View Full Version : How does this 327 set up look?


JHunter
Dec 18th, 04, 01:15 PM
Here is my plan
68 327 .030 over from stock
TFS 23* heads 30400003
Edelbrock RPM manifold
KB flat top pistons w/ valve relief (part # 1479H)
Comp Cams 282HR
Roller rockers, 1.5:1
Stock crank / rods
Not sure about carb yet

I think I found a deal on the TFS heads, so someone let me know valve spring changes that might be needed. Also, if my deal falls through, keeping the stock heads, would this combo be managable until funds were available later to upgrade to a better head (like the TFS or others)?
Here's where Im really lost, I have no idea what the C/R is with the pistons (got them new but from a guy that bought them then didnt need them). So, its safe to say that Im not a smart engine guy, but is this a good / decent combo, and is it streetable? Im not planning many trips to the strip, but like most, I want a great performing driver (not daily) that can move out.

Nantooch
Dec 18th, 04, 03:37 PM
You may want to verify it, but a KB 147 piston is for a 400,, SBC 327's ar a KB157. As for the spring change, check with Comp Cams.. Call their tech support line and ask to be sure.

JHunter
Dec 18th, 04, 05:54 PM
Nantooch, thanks for the reply. When I bought the pistons I was told they were for a 327, and when I went on KB's website, this part number (1479H) shows up as for a 350. Here is a link to the page from KB
http://kb-silvolite.com/spistons.php?action=details&S_id=254
So, the blocks for a 350 and 327 are basically the same, as is the bore size, so will this piston work according to the info on their page?

COMP. HEIGHT 1.540
PIN DIAMETER .9273 offset
COMPRESSION RATIO(s)9.0 / 10.3 / 11.1
RING PACK 2-5/64 1-3/16
O.E. ASSY. NO. 3911020

If the pistons arent right, I will unload them on ebay, not trying to make something work that wont, but Im a bit confused. Can anyone shed some light on this for me? Thanks in advance.

JimM
Dec 18th, 04, 06:34 PM
The bore size is the same, but the compression ht isn't.

http://kb-silvolite.com/spistons.php?action=details&S_id=245&PHPSESSID=b605a3b4a8e840778923cd8b561c0420

pdq67
Dec 18th, 04, 06:34 PM
J,

I have posted many times that a little 327 motor that is up around a stock 10 to 1 CR will run like a "scalded-dog" with no more then a 160 to 170 cc intake port head, (-461 and -461X heads), a CC 268HE or Crane/Cam Dynamics 272/272 Energizer, along with a set of cheap, 1.625" four tube, long headers and a 600 cfm 1850 Holley vacuum secondary carb. on a good old Holley, 300-36 true high-rise dual plane intake!!

Chevy got the little motor just about dead-nuts right when they made the 300/340/360/365/375 hp 327 motors!!

BUT it's your motor so please do what you want to it...

pdq67

PS., and if you really wanta have fun, then take a 365hp/327 motor and drop an Isky Z-30 solid cam in it along with good valve springs and go have more fun then the Law will allow!! The only trouble nowadays is feeding the 11 to 1 CR.!!!!!

And I honestly believe a stock, 300hp/327 motor with a CC 282S solid cam will be one tough motor for it's size!!!!

MrDanB
Dec 18th, 04, 06:42 PM
Hi JHunter! I have a 69 coupe car w/327. I am in the middle of yankin my engine to spruce it up and detail the chassis, etc. I have the stock 210hp out of a '68 Camaro. I put in a comp cams 268HE cam, Holley street dominator and an Edelbrock 600cfm carb. I am about to swap the camel hump heads for a set of Pro-Topline 2.02 heads I won off e-pay! I am looking to figure out the compression ratio for my set up, but I don't have the engine out of the car yet and don't know what pistons I've got in it. I'm figuring on 9.4ish/1, but then I've been wrong before. Good luck on your build up. Once they're all dialed in, those little 327's are screamers!
I'll keep ya posted how my head swap turns out...

Dano graemlins/beers.gif

JHunter
Dec 18th, 04, 06:49 PM
Thanks guys. pdq67, I went to school at Kemper Military JC down in Booneville MO. If I was there now, I'd probably show up at your door with a 327 for you to play with. With everything I've done to cars in the past, I am still an engine building idiot. All the books and articles I've read still dont explain some of the 'mystery' as far as what part to put with what part to get a good HP rate and a well planned/matched engine (and I should say, part number to part number, cause I do understand how it all works lol). How about I give you a blank check (with a some sort of limit) and tell me what to buy lol. I dont want to sound like some of the folks that get on here and just say, "I just wanna smoke some mustangs", but, in the end, I want a good driver with some very impresive HP/TQ numbers, while being able to drive it. Ughhh. Maybe if I go out and beat my head against the engine I'll get smarter through osmosis. I think I've read every post with a "327" in it, but I almost need something as simple as a shopping list. Is that to much to ask? lol. Thanks guys.

JimM
Dec 18th, 04, 07:04 PM
A shopping list? Heck, that's what you started with... How 'bout this one

Stock rods & crank
forged flat top pistons
any 64cc / 180cc alluminum head
comp 268h or 270s cam
perf rpm
holley 650 double pumper

JHunter
Dec 18th, 04, 07:08 PM
Thanks JimM. Your right, I did start with a shopping list, but I think I was just grabbing stuff off the shelf lol. Thanks for your input, I know I probably sound like an idiot, but yalls help is greatly appreciated.

Nantooch
Dec 18th, 04, 10:05 PM
I'd say unload the pistons and go with either the 1423 flat tops, or go with a set of the KB dome tops. I picked mine up from jegs. Get a good set of rings to go with em and you'll have a little motor that definately can! Mine screams every time I give the throttle a touch.

pdq67
Dec 19th, 04, 05:59 AM
J,

I would really like ta work with you on this one as I bet Travis would too!!!

A stock, 210hp/327 motor should already have stock, four valve notch flat-top pistons and about 70 cc heads and a two-barrel carb. and intake system. And the great old -929 stock hy-cam that even the 300hp/327, 295hp/350 and 265hp/400 motors use!!

Therefore all you need to do to it to turn it into a 300hp/327 motor is find a good set of 64 to 67 cc medium valved heads and a decent carb. and intake system like a great old Holley 300-36, true high-rise and a 600 cfm, Holley, 1850 carb. Just using your stock log exhaust manifolds will be fine too for a stocker type motor like this..

Adding any of the following cams will up her a bunch as will adding a set of 1.625" four tube long headers and go!!

CC 268HE and 270 Magnum,
Isky 270 Mega,
Crane 272/272 Energizer or 274H06.

I personally love the little Duntov solid cam, but you have to lash it.. A modern equivalent should be a CC 270S solid installed on a 108 center.. Oh, BTW, a Duntov solid cam with no more then a set of cheap, $25, Z- or -142 springs will wrap as high as you have nerve enough ta hold your foot down!!!

Please note that as long as you stay in this advertised duratiion family, you will be fine.

I don't care for the EXTREME line of cams b/c of noise and longevity issues but know they do run great b/c too many guys are running them and like them. I'm just old-school is all..

pdq67

PS., try to match everything up so that you end up right at or a schosh below 10 to 1 CR. so trhat you can still run good pump gas sorta thing.....

.038" headgaskets and 64 cc heads or .015" steel shim headgaskets and 67 cc heads and four valve flat-top pistons should be right in there but check me anyway....

67 Plum
Dec 19th, 04, 06:19 AM
I have the stock 4 valve flat tops .060 over .003 in the hole .039 head gaskets 492 1.94in 1.5ex heads, Qjet ,275hp Qjet intake, stock manifolds and a 274HO6 very radical idle at 650rpms in gear. Runs power brakes fine and runs real strong.

JHunter
Dec 19th, 04, 06:30 AM
Thanks again Nantooch and pdq67, yalls input helps more then the searches I've done, even if some of its a repeat, maybe cause its from the start. So I take it that the "cut off" C/R point is right around 10:1 as far as keeping it on the streetable side. I think I will be able to get the TFS 'Duttweiler' heads, so I will at least have the head part figured out. I've been playing on DD2k with what yall have been sugesting, and I dare say Im getting a bit smarter. Is it smart to stay away from roller lifter/cam?
So now my shopping list is looking something like:
KB Flat slugs .03 (according to KB - 9.56 C/R)
Performer RPM intake
TFS 2.02/1.60 'Duttweilers'
CC 270 Mag
600 CFM (Still thinking about which brand)
A set of long tube headers

Thank yall again for your input and time. I know you guys probably feel like you have beat the 327 write ups to death, but I really appreciate your time with me.

MrDanB
Dec 19th, 04, 06:45 AM
JHunter,
Seems as though you are just 1/2 step behind me in my 327 build up. Thanks for posting this stuff b/c you are asking all the questions I was about to :D I am pulling my engine this morning, taking off the heads, then I'll know what pistons I have in there and any decking that may have happened over the years. I am very interested in knowing how your engine turns out!
I have been heckling Paul for 2 years now (PDQ) b/c I know how much he loves the 327's ;) You're smart for taking your time and doing it right. I would be lost without this board!!!

Dano graemlins/beers.gif

JHunter
Dec 19th, 04, 07:25 AM
Dano, Maybe I'll slow down then, and see how yours turns out, then send me your parts list lol. Im actually about elbow deep in bodywork now, the car is completely apart. Im trying to get a leg up on the engine so that what work I have to have done outside of my "shop" (used VERY lightly lol), I can source out now, early. When I make my final decision, I will have to stop reading anything about engines, here or in magazines, otherwise I will just get more confused lol. This is a great site, everyone on here (after the lawsuit issue was resolved lol) is super helpful and courteous. Thanks all.

Nantooch
Dec 19th, 04, 07:50 AM
JHunter - if your going to go with the combo you chose, bump the carb up a bit. Your combo is close to what mine is and a 650 was too small. (I'm running 10.5:1 cr on pump gas with no issues.) With the 750 with #70 primaries are just right.
As for headers, I went with a set of full length ceramic flowtechs. I dont have a/c but had no problem with fitment with the power steering at all. Had em butted up with a flowmaster system. Runs real smooth. You can take a look at the motor on the link below.

JimM
Dec 19th, 04, 08:49 AM
If you go with a 750 carb, I'd lean toward a vacuam secondary, not a dp.

JimM
Dec 19th, 04, 08:56 AM
and you and Dan are at the same place I am...lol car parts all over the garage, knee deep in cleaning and painting old sheet metal... 327 sitting on the engine stand waiting for some attention.

35 year old inner fenders are NASTY! And what is that stuff they put on the road side? All tough and rubbery and ugly and like a 1/4" thick!

pdq67
Dec 19th, 04, 09:03 AM
Brandon,

I kinda doubt that you are at 10.5 to 1 CR., b/c stock, big valve double-hump heads cc at 66 cc's.

4.03", 327 motor with -4 cc flat-tops and a "down in the hole" a stock, .025", along with say, .039" thick composite headgaskets give about 9.15CR. is all.

The old, .040" over -4 cc flat-top pistoned 327 motor I gave my nephew with .020" thick steel shims and a new pair of W/P's S/R, 67cc, big valve Torquer heads made like 9.49 to 1 CR.

He wanted it for an old P/U so I slacked off the CR. a schosh.. But I still went with a G/K type, "Little-Fireball", hy-cam..

But, please check my numbers and I used the ROSS Racing Pistons CR. calculator...

pdq67

Nantooch
Dec 19th, 04, 11:12 AM
pdq67, actually they are dome tops, according to KB they will produce the 10.5:1 with the 64cc heads. Machinist that I had put the heads together said same thing. So I've gone with that. If its a tad lower so much the better for cruddy gas we get now.

JimM- Some kind of funky undercoating, took mine off with a wire wheel before I found out my right inner was toast. Bought new ones, then sprayed with roofing patch tar, same as underbelly.. Quieted everything down.

pdq67
Dec 19th, 04, 01:19 PM
Gotcha guy!!

pdq67

MrDanB
Dec 19th, 04, 03:36 PM
Originally posted by JimM:
and you and Dan are at the same place I am...lol car parts all over the garage, knee deep in cleaning and painting old sheet metal... 327 sitting on the engine stand waiting for some attention.

35 year old inner fenders are NASTY! And what is that stuff they put on the road side? All tough and rubbery and ugly and like a 1/4" thick! Maybe we can start a club for 327's that are getting facelifted.lol I'll buy the first cyberbeer graemlins/beers.gif As for the rubbery stuff...it's just some tar-like undercoating they put on 'em. It's nasty crud to play with.
I got me a jug of that aircraft paint stripper and a big 'ol scraper...

For those interested, when you click on the links to get into this site, check out the "resto" section and the detailing areas on the site. There's a mountain of information on how to detail under the hood. I figure while the engine's out, it should have a nice looking background to come home to when I slap it back in there ;) I think I'll go see if I can get that last bellhousing bolt out and get ready to lift that pig out of there :cool:

Dano graemlins/thumbsup.gif

Baddbob71
Dec 20th, 04, 02:48 AM
My Son and I built a 327 for his 70 Nova last summer- 66 small journal zero decked block, factory forged crank cut 10/10, eagle 4340 hbeam rods, speed pro two valve relief flattops, 462 double hump heads now measuring 170cc intake port and 61cc chambers after 40+ hours port work and milling. Comp solid lifter XS268 cam, rpm airgap intake with Holley 650 double pumper, Hooker fenderwell headers.
We ended up with 10.1-1 static compression ratio with .041 head gasket. DCR was measured at the actual intake valve closure point and ended up at 8.0-1. On the test stand the engine sounds nasty at idle with 12 inches of vacume with no mufflers, cranking compression is 180psi.
We haven't put this in the car yet but expect it to run well, Desktop dyno says 403hp and 400 ft lbs of torque using cylinder head flow specs from a set of heads ported the same by Vizard. We feel it should make an easy, honest 350-375hp.
Watch your piston selection and deck heights on the 327, they are sometimes tough to get good compression. If you go with the 4 valve relief flattops and have them .025 down in the hole with a .051 economy head gasket, the compression will not be much.

MrDanB
Dec 20th, 04, 01:45 PM
Well, I did it! I yanked the 327 out last night and cleaned up the antifreeze that spilled all over the place :D I ran my setup on the compression calculator and it looks like 8.9:1
with a .041 gasket thickness...but that number sounds a bit low to me. I will be pullin' the heads sometime over Christmas vacation and getting some better (actual) numbers to plug in.
I'll keep ya posted as to the progress....

Dano

JHunter
Dec 20th, 04, 04:07 PM
Dano,
Good job on getting it out. Sounds like you've been working late each night on it. Id rather be doing that, but instead I spent my entire weekend (and tonight, and every night this week for that mater) sanding drywall in my house. I try to think of it as practice for when I do more bodywork on the camaro, but in reality, it just sucks. I just "won" my TFS heads on ebay. Anyone else get addicted to ebay and the theory of "winning" something. My dad says each time I tell him what I won, that I "didnt win sh!#, you paid through the nose for it" lol. He's right, I ended up doing better then through Summit etc, but sure wish others would have left me alone to bid all by myself. Why do people start bidding on stuff 4 days before it ends, do they not realize tht it just drives up the price? lol. Anyway, gotta get back to drywall. Anyone want some old iron heads, real cheap, 20 bucks less then I paid for the TFS heads lol. Good job Dano, and keep us updated (plus, I need you to finish and tell me how it turns out and what I need to buy, so get movin already). lol

19ynot52
Dec 20th, 04, 06:28 PM
jhunter, itried to email you, but it wouldnt go through. i have a set of new in the box set of trick flow heads if your interested. email me at ynot@dp.net or call 724 489 0505. tony

JHunter
Dec 20th, 04, 06:36 PM
Tony, ok, now I feel bad, lol. I just replied to your email, lol, I feel bad. I thought it was one of those "second chance" kinda scam emails from ebay. Wish I had checked on here first. Anyway, I was the winning bidder on a set on ebay. Geeesh, I feel like a jerk now, cause I automatically assumed it was an unsolisated 'scam' type email that people send that watch auctions on ebay. My reply email probably didnt make any sense, since you obviously didnt email me based on my ebay purchase, but that I was looking for some TFS heads. Plus, your timing stinks, lol, wish I had known you had a set about 3 hours ago, before I "won" the set on ebay. Merry Christmas Tony, and I truly am sorry for my reply, I really do feel like a jerk.

19ynot52
Dec 20th, 04, 07:02 PM
fivian, no problem, and no offence taken. i've been guilty of much worse than that in my life.

MrDanB
Dec 21st, 04, 05:01 AM
Sheesh Hunter, way to go :rolleyes: J/K I just got an email from the guy in Or. that's shipping my Pro heads...I thought it was an ebay advertisement, so I deleted it, then I had to figure out how to check my deleted files so I could reply to him :rolleyes: So this morning I go take a peek at my engine on the stand and the big empty area under the hood and I wonder: "How the heck am I gonna figure all this out?" :confused: Now I want to take more parts off to clean/detail etc. lol. I've got all winter to get her fixed up and put back together.
JHunter, send me an email and I'll send ya a pic or two. Just click my signature and go through my site...


Dano graemlins/beers.gif

68rs406
Dec 21st, 04, 06:10 PM
Originally posted by MrDanB:
Now I want to take more parts off to clean/detail etc. lol. I've got all winter to get her fixed up and put back together. famous last words dano, be careful, thats a verrrry slippery slope your standing on :D .
cool to hear about your project, don't worry about getting her back together, its a piece of cake (more famous last words ;) ). no really, its not bad.
hey if you need a hand maybe i can help you out, i'm real busy at work still, but the job is winding down (notice the shiny new county jail in everett?), i should have some more time on my hands pretty soon.
talk to you later,
Sean graemlins/beers.gif

MrDanB
Dec 23rd, 04, 07:09 PM
Thanks Sean, but by the time you make it up here, it'll be racin' down 529 PAST your 68 tongue.gif
(just joshin', I know you would cream me...) Anyway, I got the intake off, bought some gaskets and will be going over to a friends in Monroe tomorrow to do some porting! smile.gif If I keep a nice steady pace, I should finish by spring of '06. lol. Have a very Merry Christmas everyone!

Dano

MrDanB
Dec 25th, 04, 08:57 PM
O.K....I got 1 head bowl blended and smoothed out real nice. 1 more to go next weekend. I pulled 1 head off and found out that I'm at .030 stamped on the pistons. They are 4 valve relief flat top style. Tomorrow I'll pull the other head, starter, pulley etc. After I get the other head blended, I'll send them off for washing/cleaning, bolt them onto the block, and then send the mess over to a shop to degrease and paint. I think I might go with a dark red to match the body of the car (garnet red). In the mean time, I can keep detailing the chassis, frame rails, inner wheel wells, etc. I should have it back in the car by February sometime. I pick up the new TH350 around February, so it should all come together nicely! PHEW! I need a cocktail after all that... :D
Dano graemlins/beers.gif

68rs406
Dec 25th, 04, 09:28 PM
bring it, dano! tongue.gif :D .
j/k, glad to hear its coming along for you, how do the cylinders look? any ridge or anything at the top of the bore, or is it pretty clean?
just wait till you get that thing going again, the "bug" will have permanently left its mark, and you'll have to have more, it should be a new animal. we need to get you to the track, just to get a couple numbers, i think you'll be surprised. i'll give you a shot at my 5 liter first, if you can hang with that, then i'll break out the camaro tongue.gif .
talk to you later, i'll get in touch when i get a spare day or two, now the holidays are over, i should have more time.
graemlins/beers.gif
Sean