I want to get 400-425hp out of my 1969 small block 327. It's rated at 300hp right now. What the best way to go about this with out spending a pill of money??

I was told that you can put a 283 crank in a 327 and you get a 302 out of it. What would that do for me??

I would stick with the 327 rather than turn it into a 302. You will lose torque with the smaller engine.

Getting 400 horses out of a 327 will require good flowing cylinder heads, and a matched camshaft, compression, and induction combination. It isn't too difficult to do, and could be done somewhat inexpensively using GM parts.

Pdq, care to chime in? http://www.camaros.net/forum/biggrin.gif

I agree with boodlefoof, keep the extra cubes. I think with the right components, there's no reason that you couldn't get your 327 to run as good if not better than a 302. Don't get me wrong, a 302 will absolutely scream, but you can't go wrong with a little extra cubes.

It really depends on what you want. I have one of those ol' 302s and it runs great, but really needs to run on the high octane racing fuel (actually I mix 50/50 Turbo Blue/Sunoco 94) to achieve it's full horsepower potential. I personally would prefer something with more cubic inches and a lower compression ratio (compared to a DZ 302) to be more pump gas friendly yet run as good or better than a high compression 302.

Just my 2 cents.

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X77, Stock matching number 302, 4:10 rear, black int, weld prostars, 2.5" Flowmaster 50 Series

http://community.webshots.com/user/lakemg

Build a 375HP vette 327, port the heads, headers, bigger carb as in a 650 or so, windage tray, 400 horses that i wouldnt want to tangle with on the street in a small nova or camaro

Just remember the 327 doesn't need the huge heads and cams that the 350 up engines do. It will kill the street ability of the engine if you get too carried away.

There was an article a few months back in Chevy High Performance magazine that did such a buildup. The end result was a 408 horsepower 327 that was nicknamed the "iron butterfly".

They started with a L79 327/350hp engine and did a basic overhaul. They also ported the camelhump heads and added a small hydraulic roller cam (can't remember the specs). For the intake, they used a Performer RPM and a 4bbl. Holley carb. Exhaust was a set of long tube 1&5/8" headers.

Someone priced out the components in another thread about this engine. The total came in at around $2,500.00 . It's not a cheap engine to build, but it's pretty stout for a small cubic inch engine.


Mark P.



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69 Camaro Coup-My Granny bought new in 1969!
Cortez Silver/drk blue interior
327/210hp
Dual exhaust with Turbo Muffs
Now with Pertronix Electronic ignition!
Powerglide trans.
Ugly & skinny tires!
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Search TV Christian Ministry: www.searchtv.org (http://www.searchtv.org)

My 327 is a good runner, and ended up being pretty cheap. I chucked the 210hp heads for a set of used vortecs. Pocket ported, new valves, springs, etc. I used the comp cams XE 268, Performer RPM intake, demon 625 carb....

Idles nice, and I can spin my tires at any light...Now I just need to get rid of the PG trans!!!

I tried the Holley system max kit. It comes with aluminum heads, intake , cam, timming chain, pushrods,lifters,and all the bolts you need. I put that on my 327 and got 432 horse power. Its really cheap too. Its about 1300 bucks and takes all the guess work out of what to run with what.

Hey FirstGenLT1, is this the kit you were talking about? http://www.holley.com/HiOctn/ProdLine/Products/SM/SMK/300-503.html
It looks like such a great deal. Would you mind saying what carb you are using? Geez imseriously impressed. Come spring time I might have to yank the engine and slap this kit on my 327 (link below). Thanks for the heads-up. Compared with the Edelbrock kit, Holley advertizes 10 more on the HP and Torque scales, yet I dont specifically know the differences in area between the dyno curves. Im guessing the Holley kit is cheaper, based on edelbrock prices sometimes seeming a lil high.

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NEW PICS! 1/10/03
My 68 Camaro: Project Whoa (http://www.geocities.com/capitolstrokers/cars_steven)

Hey FirstGenLT1
That Holley kit looks like the way to go. Did you change your converter or are you still running the stock one?
Sorry for so many questions, But this is my first Camaro. I have owned Chevelle's, Monte Carlo's, Bel-Aire's, and bigger cars like Impala's and you had to have at least 400HP to get them things moving.
Jim

I don't personally have any experience with the systemax kit, but the cam looks a bit oversized to me for a street 327. I would personally go with a smaller cam to build more low-midrange torque with the smaller cube engine.

True boodlefoof, torque seems like it would be a little lacking. If you look at the link I posted above, you see the dyno test on a 350, torque peaking at 4250 or so, which seems kinda high for the torque range one may want for the street. The other systemax kit comes with a little milder cam for emmissions regulations, all other parts being equal.

I cant believe I actually had a dream last night ordering this thing, then assembling it in my living room!

I've heard some very good things about the holley heads . . . sound like a sweet 327

edit: my 333 sports 10.25 comp., trick flow twisted wedge heads, comp 286 magnum hyd (236@.050, .523 lift w/ 1.6 rockers), perf rpm, 750 dp, 1-5/8 longtubes, msd ignition, 2500 stall (could prob'ly use more), 4.10s
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'68 Camaro (Baby) - 333, 200-4R, custom interior and paint, 12bolt going in soon
'94 Z28 (Pepe) - stock heads/cam and 3.23 gears - 12.44 @ 106+ 1.68 sixty, all motor (Jan '03 GM High Tech Peformance cover car)
a few other toys
some pics on the page: http://fastz28.cz28.com

[This message has been edited by fast (edited 01-16-2003).]

I used a holley 750 vacum secondary and a 2800 stall on a manual valve turbo350. If the car is a daily driver go with the smaller cam. You cam also order it with a different cam if you want but i think it cost a little more.

Where did you find the Holley kit for $1,300