I want to build a Chevy 327 - need tech help - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LynnJr · 04-30-2013, 01:06 PM

The 327's are internally balanced so the only question on the balancer is its outside dimension.Most were 6.75 and the large journal were 8 inch.

**LEEVON** · 04-30-2013, 02:42 PM

If you want a true 327, they seem to pop up on Craigslist pretty regular. Usually tired old original units from impalas, trucks, etc. Perfect rebuild candidates.

naphtali5725 · 04-30-2013, 02:46 PM

Quote:

Originally Posted by LEEVON

If you want a true 327, they seem to pop up on Craigslist pretty regular. Usually tired old original units from impalas, trucks, etc. Perfect rebuild candidates.

i'm keeping an eye out for them!

Gigem · 04-30-2013, 02:56 PM

was gonna say the same thing about Craigslist... there are several on the Houston CL right now... Cheap...

naphtali5725 · 04-30-2013, 03:02 PM

I'm in North Carolina near Asheville... if anyone knows of one, let me know

Tx Firefighter · 04-30-2013, 03:03 PM

Quote:

Originally Posted by naphtali5725

thnks... what about that front pulley in the pic?

Me ?

That's all stock 72 front pulleys and brackets on that engine.
Posted via Mobile Device

naphtali5725 · 04-30-2013, 03:10 PM

Yes you firefighter... so that's '72 crank accessory pulley, what is that.. a 4 groove pulley?

Quote:

Originally Posted by Tx Firefighter

Me ?

That's all stock 72 front pulleys and brackets on that engine.
Posted via Mobile Device

Tx Firefighter · 04-30-2013, 03:24 PM

In 72, the crank pulley like that was actually two pulleys bolted on top of each other. If the truck didn't get power steering and AC, it just used one pulley

Posted via Mobile Device

naphtali5725 · 04-30-2013, 03:34 PM

firefighter, what a nice motor man, nice details

INSIDIOUS '86 · 04-30-2013, 05:38 PM

Quote:

Originally Posted by naphtali5725

i'm going to research the best cams for the 327, i'm going solid lifters on it as well. may do a solid roller cam-lifters kit on it.
i'm trying to decide what heads to use on it... anyone have head opinions for the short stroke 327? maybe vortecs?

A short stroke motor can have a higher volumetric efficiency than bigger engines in most cases. The short stroke will draw a small amount of air but wants it faster. A solid cam is a good choice so look at billet cams that have the ultradyne cam profiles. A cylinder head that has a small port and high flow is great. Some vortecs will do good but afr or profilers are the best out of the box. The profilers have alot if meat for porting and are a great price as well.
Posted via Mobile Device

naphtali5725 · 04-30-2013, 05:43 PM

Thanks for the insight Insidious!

Quote:

Originally Posted by INSIDIOUS '86

A short stroke motor can have a higher volumetric efficiency than bigger engines in most cases. The short stroke will draw a small amount of air but wants it faster. A solid cam is a good choice so look at billet cams that have the ultradyne cam profiles. A cylinder head that has a small port and high flow is great. Some vortecs will do good but afr or profilers are the best out of the box. The profilers have alot if meat for porting and are a great price as well.
Posted via Mobile Device

Tx Firefighter · 04-30-2013, 06:41 PM

Quote:

Originally Posted by naphtali5725

firefighter, what a nice motor man, nice details

Thank you. I tend to get mental with OCD on stuff.
Posted via Mobile Device

LynnJr · 04-30-2013, 06:51 PM

naphtali5725 · 04-30-2013, 06:52 PM

yep, working on these today...

Quote:

Originally Posted by LynnJr

406 Q-ship · 04-30-2013, 07:03 PM

If you do the 307 crank in the 350 block it will get you a cheap 327. Just remember that the 307 crank is cast and not forged like GM used in 327, also that the 307 crank was made for the standard pedestrian market....not the high performance market. I would not play with a big cam or high RPM in a cast crank 327. GM did make a very limited number of forged 327 large journal in early 1969 (read rare and very expensive). Like said earlier, check with one of the crank manufactures to find a large journal 3.25 stroke crank and install that in a 350 block. I like the 327 too, but drive a 406 SB and you'll never look back (sorry could not resist). The balancers for the all SBC built between 1969 and 1986 (2 piece rear main) will work for a 327 fine....EXCEPT the one for a SB 400. This is also true for the flexplate/flywheel.

naphtali5725 · 04-30-2013, 07:09 PM

thanks for the added info...

Quote:

Originally Posted by 406 Q-ship

If you do the 307 crank in the 350 block it will get you a cheap 327. Just remember that the 307 crank is cast and not forged like GM used in 327, also that the 307 crank was made for the standard pedestrian market....not the high performance market. I would not play with a big cam or high RPM in a cast crank 327. GM did make a very limited number of forged 327 large journal in early 1969 (read rare and very expensive). Like said earlier, check with one of the crank manufactures to find a large journal 3.25 stroke crank and install that in a 350 block. I like the 327 too, but drive a 406 SB and you'll never look back (sorry could not resist). The balancers for the all SBC built between 1969 and 1986 (2 piece rear main) will work for a 327 fine....EXCEPT the one for a SB 400. This is also true for the flexplate/flywheel.

b454rat · 04-30-2013, 07:27 PM

I had a 327 in a 78 Malibu I had over 10 years ago. It was rebuilt, had a Holley 600 and some alum intake. Cam was either stock, or very mild. When I took the car for a test drive, it smoked the sh!t out of the one legged right rear tire. Granted it was a 14" tire, but anyways the motor did run good. I pulled the motor out after it developed a knock, put in a 400. I pulled the heads after I got the motor out, couldn't find anything about the heads, casting numbers didn't come up anywhere. I don't remember what the numbers where, but there was some on the pistons. I told them to builder, he told me they were 350 flat top pistons. After that, I looked at the pistons, and they were 1/4" below the deck!!!! How it ran I don't know, but it did run good. I for one like to be different, but it's really hard to beat a 400. The one I swapped in had well over 100k on it, and I put 60k at least on it before I had the 468 built.

And I forgot bout the small/large journal cranks, my 327 was from a 69 Camaro, IIRC the casting number was the same as a 350, or one digit off....

406 Q-ship · 04-30-2013, 07:32 PM

Quote:

Originally Posted by b454rat

I had a 327 in a 78 Malibu I had over 10 years ago. It was rebuilt, had a Holley 600 and some alum intake. Cam was either stock, or very mild. When I took the car for a test drive, it smoked the sh!t out of the one legged right rear tire. Granted it was a 14" tire, but anyways the motor did run good. I pulled the motor out after it developed a knock, put in a 400. I pulled the heads after I got the motor out, couldn't find anything about the heads, casting numbers didn't come up anywhere. I don't remember what the numbers where, but there was some on the pistons. I told them to builder, he told me they were 350 flat top pistons. After that, I looked at the pistons, and they were 1/4" below the deck!!!! How it ran I don't know, but it did run good. I for one like to be different, but it's really hard to beat a 400. The one I swapped in had well over 100k on it, and I put 60k at least on it before I had the 468 built.

And I forgot bout the small/large journal cranks, my 327 was from a 69 Camaro, IIRC the casting number was the same as a 350, or one digit off....

You'd be supprised to find how many "mechanics" think that all Chevy 4" bore piston are the same. What was the shape of the crank, cause that should be one of the rare large journal 327's.

LynnJr · 04-30-2013, 07:58 PM

so a 8 inch balancer will fit on an engine with a fixed timing tab meant for a 62-68 327?

04-30-2013, 01:06 PM	#26
LynnJr Registered User Join Date: Nov 2012 Location: santa rosa,california Posts: 650	Re: I want to build a Chevy 327 - need tech help The 327's are internally balanced so the only question on the balancer is its outside dimension.Most were 6.75 and the large journal were 8 inch.

04-30-2013, 02:42 PM	#27
LEEVON Registered User Join Date: Jul 2006 Location: Ozark, MO Posts: 4,887	Re: I want to build a Chevy 327 - need tech help If you want a true 327, they seem to pop up on Craigslist pretty regular. Usually tired old original units from impalas, trucks, etc. Perfect rebuild candidates. __________________ '20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids

04-30-2013, 02:56 PM	#29
Gigem Registered User Join Date: Feb 2012 Location: Lakeway, TX Posts: 335	Re: I want to build a Chevy 327 - need tech help was gonna say the same thing about Craigslist... there are several on the Houston CL right now... Cheap... __________________ 1972 GMC Sierra Grande (current truck) 1980 Chevy Stepside (gone) 1987 Chevy Blazer (gone) 1972 Chevelle SS Convertible (gone) 1973 Chevy Corvette (gone) 1967 Chevy Camaro (STOLEN!)

04-30-2013, 03:02 PM	#30
naphtali5725 Registered User Join Date: Mar 2012 Location: NC Posts: 1,101	Re: I want to build a Chevy 327 - need tech help I'm in North Carolina near Asheville... if anyone knows of one, let me know __________________ My build thread... http://67-72chevytrucks.com/vboard/s...d.php?t=515829 Disabled Veteran 82nd Airborne Division Operations: Desert Shield, Desert Storm, and Uphold Democracy

04-30-2013, 03:24 PM	#33
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: I want to build a Chevy 327 - need tech help In 72, the crank pulley like that was actually two pulleys bolted on top of each other. If the truck didn't get power steering and AC, it just used one pulley Posted via Mobile Device

04-30-2013, 03:34 PM	#34
naphtali5725 Registered User Join Date: Mar 2012 Location: NC Posts: 1,101	Re: I want to build a Chevy 327 - need tech help firefighter, what a nice motor man, nice details __________________ My build thread... http://67-72chevytrucks.com/vboard/s...d.php?t=515829 Disabled Veteran 82nd Airborne Division Operations: Desert Shield, Desert Storm, and Uphold Democracy

04-30-2013, 06:51 PM	#38
LynnJr Registered User Join Date: Nov 2012 Location: santa rosa,california Posts: 650	Re: I want to build a Chevy 327 - need tech help http://asheville.craigslist.org/pts/3639977777.html http://asheville.craigslist.org/pts/3761649804.html http://charlotte.craigslist.org/pts/3723283825.html http://charlotte.craigslist.org/pts/3753043211.html http://charlotte.craigslist.org/pts/3754223993.html http://charlotte.craigslist.org/pts/3748592940.html http://charlotte.craigslist.org/pts/3770478849.html http://winstonsalem.craigslist.org/pts/3738836248.html http://winstonsalem.craigslist.org/pts/3679730545.html http://wilmington.craigslist.org/pts/3744745659.html Here are some North Carolina 327's on Craigslist.

04-30-2013, 07:03 PM	#40
406 Q-ship Registered User Join Date: Oct 2010 Location: Largo Florida Posts: 632	Re: I want to build a Chevy 327 - need tech help If you do the 307 crank in the 350 block it will get you a cheap 327. Just remember that the 307 crank is cast and not forged like GM used in 327, also that the 307 crank was made for the standard pedestrian market....not the high performance market. I would not play with a big cam or high RPM in a cast crank 327. GM did make a very limited number of forged 327 large journal in early 1969 (read rare and very expensive). Like said earlier, check with one of the crank manufactures to find a large journal 3.25 stroke crank and install that in a 350 block. I like the 327 too, but drive a 406 SB and you'll never look back (sorry could not resist). The balancers for the all SBC built between 1969 and 1986 (2 piece rear main) will work for a 327 fine....EXCEPT the one for a SB 400. This is also true for the flexplate/flywheel. __________________ Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle."

04-30-2013, 07:27 PM	#42
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,454	Re: I want to build a Chevy 327 - need tech help I had a 327 in a 78 Malibu I had over 10 years ago. It was rebuilt, had a Holley 600 and some alum intake. Cam was either stock, or very mild. When I took the car for a test drive, it smoked the sh!t out of the one legged right rear tire. Granted it was a 14" tire, but anyways the motor did run good. I pulled the motor out after it developed a knock, put in a 400. I pulled the heads after I got the motor out, couldn't find anything about the heads, casting numbers didn't come up anywhere. I don't remember what the numbers where, but there was some on the pistons. I told them to builder, he told me they were 350 flat top pistons. After that, I looked at the pistons, and they were 1/4" below the deck!!!! How it ran I don't know, but it did run good. I for one like to be different, but it's really hard to beat a 400. The one I swapped in had well over 100k on it, and I put 60k at least on it before I had the 468 built. And I forgot bout the small/large journal cranks, my 327 was from a 69 Camaro, IIRC the casting number was the same as a 350, or one digit off.... __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 6” lift 1999 GMC Yukon 350/4L60 4" SAS

04-30-2013, 07:58 PM	#44
LynnJr Registered User Join Date: Nov 2012 Location: santa rosa,california Posts: 650	Re: I want to build a Chevy 327 - need tech help so a 8 inch balancer will fit on an engine with a fixed timing tab meant for a 62-68 327?



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