Motor rebuild ? different pistons????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Southedisto · 07-04-2007, 11:59 PM

So, I saw a motor that had been 1/2 rebuilt, they only replaced 1,3,5,7 pistons. I don't get it, I would think it would cause uneven wear or something. Anyone have anything on this?

krue · 07-05-2007, 02:19 AM

In for a penny....I'd replace all of them if it were me.

CrashEd · 07-05-2007, 02:25 AM

Thats like boring one hole. But thay do it all the time
Ed

krue · 07-05-2007, 04:49 AM

I could see if it was only one piston needed replacing, maybe.

71tahoe · 07-05-2007, 07:06 AM

Could have hydrolocked one side due to coolant in the cylinders and replaced pistons and rods.

cdowns · 07-05-2007, 07:15 AM

i got a rebuilt from advanced auto parts that was like that some used some new pistons valves etc it was a real mix and match affair as far as parts went it did run good but i had no real confidence in the thing

Southedisto · 07-05-2007, 10:29 AM

Quote:

Originally Posted by cdowns

i got a rebuilt from advanced auto parts that was like that some used some new pistons valves etc it was a real mix and match affair as far as parts went it did run good but i had no real confidence in the thing

That is why I am hesitant to get it. They are all STD pistons, so none are bored. I am going to pull the oil pan next time I get a chance and check the bottom end out.

**special-K** · 07-05-2007, 08:22 PM

It`s not a rebuild unless all pistons are new.It`s an overhaul.If one needs replaced,they all get replaced when I do a motor.My`72 Sierra got all new pistons and valves.

wibilly · 07-06-2007, 12:07 AM

it wasn't somones cheater dirt track moter was it?

GREASEMONKEY72 · 07-06-2007, 12:10 AM

Quote:

Originally Posted by wibilly

it wasn't somones cheater dirt track moter was it?

it wouldnt be standard bore if it was, trust me

Southedisto · 07-06-2007, 03:48 PM

Quote:

Originally Posted by wibilly

it wasn't somones cheater dirt track moter was it?

What does the different pistons have to do with that?

07-04-2007, 11:59 PM	#1
Southedisto River life...... Join Date: Oct 2005 Location: Soldotna AK Posts: 1,078	Motor rebuild ? different pistons????? So, I saw a motor that had been 1/2 rebuilt, they only replaced 1,3,5,7 pistons. I don't get it, I would think it would cause uneven wear or something. Anyone have anything on this? __________________ I like wheelin in Dixie!

07-05-2007, 02:19 AM	#2
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Motor rebuild ? different pistons????? In for a penny....I'd replace all of them if it were me. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

07-05-2007, 02:25 AM	#3
CrashEd 72 chevy Join Date: Jan 2007 Location: Central Il Posts: 725	Re: Motor rebuild ? different pistons????? Thats like boring one hole. But thay do it all the time Ed

07-05-2007, 04:49 AM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Motor rebuild ? different pistons????? I could see if it was only one piston needed replacing, maybe. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

07-05-2007, 07:06 AM	#5
71tahoe Registered User Join Date: May 2006 Location: Jonesboro, AR Posts: 916	Re: Motor rebuild ? different pistons????? Could have hydrolocked one side due to coolant in the cylinders and replaced pistons and rods.

07-05-2007, 07:15 AM	#6
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Motor rebuild ? different pistons????? i got a rebuilt from advanced auto parts that was like that some used some new pistons valves etc it was a real mix and match affair as far as parts went it did run good but i had no real confidence in the thing __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

07-05-2007, 08:22 PM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Motor rebuild ? different pistons????? It`s not a rebuild unless all pistons are new.It`s an overhaul.If one needs replaced,they all get replaced when I do a motor.My`72 Sierra got all new pistons and valves. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

07-06-2007, 12:07 AM	#9
wibilly Senior Member Join Date: Nov 2005 Location: northwestern wi Posts: 2,111	Re: Motor rebuild ? different pistons????? it wasn't somones cheater dirt track moter was it? __________________ common sense isn't so common anymore

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