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Old 01-21-2009, 05:13 PM
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your high hp/torque 327 engine build

i cant seem to find a cam for my engine build so i want to know your engine build.

it needs to be around 400 ft lbs and 400 hp. over 400 would be perfect.


a 350 block with 327 crank is fine.


thanks!

p.s. price is not a problem as long as it doesnt go over $4500. and this is going in a truck with a 4 speed manual with any rear gear you want. currently has no gears...

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Old 01-21-2009, 07:58 PM
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Great low and mid range cam for 327...

I have a 327 that I built in my 1949 Chevy pickup and we did a comp cam Extreme Part#? It had 238 in the part number. It is excellent! low and mid torque is awesome! I have a Edel carb 600cfm, Edel performer intake, Edel performer RPM heads, Hyper pistons flat top 9:5-1comp, MSD ignition and it runs so damn good with all kinds of great power. I recommend it as I drive it on the street and starts easy, and the whole driveablity range is very good with no dead spots anywhere. Hope this helps in your search.
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Old 01-21-2009, 08:07 PM
How fast is fast enough?
 
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LOL, a 327 with 400/400? I hope you'll be runnig a blower. I suggest doing a slightly better than stock rebuild with an RV cam and putting a mini-blower on it. It'll total about 4500.
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Old 01-21-2009, 08:29 PM
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383 rotating assemblies are dirt cheap, your crazy for not doing a stroker and you'll regret it when it doesn't perform to your expectations.you can actually buy a 383 long block from blueprint engines with 405 hp and 440 torque for about 3700, add an intake carb and ignition and bam 405 horse and 440 tq for under 4500 and not have to lift a finger as far as building an engine goes.

Last edited by stroker_SS; 01-22-2009 at 05:22 AM.
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Old 01-21-2009, 08:29 PM
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Cam for your 327

Jak,
You can get 400hp no problem out of your 327! I had amost 400 HP and 402 in Torque on my 327 before I even had my Weiand 142 blower set up!!! Yes, it was a little rocket indeed and very street-able. This is not that hard to acheive if you put a combination together that actually works and performs like it is supposed to.
This is the part number of that great street cam I spoke of above #CCA-12-238-2 Summit's part number. If you need any other ideas for your mouth motor 327 just let me know, be glad to accommodate.
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Old 01-21-2009, 09:19 PM
How fast is fast enough?
 
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you can do it if you get some great heads, intake, and exhaust set up. Using a mini-blower would be the easier way, and probably slightly cheaper as well.

Then again, you could run a miniblower on Vortec heads, and make upwards of 500/500... And its all quite reasonable too. Miniblowers are not as expensive as their bigger brothers.
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Old 01-21-2009, 09:34 PM
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Your 327 build

I agree with ap72 on the mini-blower!
I gave $2400 for a polished 142 kit new and it's like $400 less unpolished so that's really not bad for your gain. Just make sure you don't have too much compression and get a larger carb that is supercharger specific from like Holley, which is what everybody recommends that I haves spoke with. And a cam for a supercharger or one that is okay for it. I would call some cam companies and ask them too for they're advise.
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Old 01-21-2009, 10:23 PM
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142s are great on mid sized V8s. I'll cast my vote for the 142. I had one on a 350 and loved it. It would be perfect for a 327. Just don't try to get carried away with the boost. 6 psi is about all you need to make it a huge kick in the pants.

A boost referencing carb is a good thing to have, but I never ran one. I just tinkered with the power valves until I had something that worked. It wasn't perfect but it worked. You can also modify a regular Holley for boost referencing yourself.
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Old 01-22-2009, 12:04 AM
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hey thanks for all the help.

i want to stay away from blowers. sorry. i just dont like the big fly catchers. and i dont like detonation! ive broke too many cranks/con rods with nitrous and things like it.


so any combo that will give me over 400 hp and ft lbs without a blower will work for me. cant be in the 5500rpm and over power range. i want it to last.



thanks again
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Old 01-22-2009, 12:20 AM
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Getting that kind of HP/torque out of a 327 may be done but requires some major thought to do it..For the guys who want/need that kind of power and durability I like lots of cubes like using a Cad 472/500 those puppies put out like 375 HP and 500 ft/lbs out of the box and last forever if serviced regularly..

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Old 01-22-2009, 05:12 AM
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If you went with modified vortec heads or a good set of aftermarket heads, a solid cam, lightweight pistons, lightweight rods, forged crank, a real good balance job, and real good carb on top along with some other goodies to make it all work you could probably get into 400 hp at the extreme end of the RPM band. Dont know about 400 lb ft of torque though, you would have to sacrifice some bottom end to reach higher revs. That is where the real potential of a 327 is.

Those kind of #s are much eaysier to obtain with a longer stroke. Even a 350 will get you there a lot easier. That is coming from a guy who is currently building himself a 327. 350 or so hp and torque is a way more reasonable goal for a 327.

Last edited by 65smallblock; 01-22-2009 at 05:24 AM.
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Old 01-22-2009, 03:32 PM
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ive had my mind set on a 327 for 4 years. ive worked lots of hours for $5.50 an hour to get my $5000 i need for this engine. everyone has a 350. and 327 get up rpms soooo much faster than 350s. i will go with whatever it takes to get up over 400 hp and ft lbs. no nitrous or blowers though.

i just want an engine that will be easy and fun to drive around.




thanks again for all the help!
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Old 01-22-2009, 04:13 PM
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They are cool little motors with a stellar history. Im a sucker for nostalgia too, thats why Im here..

Still, if I had to go back and start from square 1 again, knowing what Ive learned along the way, I just might have decided to build a 377 instead of a 327. Its basicaly got the same bore to stroke ratio as a 327 (or real close) and so they also get up into the rpms quick. Quicker! And the power #s your looking for would probably be EASY!

Its basicaly a 400 block with a 350 crank. Its like a 327 on steroids! Would make a wicked sleeper motor in a lightweight street car. Just some food for thought.
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Old 01-22-2009, 11:03 PM
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so 65smallblock would i use 350 pistons or 400 pistons? and what con rods? i was thinking about doing the "engine that chevy should have built". 400 block with 327 crank, 6.2 rods, stock 400 cam (i would probably go with a roller with about the same specs) , and some nice heads. from what ive read it makes an easy 400 hp and a really nice long torque curve. that would be one hell of an engine. and would work really well in my heavy truck. 1958 1/2 ton.
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Old 01-23-2009, 07:26 AM
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I think you would be better served with a 377. They are pretty straightforward, you just use a 350 crank, 350 rods and 400 pistons. With your budget I wouldnt mess around with old pistons. Just get a set of Kieth Black hyperutectics and some of the new PM factory rods would probably work real good for a 377. Aftermarket rods are even better.

You would also have to get a special set of bearings to make the 350 crank fit in the 400 block, they have spacers that are used in conjunction with 350 bearings also but the special 1 piece ones are better.

If your gonna build one of them then try to find a 2 bolt main 400 block. the 4 bolt main blocks were prone to cracking. I dont know the details of doing the one with a 327 crank but the 377 would be way better for a heavy truck. More torque to get it goin.

Let me know if you want my opinion on building a stout 327. Im not really going for broke with mine, but it should make some pretty respectable power for a 327. Theres definatley way more power to be had from a 377 though. It would be kind of like a 409 big block in a small package. Less cubes but a more modern design.
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