327 build - Team Camaro Tech
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post #1 of 36 (permalink) Old Sep 3rd, 08, 12:46 PM Thread Starter
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327 build

I decided to redo the 327 that i have. Originally i thought it was original 1967 327 but after tearing it apart found out that it is 1969 327. Also motor came with 041 heads which are double hump heads. I am thinking of getting a 383 stroker kit for regular 350 as it should fit this 327 being later block. And then get a set of AFR or DART heads instead of double hump heads. I know they used to be good heads but can't compare to new ones in flow. Looking at the block it seems as if it's been redone before .030 over. Bores still look good except three cylinders where i think the head gasket gave away. If i'm lucky honing is all that would be needed. I want some advice on which way will give most power for money. Forged 327 with double hump heads or 383 with new AFR or DART heads. I wanted to save some weight and get aluminum heads. I can pick up a set of trickflow aluminum heads beverly used with 1.6 rockers for $900(they are 195cc runners but not sure if 62 or 64cc chamber). I'm just trying to look at my options.
I already have rpm airgap intake with edelbrock 750cfm carb to put on top.


This is one of the heads. They still look in good shape just would need to be cleaned up.

1992 dodge stealth, base
1989 firebird T/A, ls1/t56
1967 Camaro
1991 V2500 Suburban

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post #2 of 36 (permalink) Old Sep 3rd, 08, 12:56 PM
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Talking Re: 327 build

The most power ? 383 without a doubt. That 750 CFM carb. is too big for a 327. It would be just fine on a 383. The 327 would be a high winding engine. The 383 will be a low end torque monster. I have a 327, like you mention, I wish it was a 383.
If I was to build one, I would go with RHS Pro-Action Iron heads and a Lunati 60103 cam.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #3 of 36 (permalink) Old Sep 3rd, 08, 01:03 PM
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Re: 327 build

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Originally Posted by TJS69 View Post
...That 750 CFM carb. is too big for a 327...
I wonder how many thousands of 327s GM produced with a 750 cfm carb sitting on top of a cast iron manifold?

"For those that will fight for it...FREEDOM ...has a flavor the protected shall never know."
Semper Fi! L/Cpl Edwin L. "Tim" Craft, B Co 3rd AT's, Khe Sanh Combat Base, February, 1968
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post #4 of 36 (permalink) Old Sep 3rd, 08, 01:15 PM
 
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Re: 327 build

unless your doing a resto motor or are restricted by rules it is silly to not go the 383 route or at least a 350.
Also,same aplies to factory heads at the least vortek heads and a AFR,Dart or other good head is smart money spent as heads dictate what the motor can do.
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post #5 of 36 (permalink) Old Sep 3rd, 08, 01:16 PM
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Re: 327 build

Quadrajet 750 yes. Holley 750 no. Holley 600 yes.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #6 of 36 (permalink) Old Sep 3rd, 08, 01:37 PM
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Re: 327 build

I used a Holley 750 on a very successful 327" motor, and it made about 50 more ponies than the 600 cfm carb that was on it, and was better starting at 4000 rpm on up.

"For those that will fight for it...FREEDOM ...has a flavor the protected shall never know."
Semper Fi! L/Cpl Edwin L. "Tim" Craft, B Co 3rd AT's, Khe Sanh Combat Base, February, 1968
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post #7 of 36 (permalink) Old Sep 3rd, 08, 01:58 PM Thread Starter
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Re: 327 build

Thanks for replies. I will probably go for 383 kit.
I've been looking at some 383 kits on summit and was wondering how far can cast crank go. I wanted to get forged pistons and forged crank but would i really need it? I would want this motor to go up into high rpms reliably. Or is it better to piece everything together separately?
Would buying a kit like this make sence:
http://store.summitracing.com/partde...5&autoview=sku
or better one of these:
http://store.summitracing.com/partde...5&autoview=sku

1992 dodge stealth, base
1989 firebird T/A, ls1/t56
1967 Camaro
1991 V2500 Suburban
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post #8 of 36 (permalink) Old Sep 3rd, 08, 04:53 PM
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T
 
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Re: 327 build

I have no association with them, but you may want to talk to CNC motorsports for a rotating assembly kit. I've heard good things and their prices tend to be quite good.
http://www.cnc-motorsports.com/category.asp?CtgID=1020

Other things to note:
-- 2nd kit you posted is 1-piece rear seal (& 11:1 pistons), which won't play well with your 2-piece seal block...
-- a lot of the 5.7" rod cast crank kits are externally balanced, so you may need a new damper, flywheel, etc. I have a strong personal preference towards an internally balanced assembly, but it's not based on any data or issues (just the engineer in me that thinks it's a better idea to have all the spinning bits and balancing bits as close as possible)
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post #9 of 36 (permalink) Old Sep 3rd, 08, 05:11 PM
 
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Smile Re: 327 build

JimM has a stock block 327 converted over to a hy-roller cammed 383 and he love's it!

That said, mbrekke has a hoped up 327 w/ an Isky Z-25 solid lifter cam and love's it too so please go from there!

Me personally, I like the grunt of my 406 but dearly miss the change from Dr. Jeckle to Mr. Hyde that my old junk301 used to make once it was "up on the pipe" as the 2-stroke guys say from rolling her outta the hole to like say 3,000 and nailing her up to 7 to 7,500 rpm and maybe a tad above w/ good points!!

Do it in 1st and repeat in each gear up until she's running so fast in 4th that if you get caught, you might lose your car nowadays! And I'm talking in my case as fast as 145 mph.

It's a hard call to make if you like rowing through the gears using high rpm HP until you are up top OR do you want big inch grunt lower rpm T you??

And my old hopped up 300hp/327 was a real hoot up as high as the old Crane/Cam Dynamics 272/272 Energizer would let her go AND that was above 6500 rpm w/ tweaked hy-lifters

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post #10 of 36 (permalink) Old Sep 3rd, 08, 05:12 PM
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Re: 327 build

Hmmm.... I was thinking maybe two gas 750's on a 327 (331 actually)....


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post #11 of 36 (permalink) Old Sep 3rd, 08, 05:24 PM
 
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Re: 327 build

Geez!

He, He!! I love it!!!

Like taking a '56, .060" overbore 265 and making a motor that you shift at 10,000+ rpm!!

What a hoot!

"Old-School" rules!!

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post #12 of 36 (permalink) Old Sep 3rd, 08, 06:17 PM
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Re: 327 build

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Originally Posted by Oldani Motorsports View Post
Hmmm.... I was thinking maybe two gas 750's on a 327 (331 actually)....

Is that the motor out of your Grannies Sunday church car?

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post #13 of 36 (permalink) Old Sep 3rd, 08, 06:19 PM
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Re: 327 build

Are you sure you have a 327?A 69 327 shouldnt have 041 heads unless its a Vette motor.

67 Plum Mist Met. 408 TH350 3.08 posi
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post #14 of 36 (permalink) Old Sep 3rd, 08, 07:04 PM
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Re: 327 build

Gotta Love the 327. This is my combo. 1968 010 4 bolt block. The only reason it's a 4 bolt is to mount the stock GM Vette Windage tray and Pan. Forged large Journal Crank Scat or SIR Rods and 10.5 TRW Forged Pistons. 291 64cc Turbo(Fuelie) Heads with 2.02/1.6's machined and ported to Jenkens Specs. Manley or Milidon Valves. Cheap SKR Shaft Roller Rockers. Holley 750DP/Edlebrock Dual Plane RPM and Sigerson 296S mechanical FT Cam. It's an 8000 rpm+ Engine and easy 425+Hp.

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This was my 70 1/2 Z28

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post #15 of 36 (permalink) Old Sep 3rd, 08, 08:51 PM
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Quote:
Originally Posted by 67 Plum View Post
Is that the motor out of your Grannies Sunday church car?

Only driven on Sundays, lol.

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