I6 Head Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hobsiscool · 11-17-2008, 02:22 PM

is this a non integral head? would it fit my 81 250? also, would an A/C unit from a 89 fit into a 81? how hard would this be?

http://cgi.ebay.com/ebaymotors/Chevy...Q5fAccessories

**Captkaos** · 11-17-2008, 05:15 PM

It is a 292 head and all of them are non-integrated.
I would have to look it up, but I don't think you would want to use the 292 on your block eventhough it would probably bolt up.

Have you called either of these places?
Birmingham Cylinder Head Exchange
4930 1st Ave N
Birmingham, AL 35222
(205) 592-0550‎

OR

Cylinder Head Service Inc
4508 Veterans Memorial Dr
Fairfield, AL 35064
205-781-9800

D13 · 11-17-2008, 08:22 PM

Yes it is a non-integrated head.
Yes it will bolt on and work fine. You will need an intake and a carb if yours is a 2 barrel.
THe only issue with this head is that it has the AIR ports that will need to be plugged.
Also watch the shipping, these are heavy!

**Captkaos** · 11-18-2008, 01:49 AM

D13, I was thinking the chambers would be to open for the 250, I don't know off hand though.

D13 · 11-18-2008, 07:17 AM

Not knowing the casting number, we'll have to guess. But, look at this..

http://www.inliners.org/tech/heads/headindex.htm

All the 6's except the 194 have one of a couple common chamber sizes, 72.4 to 74cc's. Since they are late models (AIR ports) they probably have the bigger chambers. But then again they've been planed. I dont suspect there is much appreciable difference in CR.

hobsiscool · 11-18-2008, 04:43 PM

awesome...I think i'm finally getting to understand what i'm looking for lol.

11-17-2008, 02:22 PM	#1
hobsiscool Registered User Join Date: Oct 2008 Location: Birmingham, AL Posts: 123	I6 Head Question is this a non integral head? would it fit my 81 250? also, would an A/C unit from a 89 fit into a 81? how hard would this be? http://cgi.ebay.com/ebaymotors/Chevy...Q5fAccessories

11-17-2008, 05:15 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: I6 Head Question It is a 292 head and all of them are non-integrated. I would have to look it up, but I don't think you would want to use the 292 on your block eventhough it would probably bolt up. Have you called either of these places? Birmingham Cylinder Head Exchange 4930 1st Ave N Birmingham, AL 35222 (205) 592-0550‎ OR Cylinder Head Service Inc 4508 Veterans Memorial Dr Fairfield, AL 35064 205-781-9800 __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

11-17-2008, 08:22 PM	#3
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Re: I6 Head Question Yes it is a non-integrated head. Yes it will bolt on and work fine. You will need an intake and a carb if yours is a 2 barrel. THe only issue with this head is that it has the AIR ports that will need to be plugged. Also watch the shipping, these are heavy! __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors

11-18-2008, 01:49 AM	#4
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: I6 Head Question D13, I was thinking the chambers would be to open for the 250, I don't know off hand though. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

11-18-2008, 07:17 AM	#5
D13 Registered User Join Date: Feb 2007 Location: Memphis MI Posts: 1,851	Re: I6 Head Question Not knowing the casting number, we'll have to guess. But, look at this.. http://www.inliners.org/tech/heads/headindex.htm All the 6's except the 194 have one of a couple common chamber sizes, 72.4 to 74cc's. Since they are late models (AIR ports) they probably have the bigger chambers. But then again they've been planed. I dont suspect there is much appreciable difference in CR. __________________ 1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors Last edited by D13; 11-18-2008 at 07:20 AM.

11-18-2008, 04:43 PM	#6
hobsiscool Registered User Join Date: Oct 2008 Location: Birmingham, AL Posts: 123	Re: I6 Head Question awesome...I think i'm finally getting to understand what i'm looking for lol.



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