Ok guys, I need some BB ideas. Here are my parameters.

Daily driver, so it needs to have enough vacuum for power brakes and heater controls.
No roller cam for now, as I don't want to spend another $1000 to get it running. Has to run on pump gas.

Engine is a 76 454 with 781 heads, 350 tranny with 3.73 posi rear(eventually will get a 700R4).

I'm trying to build a 12 sec car. I've read the BSE combo, but that seems like it is just a little too hot for me. I want to be able to drive this car across country if need be, and I would rather have complete reliability than stupid http://www.nastyz28.com/ubb/smile.gif power.

IMO, I would pick a good dual plane manifold & then get a cam to match it. I like the Edelbrock stuff (Buy American) & the Performer & maybe even the RPM is good stuff. I would Not get the Victor Jr, too much for a daily driver (if you pick the right cam to match the manifold). EDIT Oh yea, off the shelf hydrolic cam will work just fine up to the valve float for the stock springs. http://www.nastyz28.com/ubb/smile.gif

put on a good dual exhaust on the car & get a little stall into the converter (maybe 2200 - 2400) & have a GREAT time with it. drinks pump gas & smokes the tires when you want it.

If I were going to do it again, i would go with a 200R4 over the 700R4, it has a better 1-2 gear ratio. with a big block you might not care though. The down side, more $$$$, intitial cost.

Bob


[This message has been edited by Bobalos (edited December 14, 2004).]

.030 over, 9-9.5:1 hyper pistons, aluminum dual plane, 750 vac sec, shorty headers, 2.5" dual exaust, 220-230* @ .050 and .500-.544 lift hyd. cam, stock type everything else and a rev limiter set for 6500...
Welcome to the Dark Side!

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73RS/LT/427

My thinking is that it shouldn't take much to get into the 12's. I have a tired bone stock Goodwrench 454, Weiand stealth manifold vacuum 750 holley, turbo 350, 336 posi, hooker comp headers 2.5 exhaust and it will run mid to high 13's all day long. Thats on street tires have never tried drag radials and am in the process of doing the traction bar thing, the frame connectors are already on.
That frame twist from the big block torque seems to have an adverse effect on the body sometimes.

I love the Dark Side http://www.nastyz28.com/ubb/smile.gif

[This message has been edited by igotyoubabe325 (edited December 14, 2004).]

a copy of my 414 bbc 396 would get you well into the 12's and be very friendly on the street since thats what i built mine for. except im running 2.73 gears for low highway rpm's. with a decent set of gears mine would run easy 12's since my mph is cooking.

396 bored .090 over
10.5 to 1 compression
ported (myself)'390 casting heads 2.19/1.88 valves.
rpm intake
3310-2 holley 750 vs
summit headers
delta regrind cam 233/239 @ 050 with 547/551 lift 111 lobe centers-rhoads lifters
2500 stall th350
2.73 gears
3900 lbs
full exhaust 2 1/2" to full boar mufflers with 2 1/4" pipes ran on 245/60-15 uniroyals
tires.

vacuum at idle is 13.5"of hg and i run and race on 87 octane

carb tunning and timing tunning along with other tunning like oil and cooling the air intake charge gained me 5 mph in my traps speeds over the basic set up. it was 102 mph with tweaking it has raised it to my best and consistant 107+ mph

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1980 z28 3900lbs daily driver,414ci bbc,13.505 @107.19 mph w/2.15 60ft. 2.73 gears in street trim.

1981 camaro "the race car" as the kids say. 454 .060 over 13 to 1 comp.roller cam,nitrous, 4500 stall and 4.56 gears...severe traction issues,10.80's to low 11's @ 126mph....under recontruction on chassis

1986 ford pick-up "the tow rig" runs a slow 18.00 flat at 75 mph in 1st and second gear only.

NOOO SHIITT
i am in the process of putting a 414 in a 1970 camaro and what you have sound almost identical to waht i am working with here

i have an open 2.73 and a TH350 with a shift kit and 2500 stall converter. although i plan on putting a 3.73 posi in.

i might also put a slightly bigger cam in too becasue daily driving is not an issue with me.

so thas cool that my car will prolly run in the 13's

SAWEEET

<font face="Arial,Verdana" size="2">Originally posted by bryan1970:
so thas cool that my car will prolly run in the 13's
</font>

I hope to shout. my little stroker motor ran 12.7's on the motor.

Bob

I've got a great idea...instead of building your own, buy mine thats only got about 3000 miles. 500+ horsepower, TH400, perfectly streetable. Ran 12.1 at the track with no tuning. I'm gonna try to tune the carb a little after getting it on the dyno in a couple of weeks.

If you're the slightest bit interested, check it out in the Swapmeet section.

Cale

<font face="Arial,Verdana" size="2">Originally posted by bryan1970:
NOOO SHIITT
i am in the process of putting a 414 in a 1970 camaro and what you have sound almost identical to waht i am working with here

i have an open 2.73 and a TH350 with a shift kit and 2500 stall converter. although i plan on putting a 3.73 posi in.

i might also put a slightly bigger cam in too becasue daily driving is not an issue with me.

so thas cool that my car will prolly run in the 13's

SAWEEET</font>

i wouldnt put much more cam in there then this....you say you not concerned with street matters.....that cam has a pretty radical idle and it runs very hard to 6500 rpms.......as you can see im running rhoads lifters which make the cam appear smaller from idle to about 3000 rpms when they are fully pumped up............with this cam here it will need a solid 3000 stall...........you could go bigger then you will need a single plane intake to take advantage of the duration.....and the required stall to get you in the powerband.......

if my engine had 3.73 gears behind it and a true 3000 stall it would run low to mid 12's easy with sticky tires......the engine is putting down 372 hp to the ground which is about 450-460 hp at the flexplate.

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1980 z28 3900lbs daily driver,414ci bbc,13.505 @107.19 mph w/2.15 60ft. 2.73 gears in street trim.

1981 camaro "the race car" as the kids say. 454 .060 over 13 to 1 comp.roller cam,nitrous, 4500 stall and 4.56 gears...severe traction issues,10.80's to low 11's @ 126mph....under recontruction on chassis

1986 ford pick-up "the tow rig" runs a slow 18.00 flat at 75 mph in 1st and second gear only.

Stay away from hyper pistons...forged is the best way but even cast pistons are better than hypers, imo,...try to run around 10.5 to 1 comp, small solid cam like around 230-240 duration at .050, stealth intake, 750 holley, some kind of electronic ignition like an hei or a unilite if you don't have firewall room and a set of cheap headers...keep the rpms at around 5500 max...you can run pump gas, probably get in the hi 12s and drive from LA to NY

[This message has been edited by 450bench (edited December 19, 2004).]