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04-01-2017, 10:25 PM
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#1 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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Any info on 883 heads?
picked up a set of ported 883 heads, have screw in rocker studs. paid near nothing for them but im curious.. i cant find anything about them online! anyone know if they are decent heads? fixing up my 72'c20 daily driver.. tired of the fouling plugs, burnin oil
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04-01-2017, 10:28 PM
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#2 |
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Registered User
Join Date: Jan 2003
Location: Safford,AZ
Posts: 3,613
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Re: Any info on 883 heads?
just like 882, 993 smogger heads
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04-01-2017, 10:41 PM
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#3 |
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Msgt USAF Ret
  
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,703
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Re: Any info on 883 heads?
Well they used them on most of the c3 corvettes. Mine has a set and it runs fairly well. they have a reputation of cracking around the exhaust port but if you don't get the engine too hot you should be ok. Did they magnaflux the heads and if they are ported they flow pretty well.
here's plenty more. https://www.google.com/search?domain...D%3A1%3B&hl=en
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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04-01-2017, 11:12 PM
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#4 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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Re: Any info on 883 heads?
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04-01-2017, 11:19 PM
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#5 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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Re: Any info on 883 heads?
im pretty sure there 883's i could be wrong. havent got them checked out yet, just pulled the valve and polished them up.. valve guides are nice and tight, one valve steam seal was missing.. but yeah, they are definetly ported.. i see the scibe marks on them and they did a damn good job, nice and smooth. but cool.. anything beats the 624 heads i got in there now. im cleanin them up and going to get them checked out. thank
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04-01-2017, 11:43 PM
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#6 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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993 or 883?
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04-01-2017, 11:52 PM
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#7 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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number on the underside of the exhaust port.. 883? thanks 4 your help
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04-02-2017, 12:48 AM
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#8 |
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Registered User
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: Any info on 883 heads?
HAVE them magnifluxed for cracks before installing them , there thin castings and bad to crack
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I BELIEVE IN JOHN 3:16 |
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04-02-2017, 09:08 AM
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#9 |
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Registered User
Join Date: Jul 2015
Location: Springfield MO
Posts: 27
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Re: Any info on 883 heads?
They are "993" castings. 3998993 is the full casting number. These are the castings that would have come on a '72 350 engine and came on the truck engines. If you check you will see they have May 18th 72 date code on one, and it looks like March 21st 72 on the other. They will work fine for what you are doing.
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63 GMC long stepside 66 Chevy short fleetside 71 Chevy Longhorn 68 Chevelle Nomad wagon |
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04-02-2017, 09:47 AM
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#10 |
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Registered User
Join Date: Nov 2006
Location: KINGSPORT,TN.
Posts: 3,035
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Re: Any info on 883 heads?
993,x also came on carbed h/o 305,s in z28,s
__________________
I BELIEVE IN JOHN 3:16 |
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04-02-2017, 09:53 AM
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#11 |
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Registered User
Join Date: Apr 2016
Location: San Diego California
Posts: 31
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Re: Any info on 883 heads?
thanks guys.. no wonder i couldnt find anything on 883's..
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04-02-2017, 12:50 PM
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#12 | |
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Msgt USAF Ret
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,703
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Re: Any info on 883 heads?
Quote:
Sorry, I misread your original post, I thought you meant 882s.
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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