The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-16-2009, 10:47 PM   #1
gmcdude
Registered User
 
gmcdude's Avatar
 
Join Date: Jul 2009
Location: Abingdon, Virginia
Posts: 300
The 327 ?

In this new truck, it's got a 327, mild cam, holly carb. I've had a 350 in the past. Will i like the 327 ? Or will I be able to tell the difference.
gmcdude is offline   Reply With Quote
Old 08-16-2009, 10:54 PM   #2
Jacfourteen
Big Red - Now its a SWB!
 
Jacfourteen's Avatar
 
Join Date: Jun 2009
Location: Oroville, Ca
Posts: 1,624
Re: The 327 ?

I've heard the 327's will rev higher/smoother.
__________________
68 3/4 ton (Project)-350 Small Block, .030 over, 10:1 comp, 3998993 heads, C3BX edelbrock intake, comp cams XE268, Holley 670 SA, long tube headers, dual flow 40's, E-fan, Alum rad, currently under the knife getting shortened and bagged build thread
41 3/4 ton (wife's)-flatbed, fully restored to original
01 Tahoe LT 4WD (my daily driver)-Magnaflow Muffler, Rollin on 22's
02 Ford Mustang Convertable (Wife's Car)-Flowmaster 50, Clear corners, Intake, sittin on 18's
Jacfourteen is offline   Reply With Quote
Old 08-16-2009, 11:01 PM   #3
redbaron69
Registered User
 
redbaron69's Avatar
 
Join Date: Jan 2009
Location: marion nc
Posts: 588
Re: The 327 ?

one of the best if not the best SBC ever built, you should be happy
__________________
69 short fleet 350/350 "under construction"
70 short step 307/3 speed
redbaron69 is offline   Reply With Quote
Old 08-16-2009, 11:30 PM   #4
LockDoc
The Older Generation


 
LockDoc's Avatar
 
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,466
Re: The 327 ?

-
I have two 327's and I am happy with the performance of both of them.

LockDoc
__________________
Leon

Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles

(My Dually Pickup Project Thread)

http://67-72chevytrucks.com/vboard/s...d.php?t=829820

-
LockDoc is offline   Reply With Quote
Old 08-16-2009, 11:35 PM   #5
BAGNDRAGIT
Just Not Low Enough!
 
BAGNDRAGIT's Avatar
 
Join Date: Mar 2009
Location: Phoenix, AZ
Posts: 525
Re: The 327 ?

i love my 327. and yes, they do rev a little higher, you wont be dissappointed!
__________________
NEED ELECTRICAL HELP? ASK ME!
67-72 Full Wiring Diagrams
Lots Of Info, TAKE A LOOK
1967 Chevy C-10 Shortbox Bagged 327 4spd
Previous:
1971 Chevy C-10 Short Sep I6 Auto (Traded)
1973 Chevy C-20 *THE REDNECK BATTLE TRUCK*
2001 Chevy Silverado 2Dr 5.3L Shortbox. R.I.P.
1969 Volkswagen Bug
This is my first meeting, I have a horsepower problem.
BAGNDRAGIT is offline   Reply With Quote
Old 08-16-2009, 11:57 PM   #6
Jbham88
Registered User
 
Jbham88's Avatar
 
Join Date: Jun 2009
Location: Hattiesburg Mississippi
Posts: 64
Re: The 327 ?

I just picked mine up friday, Im curious myself to see if im going to like it or not any suggestions on headers? im going to have a 3in drop in the front
__________________
1986 GMC 4x4
Jbham88 is offline   Reply With Quote
Old 08-17-2009, 04:22 AM   #7
GR8-68
Senior Member
 
GR8-68's Avatar
 
Join Date: Jun 2009
Location: Belews Creek , NC
Posts: 4,220
Re: The 327 ?

bought one off craigslist yesterday, have owned three of them in the past and love them you should be pleased with its performance
GR8-68 is offline   Reply With Quote
Old 08-17-2009, 05:05 AM   #8
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
Re: The 327 ?

I`m building my`67 swb with what I have on a low budget.But,I found a 327 and just had to have it.I already had a 350 from a`71.They are as great a motor as the 350 with added vintage cool factor.They have different dynamics and yes they like to scream,without giving up bottom end.
__________________
"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 ~
special-K is offline   Reply With Quote
Old 08-17-2009, 06:46 AM   #9
vectorit
What?
 
vectorit's Avatar
 
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
Re: The 327 ?

I much prefer the 327 over the 350.

You will be pleased to run the 327.
__________________
Chris
1968 K20 Suburban
1972 K10 LWB PU
vectorit is offline   Reply With Quote
Old 08-17-2009, 07:09 AM   #10
Shaky
Six in a row makes it go...
 
Shaky's Avatar
 
Join Date: Mar 2009
Location: Vacationland: Maine
Posts: 1,346
Re: The 327 ?

350: 4.00 bore x 3.48 stroke

327: 4.00 bore x 3.25 stroke

The 327 likes to spin more than the 350. My brother had a '68 C10 with a factory 327. After a rebuild/hop-up that thing was a blast. At 7000 rpm it made you grit your teeth - but it never came apart.

I wish I had pictures of the looks on people's faces when this beat-up old truck came screaming past them with that hairy-cammed 327.
__________________
67 C20 long step resto: http://67-72chevytrucks.com/vboard/s...d.php?t=342086
66 C10 long step build: http://67-72chevytrucks.com/vboard/s...=1#post3814790
CT to Alaska in a 67 C10: http://67-72chevytrucks.com/vboard/s...d.php?t=399224
“The height of sophistication is simplicity." - Clare Boothe Luce
Shaky is offline   Reply With Quote
Old 08-17-2009, 09:08 AM   #11
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,619
Re: The 327 ?

IIRC, Chevy changed from 327 to 350 to gain back a bit of torque that was lost when they first began choking down engines with the earliest forms of pollution control. I've had a few 327s in different states of tune. It's a really sweet engine!
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay
Stocker is offline   Reply With Quote
Old 08-17-2009, 09:12 AM   #12
big_al_71
Registered User
 
big_al_71's Avatar
 
Join Date: Jun 2008
Location: South Florida
Posts: 11,375
Re: The 327 ?

Had a 327 in my 65 elky and it was a screamer....if set up "CORRECT" you will be happy with it..
__________________
Get your facts first, and then you can distort them as much as you please!!!!!.



Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild
big_al_71 is offline   Reply With Quote
Old 08-17-2009, 09:23 PM   #13
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
Re: The 327 ?

Yeah,all cubes went bigger to compensate for choking motors down with superficial emissions equipment.Then,they just sucked more gas which meant more emissions.
__________________
"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 ~
special-K is offline   Reply With Quote
Old 08-17-2009, 10:09 PM   #14
Ben IV
Registered User
 
Join Date: Dec 2006
Location: Glenpool OK
Posts: 255
Re: The 327 ?

Also ive been told many times that 327 blocks had a higher nickel content that and the cylinder walls are thicker. The early ones had a small journal crank and the later ones have a large journal same as a 350.
__________________
70 GMC custom short bed conversion
69 GMC panel truck
Ben IV is offline   Reply With Quote
Old 08-17-2009, 10:37 PM   #15
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
Re: The 327 ?

The bore is the same as 350s,so the cylinder walls are the same thickness.The large journal 327 I have from a`68 truck is the same block as the SS350 and Z/28 Camaros.
__________________
"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 ~
special-K is offline   Reply With Quote
Old 08-17-2009, 10:48 PM   #16
Dingfodgy
Lemme show you something!!
 
Dingfodgy's Avatar
 
Join Date: Apr 2007
Location: St.Helens, OR.
Posts: 876
Re: The 327 ?

In the realm of vintage Detroit power the only small block I would prefer over the 327 would be a DZ302.....but given the fact that I'll $h!t purple twinkies before I score one of those- I'll stick to making fond memories with the 327 in my SWB project.
__________________
'67 CST-10 LWB ("Crusty") SOLD
'67 GMC SWB ("Murdock")
2000 K1500 Suburban ("Betty")
'95 BMW 325i ("Joy")
Dingfodgy is offline   Reply With Quote
Old 08-18-2009, 12:04 AM   #17
ERASER5
Registered User
 
ERASER5's Avatar
 
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
Re: The 327 ?

Quote:
Originally Posted by Dingfodgy View Post
I'll $h!t purple twinkies before ...
__________________
'70 GMC C1500 LWB
Power disc brakes. WooHoo!
Posi 6 Lug Dana 60
ERASER5 is offline   Reply With Quote
Old 08-18-2009, 12:22 AM   #18
BAGNDRAGIT
Just Not Low Enough!
 
BAGNDRAGIT's Avatar
 
Join Date: Mar 2009
Location: Phoenix, AZ
Posts: 525
Re: The 327 ?

partially related hi-jack....

did the large journal crank come with a center bolt for the harmonic balancer??

and if so are they interchangeable? or do you have to line bore the crank journals?

or should i just go and get my small journal drilled?????

i want to keep my 327, i just would like a little more compatibility when it comes to balancers..
__________________
NEED ELECTRICAL HELP? ASK ME!
67-72 Full Wiring Diagrams
Lots Of Info, TAKE A LOOK
1967 Chevy C-10 Shortbox Bagged 327 4spd
Previous:
1971 Chevy C-10 Short Sep I6 Auto (Traded)
1973 Chevy C-20 *THE REDNECK BATTLE TRUCK*
2001 Chevy Silverado 2Dr 5.3L Shortbox. R.I.P.
1969 Volkswagen Bug
This is my first meeting, I have a horsepower problem.
BAGNDRAGIT is offline   Reply With Quote
Old 08-18-2009, 10:13 AM   #19
turp mcspray
Registered User
 
turp mcspray's Avatar
 
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
Re: The 327 ?

Not to knock the 327, but having a shorter stroke will move the powerband UP, which unfortunately means LESS torque on the very bottom end. All things being equall, a longer stroke equalls more low end torque. Once again, I'm not knocking the 327. I have run both in the same vehicle, and was deffinitely able to tell a difference in low end torque.
__________________
Turp Mcspray
New life for an old 2wd, farm blazer
http://67-72chevytrucks.com/vboard/s...d.php?t=505987
My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299
turp mcspray is offline   Reply With Quote
Old 08-18-2009, 05:29 PM   #20
AJLChase
Registered User
 
AJLChase's Avatar
 
Join Date: May 2009
Location: Lincoln, NE
Posts: 322
Re: The 327 ?

Are you all in favor of the 327 because of a) reliability b)functioning c)performance? As from what I hear there is no real definitive reason as to why the 327 is good, other then simply "because I like it, and so should you" Not trying to start a war, I too have a 327 and am curious as to what makes it so favored by all of you. I know pretty much nothing about engines, so bare with me lol
AJLChase is offline   Reply With Quote
Old 08-18-2009, 05:33 PM   #21
vectorit
What?
 
vectorit's Avatar
 
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
Re: The 327 ?

The shorter stroke.
__________________
Chris
1968 K20 Suburban
1972 K10 LWB PU
vectorit is offline   Reply With Quote
Old 08-18-2009, 09:02 PM   #22
turp mcspray
Registered User
 
turp mcspray's Avatar
 
Join Date: May 2007
Location: Rapid City South Dakota
Posts: 2,359
Re: The 327 ?

If you want an engine to turn high rpms, the shorter stroke has a better "rod length to stroke ratio". The 302...even better. So if you want to turn 7000 rpm for long lengths of time, a short stroke is what you want. If you want to maximize torque at a low rpm (which is very desireable on the street) you want as much stroke as possible. (but will have to trade off high rpm horsepower) It all depends on WHERE you want your engine to make power, and WHAT your intended usage will be. We all would like an engine that spins to 7500 and makes tire shreading torque at 1500. (If anyone figures out how to do this PLEASE let me know! LOL!) Everything is a compromise so to speak.
__________________
Turp Mcspray
New life for an old 2wd, farm blazer
http://67-72chevytrucks.com/vboard/s...d.php?t=505987
My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299
turp mcspray is offline   Reply With Quote
Old 08-18-2009, 10:06 PM   #23
Stocker
20' Daredevil (Ret)
 
Stocker's Avatar
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,619
Re: The 327 ?

Chevy made 327s in a wide variety of configurations, and they could be as different as chalk & cheese. They were the performance engine of choice when I was growing up, and I've owned a couple nice ones, so they have always been just a bit special to me. Having said that, they may be unable to hold a candle to today's crop of SBCs, whether factory or modified.
__________________
- Mike -

1972 K20 LWB 350/350/205

RIP El Jay

Last edited by Stocker; 08-18-2009 at 10:07 PM.
Stocker is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 02:24 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com