Guess this piston
#2538310
08/18/18 11:47 PM
08/18/18 11:47 PM
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Joined: Mar 2008
Posts: 553 Kentucky
clovis
OP
mopar
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OP
mopar
Joined: Mar 2008
Posts: 553
Kentucky
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This is a 383 I bought and the guy said it had never been run. It has been together for over 10 years just sitting in the guys garage. It is a nice old school build - 906’s, 509 cam, TM-6, Demon 850.
I have searched the internet and can’t seem to find any details on this piston. I saw one on Mancini’s site that seems to have the same shape of relief in the picture, but the description said it was a 5cc relief. I am just having a hard time believing that is 5cc relief. I am going to try to roll it on its side tomorrow to see if I can at least get close to measuring, but thought someone on here probably knows exactly what it is.
Thanks
'75 Plymouth Duster Phase I 451 906/590/2-660 10.75/126 Phase II 451 Stage VI/590/1050 9.82/135 Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: Guess this piston
[Re: clovis]
#2538437
08/19/18 04:28 AM
08/19/18 04:28 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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but the description said it was a 5cc relief. I am just having a hard time believing that is 5cc relief. fill the reliefs flush with the surface with clay then roll it up out of there & with your burette filled up pretty high to say 60 CC with water, kneed/roll the clay into a long rope with your palms then drop it into the burette & see how far the water rises. It for sure looks way more than 5
live every 24 hour block of time like it's your last day on earth
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Re: Guess this piston
[Re: DblOJoe]
#2538468
08/19/18 10:57 AM
08/19/18 10:57 AM
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Joined: May 2005
Posts: 1,958 Apollo, PA.
B1MAXX
top fuel
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top fuel
Joined: May 2005
Posts: 1,958
Apollo, PA.
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Looks like a kb162 Kieth Black piston.
That was the first thing I thought too. If you look at Summit it will have extra wedges cut out in them , but over the years they have changed the configuration around. Look at Hughes web site and they have a picture of the older version like the ones you have.
Last edited by B1MAXX; 08/19/18 11:05 AM.
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Re: Guess this piston
[Re: clovis]
#2538875
08/20/18 08:44 AM
08/20/18 08:44 AM
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Joined: Mar 2008
Posts: 553 Kentucky
clovis
OP
mopar
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OP
mopar
Joined: Mar 2008
Posts: 553
Kentucky
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Thanks for the help, KB 162 it is. I was able to match up the picture on the Hughes site. I decided to measure and they are in fact 5cc relief.
'75 Plymouth Duster Phase I 451 906/590/2-660 10.75/126 Phase II 451 Stage VI/590/1050 9.82/135 Phase III 383 906/Victor-Pump gas 11.30/119
"For by grace you have been saved through faith. And this is not your own doing; it is the gift of God,"
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Re: Guess this piston
[Re: Sport440]
#2539465
08/21/18 10:23 AM
08/21/18 10:23 AM
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Joined: Jan 2003
Posts: 13,345 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,345
Marion, South Carolina [><]
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KB 162, and it is rated 5cc relief. Basically a stock piston replacement. 8.6 comp with a 90 cc head, 10.2 with a 72cc head. Put a set of them in the '70 383 HP engine I rebuilt 10+ years ago. Only set that gave any reasonable amount of compression. Still ended up decking the 906 heads down a good bit.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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