More Power from the 77' L-48 Please!
Thread Starter
Heel & Toe
Joined: Aug 2003
Posts: 16
Likes: 0
From: juno NY
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.
Team Owner
Joined: Sep 2001
Posts: 30,958
Likes: 0
From: Middletown Connecticut
Cruise-In IV Veteran
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
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
Advanced
Joined: Aug 2003
Posts: 94
Likes: 0
From: virginia beach va
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.
Team Owner
Joined: Apr 2002
Posts: 62,198
Likes: 1
From: All humans are vermin in the eyes of Guru VA
Cruise-In IV Veteran
Cruise-In V Veteran
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.
Race Director
Joined: Apr 2000
Posts: 17,665
Likes: 194
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
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
BTW welcome to the forum. :D
Burning Brakes
Joined: May 2000
Posts: 958
Likes: 0
From: Brisbane, Australia 1985 Coupe
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:
:cheers:
Melting Slicks
Joined: Jul 2002
Posts: 3,000
Likes: 22
From: Boulder Creek California
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:
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:
Race Director
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
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.
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.
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