was locked solid before the ARP value was reached. If you use them I recommend that you check the bearing bores, you may need to line hone the main bearing bores.


MG four six eight
Bill Jacobson
Wa state
(298 posts)

Registered:
10/23/2007 02:15AM

Main British Car:
73 MGB Buick 215, Eaton/GM supercharger

Re: ARP Main Studs
Posted by: MG four six eight
Date: September 04, 2019 01:15AM

X2 with what minorv8 stated. I have them in my supercharged 215 and my machine shop highly recommended line honing when installing main studs, due to the increased clamping load.
It's not a bad idea to hone the rods also if you are using ARP rod bolts, as this will give you more consistent bearing clearances.

Bill


mgb260
Jim Nichols
Sequim,WA
(1978 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: ARP Main Studs
Posted by: mgb260
Date: September 04, 2019 10:01AM

Definitely agree with Bill on ARP studs for the 215/3.5. The original poster was wondering if the ARP studs for the 215 would fit the later crossbolt block or if they were different.


Bland
Tim Bland
Oregon
(27 posts)

Registered:
01/22/2017 11:15PM

Main British Car:
1980 Triumph TR8 Rover 3.5

authors avatar
Re: ARP Main Studs
Posted by: Bland
Date: September 04, 2019 08:50PM

I have two sets of part number 124-5401.

Tim



MGBV8
Carl Floyd
Kingsport, TN
(3749 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: ARP Main Studs
Posted by: MGBV8
Date: September 05, 2019 11:58AM

124-5401 is for teh Buick 215. ARP web site shows 157-5401 for the 4.0 & 4.6 The kit comes with the main studs & the side bolts.

[arp-bolts.com]


minorv8
Jukka Harkola

(165 posts)

Registered:
04/08/2009 06:50AM

Main British Car:
Morris Minor Rover V8

Re: ARP Main Studs
Posted by: minorv8
Date: September 09, 2019 04:42AM

Here is a 4.6 block with 3.5 litre ARP studs.


ARP studs.jpg


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