which engine sb vs bb
Thread Starter
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
which engine sb vs bb
OK, I am planning to build up a motor this summer and though I would as you alls opinion: 350 stoked to 383 or 427 bb, either will be hot street in 70 with m21 and 3.70 gears. Give me your thoughts :D
Advanced
Joined: May 2001
Posts: 69
Likes: 0
From: Rochester NY
Re: which engine sb vs bb (LT1driver)
I'm assuming you have the SBC so how about this?...
http://www.jegs.com/cgi-bin/ncommerc...22&prmenbr=361
MoTown 427 c.i., 505 H.P yeah baby!!...*LOL*...
This way you don't have to do the BBC conversion but can still say you have that magic 427ci...
:cool:
Of course nothing is as cool as a real BBC 427!!...Can't go wrong either way!...Choose whatever makes YOU happy!...Or at lease what makes your wallet happy!...*LOL*...
Jason
http://www.jegs.com/cgi-bin/ncommerc...22&prmenbr=361
MoTown 427 c.i., 505 H.P yeah baby!!...*LOL*...
This way you don't have to do the BBC conversion but can still say you have that magic 427ci...
:cool:
Of course nothing is as cool as a real BBC 427!!...Can't go wrong either way!...Choose whatever makes YOU happy!...Or at lease what makes your wallet happy!...*LOL*...
Jason
Advanced
Joined: May 2001
Posts: 69
Likes: 0
From: Rochester NY
Re: which engine sb vs bb (Signal)
Oh, almost forgot!...
http://www.sdpc2000.com/cart.asp?act...120&pid=156334
Another great alternative coming soon!...
http://www.sdpc2000.com/cart.asp?act...120&pid=156334
Another great alternative coming soon!...
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Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Re: which engine sb vs bb (foundvettelifeisgood)
My vote is for a stroked SB but if you do go big block don't go for a small 427 BB at least go 454 preferebly a 502. They will make more power for the same money
Senior Member since 1492
Joined: Aug 2000
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From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: which engine sb vs bb (foundvettelifeisgood)
I can't believe Len hasn't chimed in yet. :lol: :lol:
If you've got the $$ go with one of the Hi performance crate engines. I couldn't afford a large cash layout and don't like using credit cards. Cash & carry allowed me to afford my BB. It's still not in the Vette yet but I'm getting closer! :lol:
Check it out here: http://temp.corvetteforum.net/c3/the...t/index9.shtml
Le Mans Master
Joined: Aug 2000
Posts: 6,273
Likes: 14
From: Austin TX
Re: which engine sb vs bb (LT1driver)
IMHO, a 383 with proper induction, exhaust and gearing will give you all the HP and Trq you can use safely on the street without the weight and gas mileage penalties of a BB.
If you currently have a SB, you can use all brackets, etc. BB will require all diff brackets.
Go 383 and use the savings from BB for other performance upgrades: HEI, brakes, 17" wheels, alum radiator, elect fans, fuel injection, etc, etc.
On the other hand, if you have a bonafide LT-1, consider a restoration to OE/NCRS specs. This will hold or increase in value. Major mods as above will not.
[Modified by flynhi, 9:39 AM 1/24/2004]
If you currently have a SB, you can use all brackets, etc. BB will require all diff brackets.
Go 383 and use the savings from BB for other performance upgrades: HEI, brakes, 17" wheels, alum radiator, elect fans, fuel injection, etc, etc.
On the other hand, if you have a bonafide LT-1, consider a restoration to OE/NCRS specs. This will hold or increase in value. Major mods as above will not.
[Modified by flynhi, 9:39 AM 1/24/2004]
Le Mans Master
Joined: Jan 2000
Posts: 8,721
Likes: 108
From: Canada
Re: which engine sb vs bb (MotorHead)
personal choice, they each have their definate strenghts and weaknesses, I opted for a 383 stroker when I built mine up over a bb for a number of reasons, it's not that I don't like bb but for what I want out of an engine a stroker met my criteria. That being said - I plan on doing a body off in 2 years and replacing the #'s engine with a Z06 engine F.I. and 5 sp.
Race Director
Joined: Jan 2003
Posts: 15,173
Likes: 86
From: State of Confusion
Re: which engine sb vs bb (gdh)
If you can afford it, consider the ZZ502.
502 HP, 567 ft/lb of TQ, a mild cam for low maintainence, and will run on ANY gas (9.7:1 CR), with a warranty from GM, and BB parts for the C3 are still available.
Two cubic-inches too-big for NHRA Pro-Stock, for sheer 'WOW'-factor, it'd be tough to beat. With .030" over-bore and 1/4" stroker-crank, future rebuilds could reach 540".
It might-not out-run a Z06, but it'll SURE make the C5-crowd 'think' twice about it!!!
:thumbs:
502 HP, 567 ft/lb of TQ, a mild cam for low maintainence, and will run on ANY gas (9.7:1 CR), with a warranty from GM, and BB parts for the C3 are still available.
Two cubic-inches too-big for NHRA Pro-Stock, for sheer 'WOW'-factor, it'd be tough to beat. With .030" over-bore and 1/4" stroker-crank, future rebuilds could reach 540".
It might-not out-run a Z06, but it'll SURE make the C5-crowd 'think' twice about it!!!
:thumbs:
Racer
Joined: Jan 2003
Posts: 339
Likes: 0
From: Ann Arbor MI
Re: which engine sb vs bb (gdh)
LT1Driver,
I don't know if you'll get the answer your looking for, because I bet the results will be equally split between SB and BB.
Having said that, when I was at the Barrett-Jackson auction the other day, I always found myself wandering towards all of the cars with BB. There is something mesmerizing about a BB. The 427 has always been my favorite.
Overall, SB are lighter and can also generate some serious horsepower and torque. I think that 427 small block is a cool motor. But its pricey. The 383 stroker from AR is very popular along with the GM crate engines. Such as the Fastburn.
But as others have mentioned it all depends on your budget and what you are trying to accomplish.
[Modified by 1971Ultra, 11:40 AM 1/24/2004]
I don't know if you'll get the answer your looking for, because I bet the results will be equally split between SB and BB.
Having said that, when I was at the Barrett-Jackson auction the other day, I always found myself wandering towards all of the cars with BB. There is something mesmerizing about a BB. The 427 has always been my favorite.
Overall, SB are lighter and can also generate some serious horsepower and torque. I think that 427 small block is a cool motor. But its pricey. The 383 stroker from AR is very popular along with the GM crate engines. Such as the Fastburn.
But as others have mentioned it all depends on your budget and what you are trying to accomplish.
[Modified by 1971Ultra, 11:40 AM 1/24/2004]
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Re: which engine sb vs bb (Scooter70)
For use in a 70 LT1, I would stay true to the original design of the car but put in a modern (1992 - 1996 vette engine) LT1. With heads and cam you can get major power out of the LT1 and it is a great modern engine. Install may be a bit tricky, but you keep the stock hood with the "LT-1" stickers... :) One of my "dream" projects, actually.
My bigblock dream projects include building an engine starting with the all-aluminum ZL1 block ($5k to start for the bare block! :eek: ) and I am wondering what hood the new 572 ci 600++ hp crate engine will fit under... I don't think any stock vette hood.. that one is around $13k for the complete engine. MJ
My bigblock dream projects include building an engine starting with the all-aluminum ZL1 block ($5k to start for the bare block! :eek: ) and I am wondering what hood the new 572 ci 600++ hp crate engine will fit under... I don't think any stock vette hood.. that one is around $13k for the complete engine. MJ
Thread Starter
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
Re: which engine sb vs bb (MNJack)
Just to clarify, it is original LT-1, matching numbers on everything etc., that motor will go to storage as will stock trans and rear end. I have a L-88 427 short block in storage, I know ncrs guys (I am one :lol: ) but I don't want to buy another car and want to go faster :D , limited budget but do have many items or access to some things already. I won't ruin car, just modify for me, also plan tremmec 5 speed or 6 speed. :D