Anyone else running a 327? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cfoust3 · 03-06-2007, 09:24 PM

I was wondering what you have done to boost the hp? Mine is still stock, and I want to get some ideas how to juice it up a bit without breaking the bank.

gnarkill · 03-06-2007, 09:30 PM

I got a 327ci punched .060 out so its a 336ci. All 327s come with Forged Cranks , I threw on KB pistons domed to hell, Eagle Rods, 64cc World Products S/R Torquer heads, HUGE Comp Cam Magnum Cam, Roller Rockers, 600cfm Holley carb, long tubes. The engine was balanced and I blueprinted it myself. I desktop dyno'd it at around 410hp around 6800.

PS Truck revs to the moon, i had it up to 7k before without it missing a beat, pulls hard as hell around 3800 to 6000.

skokie · 03-06-2007, 09:35 PM

Did the 327s from 68 with a large journal come with a forged crank? How could you tell? I do have a 327 that is sitting on a engine stand begging for attention

cabinetguy · 03-06-2007, 09:35 PM

327's like to rev so get a cam and manifold that allow this.

gnarkill · 03-06-2007, 10:02 PM

Yeah man they all came with forged cranks, I got the large journal which is a 350 main size. The 1st ones came with small journals. I got a lot of work done to mine.

Stroker · 03-06-2007, 10:03 PM

Quote:

Originally Posted by skokie

Did the 327s from 68 with a large journal come with a forged crank? How could you tell? I do have a 327 that is sitting on a engine stand begging for attention

I'm not sure if they all did but my 68 327 3/4 ton had a forged large journal. Look at the parting line on the counter weights if the parting line is wide and flat it is forged. If it's a narrow peak then it's most likely cast. You can also tell by the way the crank sounds, if it rings when you tap on it it's most likely forged the cast cranks will have a lower pitched sound. Hope this helps.

cabinetguy · 03-06-2007, 10:16 PM

You can also tell by the color. Steely gray= steel, rusty brown= cast

**special-K** · 03-07-2007, 08:38 AM

A 327 came in my`71 wrecker.I plan to rebuilt it all peppy-like for the`67 GMC I`m building.I`d like a Cummins in the wrecker

speedracer · 03-07-2007, 02:37 PM

cam, roller tip rockers, intake, carb and headers, would be a good start without breaking the bank. after that maybe some heads and bottom end work. 327's rule!!

rust!!whatrust? · 03-07-2007, 10:52 PM

Never had a 327ci. Depends on how you plan to drive it but revy motors love gears.

RACINJASON22 · 03-07-2007, 11:52 PM

speedracer has ya covered on the start.

chevymad · 03-08-2007, 12:12 AM

My 68 327 is a cast crank. So no they're not all forged.

03-06-2007, 09:24 PM	#1
cfoust3 Registered User Join Date: Mar 2007 Location: Hartford City, Indiana Posts: 54	Anyone else running a 327? I was wondering what you have done to boost the hp? Mine is still stock, and I want to get some ideas how to juice it up a bit without breaking the bank. __________________ Let me tell you what Melba Toast is packin' right here, all right. We got 4:11 Positrac outback, 750 double pumper, Edelbrock intake, bored over 30, 11 to 1 pop-up pistons, turbo-jet 390 horsepower. We're talkin' some ****in' muscle. -Wooderson From the movie Dazed and Confused

03-06-2007, 09:30 PM	#2
gnarkill Registered User Join Date: Nov 2005 Location: Atlanta, GA Posts: 40	Re: Anyone else running a 327? I got a 327ci punched .060 out so its a 336ci. All 327s come with Forged Cranks , I threw on KB pistons domed to hell, Eagle Rods, 64cc World Products S/R Torquer heads, HUGE Comp Cam Magnum Cam, Roller Rockers, 600cfm Holley carb, long tubes. The engine was balanced and I blueprinted it myself. I desktop dyno'd it at around 410hp around 6800. PS Truck revs to the moon, i had it up to 7k before without it missing a beat, pulls hard as hell around 3800 to 6000.

03-06-2007, 09:35 PM	#3
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,334	Re: Anyone else running a 327? Did the 327s from 68 with a large journal come with a forged crank? How could you tell? I do have a 327 that is sitting on a engine stand begging for attention __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

03-06-2007, 09:35 PM	#4
cabinetguy 67 shorty Join Date: Feb 2007 Location: Graham,Wa. Posts: 190	Re: Anyone else running a 327? 327's like to rev so get a cam and manifold that allow this. __________________ 67 SWB with enough parts to build two

03-06-2007, 10:02 PM	#5
gnarkill Registered User Join Date: Nov 2005 Location: Atlanta, GA Posts: 40	Re: Anyone else running a 327? Yeah man they all came with forged cranks, I got the large journal which is a 350 main size. The 1st ones came with small journals. I got a lot of work done to mine.

03-06-2007, 10:16 PM	#7
cabinetguy 67 shorty Join Date: Feb 2007 Location: Graham,Wa. Posts: 190	Re: Anyone else running a 327? You can also tell by the color. Steely gray= steel, rusty brown= cast __________________ 67 SWB with enough parts to build two

03-07-2007, 08:38 AM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,859	Re: Anyone else running a 327? A 327 came in my`71 wrecker.I plan to rebuilt it all peppy-like for the`67 GMC I`m building.I`d like a Cummins in the wrecker __________________ "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 ~

03-07-2007, 02:37 PM	#9
speedracer Blank Join Date: May 2005 Location: Southington, CT Posts: 221	Re: Anyone else running a 327? cam, roller tip rockers, intake, carb and headers, would be a good start without breaking the bank. after that maybe some heads and bottom end work. 327's rule!! __________________ 1969 lwb 4/6 drop 17x8-18x10 torque thrust II's 327-420hp 2004R 3.73 posi. 1977 Corvette 350-375hp 4speed, silver show car. 2002 S10 xtreme, work truck 2004.5 VW jetta GLI 1.8T 6speed, weekend warrior. 2013 Audi A3 TDI, the wife's car Last edited by speedracer; 03-07-2007 at 02:37 PM.

03-07-2007, 10:52 PM	#10
rust!!whatrust? Registered User Join Date: Mar 2006 Location: chattanooga tn. Posts: 27	Re: Anyone else running a 327? Never had a 327ci. Depends on how you plan to drive it but revy motors love gears. __________________ Don't touch the Rust. Punk

03-07-2007, 11:52 PM	#11
RACINJASON22 GEARHEAD Join Date: Jan 2007 Location: CENTRAL,PA Posts: 2,284	Re: Anyone else running a 327? speedracer has ya covered on the start. __________________ 72 SWB 2WD MY PROJECT 72 LWB 4X4 FUTURE PROJECT SUBSCRIBE HEREBOARD VENDORS HERE NORWOOD MEET SURVIVOR!

03-08-2007, 12:12 AM	#12
chevymad Registered User Join Date: Jan 2001 Location: skamokawa, WA, USA Posts: 527	Re: Anyone else running a 327? My 68 327 is a cast crank. So no they're not all forged. __________________ 70 C10 long fleet, 355/200 4r, 6 lug disc conversion, 3" drop 70 gmc changed to 67/8 chevy, 454 with voodoo cam, th400, all 74 running gear.. in progress



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