1977 C3 engine conversion

[trower]

Hi everyone. I'm new to this forum and would like to share my project. My 77 was in need of a face lift so I started with the brakes and calipers which evolved into rebuilt trailing arms and struts. I rebuilt the 350 to about 300 hp and wanted a 4 speed auto and a serpentine belt system and EFI. The cost of this was way over my budget so I found a low mileage 1992 corvette LT1 with a 700R4 and all the wiring and ecm. This was exactly what I wanted. EFI, 4 speed auto, serpetine belt and 300 hp. Drive train is installed and ready for a test start. I still have to install a radiator and hook up the AC and trans. cooler. Crossing my fingers!

 

[Rob]

Welcome to the Corvette Action Center!

 

[Wayback]

Good luck with your project

 

[Hib Halverson]

Where are you getting the ECM calibration for your project?

 

[bill81vette]

Welcome to CAC!!!!
Enjoy!!!

Sent from my moto z3 using Tapatalk

 

[trower]

Where are you getting the ECM calibration for your project?

From a company in Pennsylvania called LT1 Wiring. They do LS wiring also. I sent them my harness and they custom configiuered it to fit the 77 corvette. They also did the eprom. I forgot to have them remove the speed limiter but maybe 150 mph is enough?

 

[Hib Halverson]

150 will definitely be enough. Because of its rotten aerodynamics, a '77 without some aero mods, would be frightening to drive over about 130.

 

[trower]

150 will definitely be enough. Because of its rotten aerodynamics, a '77 without some aero mods, would be frightening to drive over about 130.

the 1992 had a top speed of 150mph . The 1977 has a lower drag coefficient than the 1992. Therefore a 1977 with the same power train should top 150mph.

 

[Hib Halverson]

Pease, post the aero numbers for '77 and '92 as well as your source for those numbers.

 

[jrose7004]

Welcome to the CAC and good luck with your project!

 

[trower]

I'm sorry I read the article wrong. Here is the link. Corvette Wind-Tunnel Testing - Is Corvette Styling Just For Looks? - Corvette Fever Magazine