Chevy Head? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fair1138 · 06-14-2010, 12:50 PM

I just pulled my valve covers, and the heads were cast with 8994028. Can someone tell me what these are? I cant find any info on them.Thanks

fishingjred73 · 06-14-2010, 01:29 PM

Nothing here. TTT for ya

**GruntMoanCough** · 06-14-2010, 03:22 PM

Not suggesting that your eyesight is as bad as mine

but, all I can come up with is:
3994026 - '71 454, closed chamber, 425 HP, LS-6, 118 cc.

fair1138 · 06-15-2010, 12:20 AM

I went back and check the heads again. you were right with the numbers 3994026. Are these heads any good?

**GruntMoanCough** · 06-15-2010, 12:36 PM

I dunno, more of a SBC guy. I suppose it depends on the work that may have been done to them, don't think you could beat aftermarket heads. Maybe the BBC guys can help you out more.

bruceman1968 · 06-15-2010, 12:47 PM

hey fair. Your sitting on a gold mine there. I suggest you put on a adult diaper and click on this link.http://shop.ebay.com/?_from=R40&_trk...All-Categories When you see how much thoes heads are worth, your gonna mess your pants.

fair1138 · 06-15-2010, 05:14 PM

wow...thanks for all the help

'72customdeluxe · 06-15-2010, 05:34 PM

They should perform great, but for their value you could get some nice modern iron castings. Should have better port and chamber design

**68 Stepside** · 06-15-2010, 06:43 PM

You know, it'd probably be a good idea to run the numbers on the front of the engine. You could potentially have a complete LS6 engine.

fair1138 · 06-16-2010, 06:38 PM

nope...i checked. took alot work since the engine was in the truck
but i did come up with 3999289, date code was F1B 73(not sure if its a B), the front stamp was hard to read, but it looks like CE368045. Not sure about the 6.

bruceman1968 · 06-16-2010, 06:58 PM

Thats still a nice find on the heads. So you got a 454 with hi po ls6 heads. That truck must scream. How bout some pics when you can, and welcome to the board...

fair1138 · 06-16-2010, 07:23 PM

Juat changed out the headers for the ceramic ones, and installed the March pulley's. Also just built the tonneau cover. Now I need to find some time and clean her up. I think my next plan will be to install a stereo system.

**68 Stepside** · 06-16-2010, 08:07 PM

Oh wow, those rear tires fit the wheel wells great. What size are they? And are you running a drop? Sweet looking truck.

fair1138 · 06-16-2010, 08:36 PM

the tires are 29x15.50-15 in the rear. It does appear to have a drop. I didnt build the truck. The guy who built had a great idea, but took some short cuts, so im trying to fix alot of stuff and put my own spin on it.

115-K10 · 07-03-2010, 10:37 PM

Those heads are very simular to the 990 heads. They are open chamber and were to be used in the '71 ls6 that was to go in the chevelle and Monte but was canceled. Some believe they made it to production but I doubt it. I am actually looking for a pair to put on my '71 ss454 Monte that I am converting to an LS6. Pulling the original # matching LS5 out and putting it under the bench to protect the investment.

115-K10 · 07-03-2010, 10:47 PM

One other thing the CE stamped in the pad on the block means it was a counter exchange and typically indicated it went out as a warrantee replacement. Hope this helps.

06-14-2010, 12:50 PM	#1
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Chevy Head? I just pulled my valve covers, and the heads were cast with 8994028. Can someone tell me what these are? I cant find any info on them.Thanks

06-14-2010, 01:29 PM	#2
fishingjred73 Registered User Join Date: May 2007 Location: LOUISIANA Posts: 811	Re: Chevy Head? Nothing here. TTT for ya __________________ James '68 Stepside (ground up in progress) My 68 build thread http://louisianaclassictruckclub.fre...side-t956.html '81 SWB "Pap paw" (Driver) The 81 build thread http://louisianaclassictruckclub.fre...-swb-t960.html Member of www.louisianaclassictruckclub.com https://www.facebook.com/groups/296290610747732/

06-14-2010, 03:22 PM	#3
GruntMoanCough Registered User Join Date: May 2009 Location: Pemberton, BC Posts: 1,075	Re: Chevy Head? Not suggesting that your eyesight is as bad as mine but, all I can come up with is: 3994026 - '71 454, closed chamber, 425 HP, LS-6, 118 cc. __________________ My goal in life is to be as good a person as my dog already thinks I am - Unknown Last edited by GruntMoanCough; 06-14-2010 at 03:25 PM.

06-15-2010, 12:20 AM	#4
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: Chevy Head? I went back and check the heads again. you were right with the numbers 3994026. Are these heads any good?

06-15-2010, 12:36 PM	#5
GruntMoanCough Registered User Join Date: May 2009 Location: Pemberton, BC Posts: 1,075	Re: Chevy Head? I dunno, more of a SBC guy. I suppose it depends on the work that may have been done to them, don't think you could beat aftermarket heads. Maybe the BBC guys can help you out more. __________________ My goal in life is to be as good a person as my dog already thinks I am - Unknown

06-15-2010, 12:47 PM	#6
bruceman1968 Registered User Join Date: Oct 2009 Location: Tampa Bay Posts: 1,549	Re: Chevy Head? hey fair. Your sitting on a gold mine there. I suggest you put on a adult diaper and click on this link.http://shop.ebay.com/?_from=R40&_trk...All-Categories When you see how much thoes heads are worth, your gonna mess your pants. __________________ CHEVY/GMC VIN DECODERS Last edited by bruceman1968; 06-15-2010 at 01:05 PM.

06-15-2010, 05:14 PM	#7
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: Chevy Head? wow...thanks for all the help

06-15-2010, 05:34 PM	#8
'72customdeluxe Registered User Join Date: Jan 2008 Location: Tejas Posts: 691	Re: Chevy Head? They should perform great, but for their value you could get some nice modern iron castings. Should have better port and chamber design __________________ '72 cheyenne super step, '05 long bed gmc

06-15-2010, 06:43 PM	#9
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	Re: Chevy Head? You know, it'd probably be a good idea to run the numbers on the front of the engine. You could potentially have a complete LS6 engine. __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

06-16-2010, 06:38 PM	#10
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: Chevy Head? nope...i checked. took alot work since the engine was in the truck but i did come up with 3999289, date code was F1B 73(not sure if its a B), the front stamp was hard to read, but it looks like CE368045. Not sure about the 6.

06-16-2010, 06:58 PM	#11
bruceman1968 Registered User Join Date: Oct 2009 Location: Tampa Bay Posts: 1,549	Re: Chevy Head? Thats still a nice find on the heads. So you got a 454 with hi po ls6 heads. That truck must scream. How bout some pics when you can, and welcome to the board... __________________ CHEVY/GMC VIN DECODERS

06-16-2010, 07:23 PM	#12
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: Chevy Head? Juat changed out the headers for the ceramic ones, and installed the March pulley's. Also just built the tonneau cover. Now I need to find some time and clean her up. I think my next plan will be to install a stereo system. Attached Images

06-16-2010, 08:07 PM	#13
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	Re: Chevy Head? Oh wow, those rear tires fit the wheel wells great. What size are they? And are you running a drop? Sweet looking truck. __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

06-16-2010, 08:36 PM	#14
fair1138 Registered User Join Date: Oct 2006 Location: Rochester, NY Posts: 41	Re: Chevy Head? the tires are 29x15.50-15 in the rear. It does appear to have a drop. I didnt build the truck. The guy who built had a great idea, but took some short cuts, so im trying to fix alot of stuff and put my own spin on it.

07-03-2010, 10:37 PM	#15
115-K10 Registered User Join Date: Feb 2009 Location: Albany, NY Posts: 144	Re: Chevy Head? Those heads are very simular to the 990 heads. They are open chamber and were to be used in the '71 ls6 that was to go in the chevelle and Monte but was canceled. Some believe they made it to production but I doubt it. I am actually looking for a pair to put on my '71 ss454 Monte that I am converting to an LS6. Pulling the original # matching LS5 out and putting it under the bench to protect the investment. __________________ The chum Bucket - SWB K10 Restoration - http://67-72chevytrucks.com/vboard/s...d.php?t=329775 1971 SS454 Monte http://www.hemmings.com/mus/stories/...feature14.html 1970 - Monte Carlo Convertible, LS6, L89, M22 Build http://www.firstgenmc.com/ubbthreads...=360236&page=1 1970-SS454 Tripe Black - Barn Find http://www.firstgenerationmontecarlo...=421201&page=1



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07-03-2010, 10:47 PM	#16
115-K10 Registered User Join Date: Feb 2009 Location: Albany, NY Posts: 144	Re: Chevy Head? One other thing the CE stamped in the pad on the block means it was a counter exchange and typically indicated it went out as a warrantee replacement. Hope this helps. __________________ The chum Bucket - SWB K10 Restoration - http://67-72chevytrucks.com/vboard/s...d.php?t=329775 1971 SS454 Monte http://www.hemmings.com/mus/stories/...feature14.html 1970 - Monte Carlo Convertible, LS6, L89, M22 Build http://www.firstgenmc.com/ubbthreads...=360236&page=1 1970-SS454 Tripe Black - Barn Find http://www.firstgenerationmontecarlo...=421201&page=1

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