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Does anybody have an OEM 426 STREET HEMI piston/pin on hand? #3039518
05/03/22 09:28 PM
05/03/22 09:28 PM
Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo Offline OP
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domingo  Offline OP
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Lima, Peru
I am asking because I have an NOS set of street hemi pistons which I intend to use on a bone stock build, but I am missing the wrist pins.

I want to see if the correct sized 1.030" wrist pins are available as an off the shelf item, or if I would need to have a custom set of wrist pins ordered.

So, if you have a set of OEM street hemi pistons and pins please let me know what the wrist pin dimensions are. up

Also, I am missing 2 wrist pin retaining locks grin for my OEM street hemi pistons ..... if anybody cares to spare a pair..... wave


Last edited by domingo; 05/03/22 09:31 PM.
Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: domingo] #3039526
05/03/22 10:00 PM
05/03/22 10:00 PM
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VA
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dragon slayer Offline
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You can find it in the service manual. 3.400" + or- .005" Length. 204 grams. 1.031-1.0312" Dia

Last edited by dragon slayer; 05/04/22 09:14 PM.
Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: dragon slayer] #3039543
05/03/22 11:27 PM
05/03/22 11:27 PM
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Bend,OR USA
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Cab_Burge Offline
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Originally Posted by dragon slayer
You can find it in the service manual. 3.400" + or- .005" Length. 204 grams. 1.031-1.3012" Dia
Do you mean to post 1.031 to 1.032?


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: dragon slayer] #3039553
05/04/22 12:38 AM
05/04/22 12:38 AM
Joined: May 2019
Posts: 712
Lake Villa Il
INTMD8 Offline
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INTMD8  Offline
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Lake Villa Il
My car had a 426 "crate" ? Hemi when I bought it. I've since rebuilt it as it was a complete slug.

The old wrist pins seem to match what dragon slayer posted.

You're welcome to them if you want them (and the pistons if you want them).

That being said, my unsolicited opinion is, even on a stock rebuild I would go with a modern piston/ring pack vs NOS/ancient.


69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: dragon slayer] #3039615
05/04/22 09:47 AM
05/04/22 09:47 AM
Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo Offline OP
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domingo  Offline OP
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Lima, Peru
Originally Posted by dragon slayer
You can find it in the service manual. 3.400" + or- .005" Length. 204 grams. 1.031-1.3012" Dia


Thanks for the reply....but there is also an important dimension missing and that would be wall thickness. Hemi pistons are so heavy I guess the hemi pins will have thicker walls?

Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: INTMD8] #3039616
05/04/22 09:47 AM
05/04/22 09:47 AM
Joined: Jan 2003
Posts: 9,670
Lima, Peru
domingo Offline OP
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domingo  Offline OP
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Posts: 9,670
Lima, Peru
Originally Posted by INTMD8
My car had a 426 "crate" ? Hemi when I bought it. I've since rebuilt it as it was a complete slug.

The old wrist pins seem to match what dragon slayer posted.

You're welcome to them if you want them (and the pistons if you want them).

That being said, my unsolicited opinion is, even on a stock rebuild I would go with a modern piston/ring pack vs NOS/ancient.


email sent!!!!! laugh

Re: Does anybody have an OEM 426 STREET HEMI piston/pin on hand? [Re: Cab_Burge] #3039813
05/04/22 09:16 PM
05/04/22 09:16 PM
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Posts: 1,322
VA
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dragon slayer Offline
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Originally Posted by Cab_Burge
Originally Posted by dragon slayer
You can find it in the service manual. 3.400" + or- .005" Length. 204 grams. 1.031-1.3012" Dia
Do you mean to post 1.031 to 1.032?


Yes I did. Corrected post.

Wall thickness not given. But that is not critical if the pin is spec'd to a hemi. But I guess you could figure it out with density and the weight. Solve for thickness since you have the area measurements. grin







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