Am I screwed? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Leks · 04-30-2006, 07:46 PM

The 327 I was planning on using has bad heads (not rebuildable). Do I have to go and try and hunt them down or can I use another set of heads like off of a 350 or even 305?

I was told by gramps I could use any other head but sometimes I think the Milwaukees Best gets to him!

I figured I'd go for some profesional advice befor I sink the money into this rebuild kit I planned on ordering!

speed · 04-30-2006, 07:53 PM

You can use a set for 305, unless you want to loose some compression. Any stock type SBC head will physically bolt on.
The other option would be to use a set of higher c/r pistons with a pair of 350-400 heads.

Karl Hoh · 04-30-2006, 11:41 PM

Quote:

Originally Posted by speed

You can use a set for 305, unless you want to loose some compression. Any stock type SBC head will physically bolt on.
The other option would be to use a set of higher c/r pistons with a pair of 350-400 heads.

You can use 305 heads but you will lose alot of compression. 305 heads are 76cc, 327 heads are 64cc, if you can't find small chamber heads to replace the unrebuildable ones, you have to do the math & install domed pistons to compensate for the larger combustion chambers.

Leks · 05-01-2006, 08:29 AM

is this true even when going oversize on the bore?

or what about jetting the carb a little different!

This sounds like its going to be a nightmare, I may just try and find a 350!

86 GMG · 05-01-2006, 08:41 AM

call some local machine shops they usually have heads laying around ready to install. here in tulsa there is one called tuter (sp?) it is around downtown i think third street talk to terry he is an aquantince and ownes the place.

Leks · 05-01-2006, 09:40 AM

Quote:

Originally Posted by 86 GMG

call some local machine shops they usually have heads laying around ready to install. here in tulsa there is one called tuter (sp?) it is around downtown i think third street talk to terry he is an aquantince and ownes the place.

Ya I know who you are talking about! I use Lucidos, and a guy here at works wife works for Moritz. The problem is these guys want an arm and a leg for heads let alone a 327 head!

86 GMG · 05-01-2006, 09:49 AM

yeah agreed and lucito is freakin awsome but he dont have much of a surplus that shop of his is the first and only machine shop that i would eat of the floor

im not familiar with 327's other than most people i hear talk about them run 194 heads not sure what the deminsions are as far as valve sizes i can make some phone calles and see what i can find through my conections around here ill keep you posted 86gmg

Leks · 05-01-2006, 10:11 AM

Quote:

Originally Posted by 86 GMG

yeah agreed and lucito is freakin awsome but he dont have much of a surplus that shop of his is the first and only machine shop that i would eat of the floor

im not familiar with 327's other than most people i hear talk about them run 194 heads not sure what the deminsions are as far as valve sizes i can make some phone calles and see what i can find through my conections around here ill keep you posted 86gmg

If you dont mind!

I know thats what Im doing on my lunch break today!

SCOTI · 05-01-2006, 12:47 PM

Some Vortec heads should work well w/a 327 sbc. Have you considered them?

**Captkaos** · 05-01-2006, 12:50 PM

Ditto on what Scoti says. I would go for a decent set of Vortec heads.

86 GMG · 05-01-2006, 01:59 PM

leks tuder machine has 327 heads ready to bolt on except for the springs and
rockers 300.00 with a core since yours are bad 400.00. i may be able to get a better deal if we were to go together maybe like stasted above an aquantence buddy deal if were lucky. so far thats the best i can come up with. personally buying a set from some one and then rebuilding them would be about the same if not more. i will pm you my cell number to hook up if you want

SSC's76 · 05-01-2006, 02:39 PM

Theres nothing special about the 327 heads even if they were double hump heads the only advantage they would have over a set of 416 305 heads would be the valve size and the 305 heads have smaller combustion chambers and actually larger ports where it matters.

Get any set of SBC heads and they will work fine.

speed · 05-01-2006, 06:18 PM

Quote:

Originally Posted by Karl Hoh

You can use 305 heads but you will lose alot of compression. 305 heads are 76cc, 327 heads are 64cc, if you can't find small chamber heads to replace the unrebuildable ones, you have to do the math & install domed pistons to compensate for the larger combustion chambers.

350 = 76CC
327 = 64CC
305 & 267 = 58CC

Leks · 05-02-2006, 08:46 AM

Quote:

Originally Posted by speed

350 = 76CC
327 = 64CC
305 & 267 = 58CC

I found a set of 350 heads Im guessing they will work?

82c10 · 05-02-2006, 12:07 PM

Quote:

Originally Posted by Leks

I found a set of 350 heads Im guessing they will work?

yes, any set of sbc heads will work, just won't run as good as if you put the smaller combustion chambered heads on

04-30-2006, 07:46 PM	#1
Leks Registered User Join Date: Apr 2006 Location: Throwin sparks down I -44 Posts: 49	Am I screwed? The 327 I was planning on using has bad heads (not rebuildable). Do I have to go and try and hunt them down or can I use another set of heads like off of a 350 or even 305? I was told by gramps I could use any other head but sometimes I think the Milwaukees Best gets to him! I figured I'd go for some profesional advice befor I sink the money into this rebuild kit I planned on ordering! __________________ http://www.adicustoms.com/

04-30-2006, 07:53 PM	#2
speed Junior Member Join Date: Jan 2006 Location: Northern Iowa Posts: 258	Re: Am I screwed? You can use a set for 305, unless you want to loose some compression. Any stock type SBC head will physically bolt on. The other option would be to use a set of higher c/r pistons with a pair of 350-400 heads. __________________ Jeff J ---------- 86 El Camino 81 Monte Carlo 81 Regal 04 Colorado

05-01-2006, 08:29 AM	#4
Leks Registered User Join Date: Apr 2006 Location: Throwin sparks down I -44 Posts: 49	Re: Am I screwed? is this true even when going oversize on the bore? or what about jetting the carb a little different! This sounds like its going to be a nightmare, I may just try and find a 350! __________________ http://www.adicustoms.com/

05-01-2006, 08:41 AM	#5
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Re: Am I screwed? call some local machine shops they usually have heads laying around ready to install. here in tulsa there is one called tuter (sp?) it is around downtown i think third street talk to terry he is an aquantince and ownes the place. __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

05-01-2006, 09:49 AM	#7
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Re: Am I screwed? yeah agreed and lucito is freakin awsome but he dont have much of a surplus that shop of his is the first and only machine shop that i would eat of the floor im not familiar with 327's other than most people i hear talk about them run 194 heads not sure what the deminsions are as far as valve sizes i can make some phone calles and see what i can find through my conections around here ill keep you posted 86gmg __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

05-01-2006, 12:47 PM	#9
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,941	Re: Am I screwed? Some Vortec heads should work well w/a 327 sbc. Have you considered them? __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

05-01-2006, 12:50 PM	#10
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: Am I screwed? Ditto on what Scoti says. I would go for a decent set of Vortec heads. __________________ 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

05-01-2006, 01:59 PM	#11
86 GMG Registered User Join Date: Apr 2005 Location: Tulsa Oklahoma Posts: 943	Re: Am I screwed? leks tuder machine has 327 heads ready to bolt on except for the springs and rockers 300.00 with a core since yours are bad 400.00. i may be able to get a better deal if we were to go together maybe like stasted above an aquantence buddy deal if were lucky. so far thats the best i can come up with. personally buying a set from some one and then rebuilding them would be about the same if not more. i will pm you my cell number to hook up if you want __________________ square body trucks an addiction or an investment either way they consume all my extra time and money

05-01-2006, 02:39 PM	#12
SSC's76 No No Join Date: Jun 2005 Location: Pueblo Colorado Posts: 1,781	Re: Am I screwed? Theres nothing special about the 327 heads even if they were double hump heads the only advantage they would have over a set of 416 305 heads would be the valve size and the 305 heads have smaller combustion chambers and actually larger ports where it matters. Get any set of SBC heads and they will work fine. __________________ 1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler



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