big block vs small block
- Thread starter fatso86
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well i have a say on this big block small block crap....
i had a 73 nova with a 307 chev in it, she was a 4 speed manual, with a ford 9 inch 4 11 gears, frame connectors, ladder bars, traction bars, drag shocks, all the right shiut, the motor had camel bump heads, 575 solid crane fireball cam, vic jr intake, holley 750 double dump, with the car revving 5000 an side step the clutch all you saw was clouds, ran 10.3, 10. 4 consistently and would wind up to 7800, this mill lasted 7 years before i had to bearings, big block, hmmmmmmmmmmm been there, done that, i like them, but they are what they are, OVERRATED, too much too build them, cant rev, and they are heavy, good for track, but suck on the street, unless your getting grocerys!!!!!!!!the cost of gas is sick, so why would you want a big block these days? with all the stroker kits you can get you can have big block torque out a small block, be lighter, rev higher and make way more power!!!!! but unless you have very deep pockets have at er, i have a 350 going into my 442 right now, bring them big blocks to me an see where you are, yeah you might be fast, but i can almost bet you are fast enough to see my tail lights!!!!!!!lets do the math, 11000 for a decent 455 olds motor will give you 5 to 550 horse with sick amount of torque, 7 grand into a chev small block, gets the same horse, less torque, but the small block buiulds power to 7000!!!!!!!!!!!!!!!!!!! so while that big block is chugging at 4900, the small block zings bye at 6500 an has more, what else needs to be said, if you got the coin big block yes, but if you want a decent ride sbc stroker kit, an hang the efffff on..................
alot will argue this fact, but feel free, i have had both, like both, but sbc wins almost every time over big block, thats my 2 cents now lets see what the big blocks guys think!!!!!!!!!!!!!!!!!!!!!!!!!
i had a 73 nova with a 307 chev in it, she was a 4 speed manual, with a ford 9 inch 4 11 gears, frame connectors, ladder bars, traction bars, drag shocks, all the right shiut, the motor had camel bump heads, 575 solid crane fireball cam, vic jr intake, holley 750 double dump, with the car revving 5000 an side step the clutch all you saw was clouds, ran 10.3, 10. 4 consistently and would wind up to 7800, this mill lasted 7 years before i had to bearings, big block, hmmmmmmmmmmm been there, done that, i like them, but they are what they are, OVERRATED, too much too build them, cant rev, and they are heavy, good for track, but suck on the street, unless your getting grocerys!!!!!!!!the cost of gas is sick, so why would you want a big block these days? with all the stroker kits you can get you can have big block torque out a small block, be lighter, rev higher and make way more power!!!!! but unless you have very deep pockets have at er, i have a 350 going into my 442 right now, bring them big blocks to me an see where you are, yeah you might be fast, but i can almost bet you are fast enough to see my tail lights!!!!!!!lets do the math, 11000 for a decent 455 olds motor will give you 5 to 550 horse with sick amount of torque, 7 grand into a chev small block, gets the same horse, less torque, but the small block buiulds power to 7000!!!!!!!!!!!!!!!!!!! so while that big block is chugging at 4900, the small block zings bye at 6500 an has more, what else needs to be said, if you got the coin big block yes, but if you want a decent ride sbc stroker kit, an hang the efffff on..................
alot will argue this fact, but feel free, i have had both, like both, but sbc wins almost every time over big block, thats my 2 cents now lets see what the big blocks guys think!!!!!!!!!!!!!!!!!!!!!!!!!
I think you're bullshitting because that sounds like a load. :lol: A 307 running 10.3's with double humps (even if they were bowties, ported), and four speed, without a ton of nitrous I highly doubt it. I mean what kind of compression did that thing have, and 7800 rpm? What kind of crank did you have in there definitely not a stock cast large journal 307 crank. And why would you need "traction bars" if you had ladder bars? Doesn't sound believable to me at all.
And if you put 11 grand into a 455 you'd be putting out quite a bit more than 500 hp unless you go to an engine guy that seriously rips you off. 500 hp should be doable with the right intake, cam, headers, and a little port work built on a well prepped rebuilt stock bottom end. And I know a guy that spent a lot less than 11 grand on an Olds 455 that has edlebrock heads, and all the above stuff I mentioned that makes over 600-650 horsepower never had it dyno'd but it's a monster.
And where does this "They can't rev" theory come from? 396's, 402's, 427's have the same stroke as a 400 sbc or 383 stroker and have longer rods and are performance engines... Believe me they can rev if you think a stroker small block can rev. A lot of big block muscle cars got the piss revved out of them and raced to pieces why do you think they're so much more rare and expensive. I mean you're right a 4.25 inch stroke 455 or a 4 inch stroke 454 nearly 70lbs+/- crank isn't going rev like a 307/327 with a puny 3.25 inch stroke 55lbs +/- crank but they can rev just fine don't worry. And it's already been established they don't HAVE to rev like a small block because they make so much more torque. :lol:
So I think your wrong but like you said... You're welcome to disagree with me. :lol:
And if you put 11 grand into a 455 you'd be putting out quite a bit more than 500 hp unless you go to an engine guy that seriously rips you off. 500 hp should be doable with the right intake, cam, headers, and a little port work built on a well prepped rebuilt stock bottom end. And I know a guy that spent a lot less than 11 grand on an Olds 455 that has edlebrock heads, and all the above stuff I mentioned that makes over 600-650 horsepower never had it dyno'd but it's a monster.
And where does this "They can't rev" theory come from? 396's, 402's, 427's have the same stroke as a 400 sbc or 383 stroker and have longer rods and are performance engines... Believe me they can rev if you think a stroker small block can rev. A lot of big block muscle cars got the piss revved out of them and raced to pieces why do you think they're so much more rare and expensive. I mean you're right a 4.25 inch stroke 455 or a 4 inch stroke 454 nearly 70lbs+/- crank isn't going rev like a 307/327 with a puny 3.25 inch stroke 55lbs +/- crank but they can rev just fine don't worry. And it's already been established they don't HAVE to rev like a small block because they make so much more torque. :lol:
So I think your wrong but like you said... You're welcome to disagree with me. :lol:
CAPERKEV said:
the 307 had steel crank, she also had a 250 shot of juice, comporession i think was 9.75 or jus a tad higher, not sure but wasnt 10, was a long time ago it was built an the car ran low 10.s you yell b.s. alot have an they saw this thing run, its an animal.
as for 11 grand in motor of 455 yea i did that, was a builder that did, he screwed me i know, an no that thing couldnt rev, as when it was pushed it floated valves before rev limiter hit, so you build your big blocks an have fun with them things, i been there an would rather saty small block, like i said i can get the same power with less weight an more revs, but your like the rest of them big block guys, you can always tell a big block guy, ya just cant tell em much,lmao
as for 11 grand in motor of 455 yea i did that, was a builder that did, he screwed me i know, an no that thing couldnt rev, as when it was pushed it floated valves before rev limiter hit, so you build your big blocks an have fun with them things, i been there an would rather saty small block, like i said i can get the same power with less weight an more revs, but your like the rest of them big block guys, you can always tell a big block guy, ya just cant tell em much,lmao
that was a mistype on my part, they were not traction bars that bolted to leafs, they were something similiar to a sway, but different hard to explain, it ran across the back of diff like a sway bar, but had another name, i cant remember, but when it hits me, ill let ya know,
oh yeah, 7800 rev, yep like i said 7800, the crane cam was a 575 i think solid cam, she made power from 3500 to 7800 check the old fireball cam specs if they still around, an also check a vic jr intake, single plane high rise, whats the power range on that thing, 3300 to 8000??? or something like that, check the stuff before you doubt it, jus saying is all
CAPERKEV said:
Hay pal so does my 461bbc i shift a 7800,But my solid roller cam make power at 4500 to 7800rpms, but you need to think that what ever you do to a small block you can do the same to the big block and there is no replacement for displacement this is true.
Yeah, mine always chugs at 4900 RPM. I hate it when that happens....CAPERKEV said:
larryo454 said:
Why yes, yes this is true.
larryo454 said:
you must have some heavy springs on those valves to keep them from floating and it must sound sweet at 7800
My eye twitched a little there :lol:gk666 said:
No but seriously, Pontiac motors are probably the best all around motors GM ever made. One size block for just about most if not all of their V8's, the only difference in displacement was bore and stroke. Damn things are nearly bullet proof if built up the right way, and are absolute torque monsters beat out only by Buicks and Cadillacs.
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