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Are these used pistons any good?
#2920783
05/10/21 02:59 PM
05/10/21 02:59 PM
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Joined: Jun 2018
Posts: 114 Oklahoma City, Oklahoma
MrMayhem
OP
member
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OP
member
Joined: Jun 2018
Posts: 114
Oklahoma City, Oklahoma
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I bought a set of Ross pistons from a FB seller that arrived a while back. I opened the box to find a few concerns that I would like more experienced builders to review. About 4 of the pistons show what appears to be light corrosion of the aluminum which can be felt if you drag your fingernail over the areas. It seems to clean up easy enough with a brillow pad but before I move any further with these I would like your input... here is a link to the part number of the pistons: https://www.rosspistons.com/product...op-4-350-bore-3-750-stroke-3-50cc-82008/
Last edited by MrMayhem; 05/10/21 05:55 PM.
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Re: Are these used pistons any good?
[Re: MrMayhem]
#2920787
05/10/21 03:14 PM
05/10/21 03:14 PM
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Joined: Aug 2011
Posts: 2,871 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,871
Pattison Texas
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I would not run a piston that has been bead blasted, especially in the ring groves
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Are these used pistons any good?
[Re: MrMayhem]
#2920853
05/10/21 05:30 PM
05/10/21 05:30 PM
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Joined: Aug 2019
Posts: 9,548 Super Spudsville
Mr PotatoHead
Half Baked
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Half Baked
Joined: Aug 2019
Posts: 9,548
Super Spudsville
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Id send them goofy heavy things back to hot street 1978. I think youd do better even with a current set of hypers vs them. Corrosion/detonation? on that top.... meh.... beater dirt track all day long, id not spend the $200 balance money on those for street use.
Whats the compression height on those? Dont look setup for much of a cam or are they deep in the hole?
STOP POTATO HATE!
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Re: Are these used pistons any good?
[Re: Mr PotatoHead]
#2920859
05/10/21 05:52 PM
05/10/21 05:52 PM
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Joined: Jun 2018
Posts: 114 Oklahoma City, Oklahoma
MrMayhem
OP
member
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OP
member
Joined: Jun 2018
Posts: 114
Oklahoma City, Oklahoma
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Compression height of 2.067, supposed to produce 10:1 Compression with 84 cc head according to Ross Pistons. https://www.rosspistons.com/product...op-4-350-bore-3-750-stroke-3-50cc-82008/ Same part part number on the box. Id send them goofy heavy things back to hot street 1978. I think youd do better even with a current set of hypers vs them. Corrosion/detonation? on that top.... meh.... beater dirt track all day long, id not spend the $200 balance money on those for street use.
Whats the compression height on those? Dont look setup for much of a cam or are they deep in the hole?
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Re: Are these used pistons any good?
[Re: MrMayhem]
#2920863
05/10/21 06:02 PM
05/10/21 06:02 PM
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Joined: Aug 2019
Posts: 9,548 Super Spudsville
Mr PotatoHead
Half Baked
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Half Baked
Joined: Aug 2019
Posts: 9,548
Super Spudsville
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That top look mighty porous. Ive had some that had minor signs of detonation I sent out and got the tops coated and never had a issue.
Them look like older pistons for some reason, maybe the dull finish.
Id be on the fence to use them as they are but opinions vary.
STOP POTATO HATE!
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Re: Are these used pistons any good?
[Re: MrMayhem]
#2920949
05/10/21 09:45 PM
05/10/21 09:45 PM
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Joined: May 2005
Posts: 2,007 Apollo, PA.
B1MAXX
top fuel
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top fuel
Joined: May 2005
Posts: 2,007
Apollo, PA.
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If the pistons are usable for a hot street motor, what would be the best method to remove the corrosion or oxidation?
a little scotchbrite and some wd
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