Are these used pistons any good? - Moparts Forums

Register Log In Moparts Forums Moparts Question and Answer Are these used pistons any good?

Print Thread

Are these used pistons any good? #2920783 05/10/21 02:59 PM 05/10/21 02:59 PM
Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma M MrMayhem OP member
MrMayhem OP member M Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma	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.

Re: Are these used pistons any good? [Re: MrMayhem] #2920787 05/10/21 03:14 PM 05/10/21 03:14 PM
Joined: Aug 2011 Posts: 2,864 Pattison Texas CSK master
CSK master Joined: Aug 2011 Posts: 2,864 Pattison Texas	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

Re: Are these used pistons any good? [Re: CSK] #2920788 05/10/21 03:16 PM 05/10/21 03:16 PM
Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma M MrMayhem OP member
MrMayhem OP member M Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma	I dont think it has been bead blasted.... the surface is very smooth.

Re: Are these used pistons any good? [Re: MrMayhem] #2920838 05/10/21 05:03 PM 05/10/21 05:03 PM
Joined: May 2005 Posts: 1,992 Apollo, PA. B1MAXX top fuel
B1MAXX top fuel Joined: May 2005 Posts: 1,992 Apollo, PA.	Will the engine blow up because of it.... no.

Re: Are these used pistons any good? [Re: B1MAXX] #2920846 05/10/21 05:24 PM 05/10/21 05:24 PM
Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma M MrMayhem OP member
MrMayhem OP member M Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma	If the pistons are usable for a hot street motor, what would be the best method to remove the corrosion or oxidation?

Re: Are these used pistons any good? [Re: MrMayhem] #2920853 05/10/21 05:30 PM 05/10/21 05:30 PM
Joined: Aug 2019 Posts: 9,495 Super Spudsville Mr PotatoHead Half Baked
Mr PotatoHead Half Baked Joined: Aug 2019 Posts: 9,495 Super Spudsville	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!

Re: Are these used pistons any good? [Re: Mr PotatoHead] #2920859 05/10/21 05:52 PM 05/10/21 05:52 PM
Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma M MrMayhem OP member
MrMayhem OP member M Joined: Jun 2018 Posts: 114 Oklahoma City, Oklahoma	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. Originally Posted by Mr PotatoHead 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?

Re: Are these used pistons any good? [Re: MrMayhem] #2920863 05/10/21 06:02 PM 05/10/21 06:02 PM
Joined: Aug 2019 Posts: 9,495 Super Spudsville Mr PotatoHead Half Baked
Mr PotatoHead Half Baked Joined: Aug 2019 Posts: 9,495 Super Spudsville	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!

Re: Are these used pistons any good? [Re: Mr PotatoHead] #2920884 05/10/21 07:02 PM 05/10/21 07:02 PM
Joined: Jul 2008 Posts: 30,434 Florida STAYcation MasterDeBaTeR ! The village idiot's idiot
MasterDeBaTeR ! The village idiot's idiot Joined: Jul 2008 Posts: 30,434 Florida STAYcation	Ring groove clearance... measure ..... whatchoogot ?

Re: Are these used pistons any good? [Re: MrMayhem] #2920949 05/10/21 09:45 PM 05/10/21 09:45 PM
Joined: May 2005 Posts: 1,992 Apollo, PA. B1MAXX top fuel
B1MAXX top fuel Joined: May 2005 Posts: 1,992 Apollo, PA.	Originally Posted by MrMayhem 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

Re: Are these used pistons any good? [Re: MrMayhem] #2920961 05/10/21 10:03 PM 05/10/21 10:03 PM
Joined: Aug 2003 Posts: 43,207 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,207 Bend,OR USA	Try contacting Chief Aircraft supplies in Oregon for some aluminum corrosion eater, if they are not open try another good aircraft repair parts store on the internet. Aircraft Spruce in SO CA is another good one I owned and flew a small aircraft for 15 yrs in SO CA and used both of those companies for parts, Chief was cheaper due to Oregon not having any state sales tax even with the shipping I wish I could remember the brand name I used but the label fell off and I can't remember what I had for dinner Saturday night now Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1