Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

How fast...

Thread Tools
 
Search this Thread
 
Old Oct 5, 2006 | 05:47 AM
  #1  
daytonight's Avatar
Thread Starter
Teching In
 
Joined: Sep 2006
Posts: 8
Likes: 0
Default How fast...

How fast would a 4gen be with a 427 big block pumpin about 500 hp? Maybe a Mm6, but probably a turbo 400 tranny? I'm just trying to get some rough ideas..
Reply
Old Oct 5, 2006 | 07:09 AM
  #2  
Villain281H's Avatar
7 Second Club
iTrader: (5)
 
Joined: Nov 2001
Posts: 8,834
Likes: 1
From: Gainesville, Florida # of drag strips runs: ?!?!?
Default

It depends a lot on how the car would be set-up.


If she is set-up for drag racing, and the big block is putting out 500 ponies at the flywheel, I'd say high 11s at stock weight. 500 ponies at the wheels would be more along the lines of mid to upper 10s.

That big block will add a good 200-300 lbs over the weight of a LS1 engine, even with aluminum heads.

Derek
Reply
Old Oct 5, 2006 | 09:00 AM
  #3  
cwaldt's Avatar
TECH Regular
iTrader: (4)
 
Joined: Jan 2006
Posts: 428
Likes: 0
Default

What ball park area would I be looking at with my setup in sig with a 250 hp shot of nitrous and properly set up suspension.
Reply
Old Oct 5, 2006 | 04:19 PM
  #4  
daytonight's Avatar
Thread Starter
Teching In
 
Joined: Sep 2006
Posts: 8
Likes: 0
Default

Is there a good way to shed some weight, and keep the interior intact somewhat?
It's going to be set up for the street.. I'm not sure what tranny i'm going to be able to use yet, but I'll probably end up with this turbo 400.. Do you think that i will have to change some gearing around? I'm not sure what the camaro rear end comes with..
Reply
Old Oct 6, 2006 | 06:57 AM
  #5  
cwaldt's Avatar
TECH Regular
iTrader: (4)
 
Joined: Jan 2006
Posts: 428
Likes: 0
Default

You'll have to ditch the whole Camaro rear end and get a 9"/12 bolt or Dana 60. You can also lose some weight and keep the interior intact. Take out your ac/heat, radio & speakers, center console etc.

As far as the motor weight you can get close to what the SBC weight was by doing a K-member and upper a-arms. Also you'll lose a few good pounds getting rid of all the computer and wiring junk.

If you aren't looking at 600 plus Horsepower it'd may be smarter to stay with a SBC just for less weight.
Reply




All times are GMT -5. The time now is 10:33 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE