C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

More Power from the 77' L-48 Please!

Thread Tools
 
Search this Thread
 
Old 10-19-2003, 03:25 AM
  #1  
somethingerother
Heel & Toe
Thread Starter
 
somethingerother's Avatar
 
Member Since: Aug 2003
Location: juno NY
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Default More Power from the 77' L-48 Please!

I just bought a stock 77' Vette and as we all know it came with 180 horsepower. I'm definitely gonna need more than that. If anyone knows about parts that offer great performance at an affordable price i'd love suggestions. As of now I am thinking of a new 700r4 transmisson, headers, pistons, camshaft, supercharger etc. If you have any suggestions about what you or others have done and how it helped and where to locate these parts that would be great. I definitely dont want to get smoked by some kid in a civic.
Old 10-19-2003, 03:30 AM
  #2  
Corz
Team Owner
 
Corz's Avatar
 
Member Since: Sep 2001
Location: Middletown Connecticut
Posts: 30,958
Likes: 0
Received 0 Likes on 0 Posts
Cruise-In IV Veteran

Default Re: More Power from the 77' L-48 Please! (somethingerother)

Engine: Heads, Cam, Intake, Carb, Ignition, Headers

Trans: 2400 stall convertor, shift kit

Rear End : 3.70 gears (if you can handle 12 mph in a tail wind)

that right there (assuming you arent mis matched) should get you a high 12 low 13 depending on traction


Old 10-19-2003, 03:55 PM
  #3  
ray77vette
Advanced
 
ray77vette's Avatar
 
Member Since: Aug 2003
Location: virginia beach va
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Default Re: More Power from the 77' L-48 Please! (somethingerother)

all depends on your cash flow and how good you are with tools. with a grand to play around with you can add an intake, new carb cam. that would be a good start.
Old 10-19-2003, 04:34 PM
  #4  
Guru_4_hire
Team Owner
 
Guru_4_hire's Avatar
 
Member Since: Apr 2002
Location: All humans are vermin in the eyes of Guru VA
Posts: 62,198
Likes: 0
Received 1 Like on 1 Post
Cruise-In IV Veteran
Cruise-In V Veteran

Default Re: More Power from the 77' L-48 Please! (ray77vette)

Vortec package from sdpc2000.com, demon carb, Roller valve train, dual exhaust with a crossover.
Old 10-19-2003, 04:49 PM
  #5  
MotorHead
Race Director
 
MotorHead's Avatar
 
Member Since: Apr 2000
Location: Who says "Nothing is impossible" ? I've been doing nothing for years.
Posts: 17,569
Received 156 Likes on 126 Posts

Default Re: More Power from the 77' L-48 Please! (Guru_4_hire)

Horsepower cost money how much do you want to spend then we can help,
BTW welcome to the forum. :D
Old 10-19-2003, 11:40 PM
  #6  
Chris O'
Burning Brakes
 
Chris O''s Avatar
 
Member Since: May 2000
Location: Brisbane, Australia 1985 Coupe
Posts: 958
Likes: 0
Received 0 Likes on 0 Posts
Default Re: More Power from the 77' L-48 Please! (somethingerother)

My '77 had ported stock heads, port matched Performer manifold, 2.02/1.6 valves, dual exhaust, comp cams XE256 and made 225RWHP. (auto, 3.08 gears).

:cheers:
Old 10-20-2003, 12:00 AM
  #7  
LiveandLetDrive
Melting Slicks
 
LiveandLetDrive's Avatar
 
Member Since: Jul 2002
Location: Boulder Creek California
Posts: 2,999
Received 20 Likes on 14 Posts

Default Re: More Power from the 77' L-48 Please! (Chris O')

Please don't waste your money on another carb. That can wait until much later.

Exhuast is your #1 priority. Duals are a must. 2 1/2" is most often recommended, but it depends how far you intend to go. 2" would be fine for a mild setup. Headers are important too, but won't really matter until you get better heads.

So simply:

1. Exhaust
2. Intake Manifold
3. Cam
4. Heads(higher compression)/headers

Somewhere in there you need to get a higher stall converter or new trans, and possibly higher diff gears (but that depends if you want standing acceleration or highway ability.)

I started with the same car and added what you can see in my sig. The cam dropped my 1/4 times about .7 seconds. I'm doing suspension at the moment, don't neglect that or you will have a car with lots of potential and no delivery :nonod:
Old 10-20-2003, 11:42 AM
  #8  
Ganey
Race Director
 
Ganey's Avatar
 
Member Since: Apr 1999
Location: CORVETTE 77 385 C.I. TEXAS
Posts: 11,520
Likes: 0
Received 12 Likes on 12 Posts

Default Re: More Power from the 77' L-48 Please! (somethingerother)

Ex. is first.
See what many refer to as my Exhaust topic. http://www.corvettefaq.com/c3/ganeyexhaust.htm
Dynomax Cerma coated headers for performance.
Then cam, good time to do intake as well.
Then engine build or trans.

Get notified of new replies

To More Power from the 77' L-48 Please!




Quick Reply: More Power from the 77' L-48 Please!



All times are GMT -4. The time now is 11:01 PM.