Pontiac 400 screw in studs
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Pontiac 400 screw in studs
Hey guys
I am trying to locate a replacement screw in stud to convert some press in studs in a pont. 400.
The stud hole is .434" with the stock press in stud removed making it necessary to install inserts into the heads to reduce the hole to 7/16 X 14 thread.
I don't see anything readily available that uses a 1/2" thread that will work on these heads.
Other then inserts any suggestions on studs
Dave
I am trying to locate a replacement screw in stud to convert some press in studs in a pont. 400.
The stud hole is .434" with the stock press in stud removed making it necessary to install inserts into the heads to reduce the hole to 7/16 X 14 thread.
I don't see anything readily available that uses a 1/2" thread that will work on these heads.
Other then inserts any suggestions on studs
Dave
Real Race Cars Don't Have Doors
Re: Pontiac 400 screw in studs
I've used 1/2 x 7/16 studs but not recently
they should still be available
round up the usual suspects
I don't see them in
ELGIN
they should still be available
round up the usual suspects
I don't see them in
ELGIN
Re: Pontiac 400 screw in studs
Hi Dave, ARP has them for the Pontiac application.
Thanks, Gary in N.Y.
P.S. Part number, 290-7201, should be available?
Thanks, Gary in N.Y.
P.S. Part number, 290-7201, should be available?
Sept. 2019 - Drag-Week Winner - New York Street Ride 7.23+ @ 196+ @ 3800#+
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Re: Pontiac 400 screw in studs
GOSFAST wrote:Hi Dave, ARP has them for the Pontiac application.
Thanks, Gary in N.Y.
P.S. Part number, 290-7201, should be available?
Thanks Gary
I did see something but was unsure if they were applicable to the pontiac head issue.
I will contact ARP and get more details tomorrow.
Dave
Real Race Cars Don't Have Doors
Re: Pontiac 400 screw in studs
Are these the studs that had the oil coming through the middle of them to lube the rockers and balls??ProPower engines wrote:GOSFAST wrote:Hi Dave, ARP has them for the Pontiac application.
Thanks, Gary in N.Y.
P.S. Part number, 290-7201, should be available?
Thanks Gary
I did see something but was unsure if they were applicable to the pontiac head issue.
I will contact ARP and get more details tomorrow.
Dave
pdq67
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Re: Pontiac 400 screw in studs
Same exact stud design but no center oiling to rockers.
The later heads I have are not drilled for the rocker oiling.
The later heads I have are not drilled for the rocker oiling.
Real Race Cars Don't Have Doors
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Re: Pontiac 400 screw in studs
Screw in stud
The boss may have to be milled down to account for the hex head of the stud.
(to get the correct height for the rocker ball)
The boss may have to be milled down to account for the hex head of the stud.
(to get the correct height for the rocker ball)
John Wallace
Pontiac Power RULES !
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Pontiac Power RULES !
www.wallaceracing.com
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Re: Pontiac 400 screw in studs
John,later heads that have the guide plates bolted to the heads I believe dont have to be milled.The early heads without guide plates usually do if a shouldered stud.There were studs out there that were screwin but no shoulder that would not require to be milled.I think Isky made them.Tom
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Re: Pontiac 400 screw in studs
Thanks Guys
I found the ARP studs in stock in Ohio.
They are the 1/2 X 7/16 just for these heads.
They are on the way now
Thanks again
Dave C
I found the ARP studs in stock in Ohio.
They are the 1/2 X 7/16 just for these heads.
They are on the way now
Thanks again
Dave C
Real Race Cars Don't Have Doors
Re: Pontiac 400 screw in studs
As mentioned ARP makes a 7/16 stud with 1/2 bottom. Don't recall having to mill the bosses on '66 up Pontiacs when converting to screw ins.
Pioneer made 3/8" studs without the hex. They had a 7/16 bottom. Number was something like RS-348?
Pioneer made 3/8" studs without the hex. They had a 7/16 bottom. Number was something like RS-348?
Monty Frerichs
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