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How many SBC vs BBC cars on this forum.

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How many SBC vs BBC cars on this forum.

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#82 ·
jrfan8bud said:
You obviously have not met the right woman yet. I totally understand why you guys love them!
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HerrKooled said:
wow Stephanie, so there are some women like that out there. where are they?
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MadmanMark said:
My wife used to say "I had boyfriends in high school with cars like that!"
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Yeah, I kinda wonder if in my case, it's due in part to the area of the country that I live in. Everything is soooo liberal and politically "correct" here that it makes me want to puke just thinking about it. So many of the guys here are NOT into muscle cars nor firearms, let alone the women. Once in a great while I'll meet a woman who says that she "likes" muscle cars, but it's usually just an empty verbal statement on their part in an effort to broaden their choice of guys since they know that there are some guys (even here) who are into muscle cars.

Last year I dated one such woman. But her claim of "liking" muscle cars didn't hold much weight to it since she constantly nagged me and complained about me spending "so much time" on my car. So her attitude and actions did NOT line up with her claim. As soon as I would crawl under that car to attempt to finish my restoration on it, and she knew about it, my cell phone would be constantly ringing with her on the other end trying to talk to me and get my attention off of my Chevelle. It's as if though she was jealous of the car like it was another woman! And yet, she could often be away from me for a good part of a day a couple times per week to be shopping at the mall for literally hours on end, but that was okay in her eyes. And that wasn't even during the holiday time either.

Oh well, let me stop before I turn this thread into a whole other topic. I just wanted to explain that Stephanie here, is a rare bird, and my hat's off to both her, and to her hubby for finding her. :thumbsup: (BTW, Steph, you have any sisters like you? :D)....
 
#83 ·
norvalwilhelm said:
By running a blower you can run humongus heads, 360 cc intakes without loosing street manners. The same heads without the blower would be a dog at low rpm. The blower makes up for their size and gives excellent flow for making real power.
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Unless maybe you even go alot bigger with the cubes maybe? Like about 92 cubic inches more than you have? :D I cannot say for certain since although my naturally aspirated 632 engine is in the car and is running, I haven't yet been able to drive the car since there are still things to do to it before I can do that.

But with a healthy sized camshaft (it's 268/278 duration @ .050 & .705"/.708" lift at the valves with a 1.7 rocker ratio) the engine is already making 715 ft/lbs of torque @ merely 3,000 RPM, and that's with 350cc heads. And the torque peak is 775 ft/lbs @ only 4,000 RPM, and that's all on pump gas alone. Maybe that isn't as much as your blown 540 makes @ 3,000 RPM, but I'd like to think that with torque numbers that good and down that low in the RPM scale, it's street manners and throttle response even down low won't be too bad. But I guess time will tell. And I hear ya on the outragous amount of $$$ it takes, cuz I'm only $3K behind you in the engine expenditure department. Gee...when ya get the bug for horsepower, you really get it good sometimes!
 
#84 ·
The blower equalizes the 92 cubic inches. Actually I am only running 12 pounds but if I bumped it up to 14.7 my cubic inches would feel more like 1080
Rough output
RPM Torque, Horsepower
4000 730 560
5000 790 750
6000 760 870
7000 710 950

That can be upped with a slight pulley change.
I run 12 % overdrive but I have 27% sitting on the shelf ready for a quick change if i feel like it
 
#85 ·
norvalwilhelm said:
The blower equalizes the 92 cubic inches. Actually I am only running 12 pounds but if I bumped it up to 14.7 my cubic inches would feel more like 1080
Rough output
RPM Torque, Horsepower
4000 730 560
5000 790 750
6000 760 870
7000 710 950

That can be upped with a slight pulley change.
I run 12 % overdrive but I have 27% sitting on the shelf ready for a quick change if i feel like it
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Norval, that's very interesting. By comparison, that blower on your 540, gives it some higher RPM capacity as well as a greater HP peak than my naturally aspirated engine has. Looks like my engine has the greater low end torque and perhaps greater midrange torque too (below 5,000 RPM) but at the 5,000 RPM mark, your engine takes command by comparison. Are those power numbers with pump gas, or race gas? Also, the slightly bigger intake ports might help a little bit too. Do you know how many cubes the blower itself displaces? I'm thinking somewhere in the 300 CID range, no? BTW, what type of car do you have this engine in? The fenders in that pic you've posted look like those of a Vette.
 
#88 ·
Race gas and my intakes ports are 360cc but the intake ports are huge and a straight shot so I don't loose anything there. On a normal intake you easily loose 15-20% just due to the intake ports.
My blower is only a 8-71 but spun up with overdrive.
I will go find a picture of the intake and ports. You don't loose anything in flow with a blower you gain a whole lot.
Under 12 pounds of boost my heads flow about 680cfm or support about 1320 theortical horsepower.
If you go enough boost you can make up anything over cubic inches.
Image
 
#89 · (Edited)
The race gas requirement would take the car off of the street for me. My pockets aren't that deep. That's precisely why I chose a pump gas motor for my car. But yes, those manifold ports sure are a straight shot alright. :yes:
 
#90 ·
Voted big block but I have owned and still do own both big and small blocks. Currently running a 505. Could only guess Hp and Torque values since this combo has never been dynoed. Guess I'll let people draw their own conclusions as to what this combo is able to put out. Hope it puts my 3800 Lb 70 chevelle in the mid to low 11's without a power adder. Would love to tweak it into the 10's on 93 octane
427 tall deck GM block bored to 4.350 with ARP fasteners on the bottom end
Crankshaft company crank 4.250 stroke
Carillo Steel rods 6.385
Milodon windage tray( Mesh type )
JE forged pistons approx. 9.5:1
Comp cams soild roller XR 280 r-10 .646 /.653 , 242 / 248 @ .050 , Lobe sep 110
Engle solid roller lifters with fesh rebuild from Comp cams
Engle rev kit
Harland sharp roller rockers 1.7 ratio
Jomar machine pro series stud girdle
GM heads Part #3994026 1971 over the counter LS6 heads with 2.3 / 1.88 valves ( back cut), some mild work done to the heads but nothing dramatic. CC's,milled .010,Gasket match, bowls blended, p.c. seals,etc.
Victor 454TD intake. Gasket matched by myself. Nothing fancy at all.
Holley 8082 1050cfm carb
 
#91 ·
BillyGman said:
The race gas requirement would take the car off of the street for me. My pockets aren't that deep. That's precisely why I chose a pump gas motor for my car. But yes, I'd like to see a pic of those intake manifold ports. :yes:
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Sorry I run on anything. If I am cross country running I would just fill up with normal LOW test. If I felt a little rammy I would put in 94 octane.
I run alot of timing. 24 static plus 12 all in by 3000 and 16 with vacuum advance and jet the transfer ports for about 16 or 17 -1 air fuel on cruise for economy. I can flip a switch and pull all vacuum advance out of the motor and if filled with high test 94 I am good to go,
With low test and full vacuum applied take it easy, run fast but no pushing alot of boost.
Boost is NOT rpm dependent but throttle position.
I can fill up with any garbage gas , hit the highway with full advance , running 80 or 90mph and not have a problem pulling down 20 mpg.
If I want all out from the motor timming must be pulled out and racing gas run but I never need full out power on the street
 
#92 ·
norvalwilhelm said:
but I never need full out power on the street
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Yes, that's understood. I'm sure that I won't either due to traction issues. But theoretically, for comparison purposes, as far as the power output of both yours and my engine, I would be curious what kind of numbers your engine would dyno with 93 octane pump gas alone since that's the only thing that mine runs, and the only thing that it will ever see or need. But w/out that info on your motor, an apples to apples comparison couldn't even be applied. oh well......they're still serious powerplants no matter what. :thumbsup:

....I still can't get over that bathtub you have for an oil pan! That's very nice for keeping engine parts lubricated and cool. Again I ask you, what type of car do you have such an oil pan and such an engine in? That isn't a Chevelle, is it?
 
#93 · (Edited)
It's a corvette and the oil pan fits fine and holds 10 guarts
I thought about building something bigger then the 540 but I chickened out, took the easy way and just built the 540. I already had alot of time into the intake, about a weeks worth and wanted to reuse it. If I went bigger I needed spacers or start over. I also didn;t want to use a tall deck since my headers wouldn't fit, I already had .6 raised exhaust ports and they were already causing problems.
I also didn't want the hassel of dealing with sleeving oil passages, a totally custom oil pan etc etc so I just wimped out and built this 540
Image
 
#95 ·
Dean said:
You only get one vote so you have to decide which one to vote for :D
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I voted small block because that is what mine is.
BillyGman said:
Last year I dated one such woman. But her claim of "liking" muscle cars didn't hold much weight to it since she constantly nagged me and complained about me spending "so much time" on my car.

Oh well, let me stop before I turn this thread into a whole other topic. I just wanted to explain that Stephanie here, is a rare bird, and my hat's off to both her, and to her hubby for finding her. :thumbsup: (BTW, Steph, you have any sisters like you? :D)....
Click to expand...
I don't complain about him spending time out in the garage. I just throw some old clothes on and go out and help. That way I'm killing two birds with one stone. He gets a helping hand and I get to spend time with him. Works out perfect for both of us.:yes:
I do have one sister but she is nothing like me. The thought of an "old" car and getting dirty, no way.:noway:What a prude.
 
#96 ·
norvalwilhelm said:
I just wimped out and built this 540
Image
Click to expand...
Norval, I don't exactly call the building of a 540 "whimping out".:noway: Especially one with a blower. In fact, with a blower, you don't need anything bigger than a 540. :thumbsup: BTW, it looks like you have a custom made transmission crossmember under there. I sure can relate to that. I had to fabricate one myself. Actually, I had to modify an aftermarket one quite a bit to make it work on my car, since the OE one wouldn't.

jrfan8bud said:
I don't complain about him spending time out in the garage. I just throw some old clothes on and go out and help. That way I'm killing two birds with one stone. He gets a helping hand and I get to spend time with him. Works out perfect for both of us.:yes:
I do have one sister but she is nothing like me. The thought of an "old" car and getting dirty, no way.:noway:What a prude.
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LOL.... where do nice women like you come from? Not from this planet. That's for sure. And that's meant in a good way I assure you.The ironic thing is that here I am saying that you cannot be from this planet because of the type of women you seem to be, and yet, I also have to say that based on your statements here, you seem like you're more "down to earth" than almost all of the American women that I've ever met in my life.
 
#98 ·
Have both,but in the Chevelle (now) is +.060 396

Speed Pro L2240NF pistons,
GM crank and rods,balanced,w/ SFI damper and flexplate,factory pan (kicked out pan w/the goodies wouldn't fit-crossmember),Melling 77 pump w/Moroso pick up
#290 closed chamber oval ports,Crane rollers,pocket ported,milled,2.19/1.88 valves w/undercut stems and multi angle valve job
C.R.=10.2:1
Comp 294S solid flat 248@.050 &.595" lift 110* lsa
Speed Demon 750 mech 2ndary,Holley black pump
P J quiet gear drive
30% underdriven crank pulley
High rise single plane
Hedman full length headers 2" pri 3" collector,Summit 3" X,Hooker Aerochambers,Flowmaster 3" tails
Aluminum high volume water pump
Moroso solid mounts
Nitrous Express Hitman,set @ 150,haven't had the pleasure with this engine,yet
MSD 6a currently,Mallory Comp 9000,Mallory Pro Master coil,Moroso 11mm wires
Aafco aluminum radiator
******* Performance 9.5" 3000 stall converter
TH400 by Jakes Performance (Jakeshoe),Hurst shifted V-Matic 2
Either a 10 bolt 3.73 w/locker or 12 bolt 4.56 w/spool
Moroso Trick front springs,relocated battery,AGR steering gear
RCI race buckets & harness
Centerline Convo Pro big n littles,15x10,w/ 28x13.5x15 Hoosier Quick Time Pros (track)15x7 w/275 60 15 street
Deluxe lightening rust holes and 'glass dome hood

I was guessing at 280 rwhp before the dyno day,I didn't make it there because of work.First time I've done a complete list of the current parts/combo I think.Sounds like a decent list,but it's still a flaming (literally,sometimes) heap of junk.The preceding version of this engine never went as quick as the sbc the preceded it.I'm confident(hope) this one's a little quicker.
 
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Discussion starter · #100 ·
We are getting some great Posts and Pictures.
Small Blocks / Big Blocks..they are all very nice....
You Guys/Gals...;)...Should be very proud of your rides... :thumbsup:

And for those that looked and didn't Vote....:boxing:
I will make the questions easier if there is a next time....:yes:
 
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Mikeys69
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