Steve-Avanti

Did U make a decision? I'm curious. Have U priced any of the options U listed? Steve

Awesome...thx!!

Do you have electronic copies of both the dash removal sheet & electrical diagram you could share?

Heater core is in but it was a total pain in the butt. I had to grind & round off the bracket ends to get it to fit in the heater box. Angle brackets were from angle iron used for garage door track.

In my 77 we put a new Master cylinder out of a 67 Mercury Cyclone 390 with front disc brakes. Has worked flawlessly since 2016.

225/70/15 on 15x7 magnum 500 wheels

Take a pic of the Trans pan from underneath. If it's a GM it should look like 1 of these...

Sharp!!

Centric 13061026 67 Cyclone 390 engine front disc brakes. On rockauto.com $55.79. Been on my 87 Avanti over 10 yrs. No issues. Steve

Thanks for the summary...that's exactly what I was looking for. 3:73 it is!! Where are you getting the Speedo adjustment parts from?

Have you had a chance to drive it with the new rear gear setup?

Really clean stealth look on a black car...nice!!

Cool👍👍

Very interested in your impressions when the 3:73 is in & you've driven it. I have an 87 w/the 305 & very mild gear (good mph but uninspiring acceleration). Seriously considering 3:55 & 3:73. Thx!

Do you have the 200r4 trans.? What gear ratio are you considering? Those that I've spoken with recommend 3.55 or 3.73 for a noticeable improvement in acceleration.

Greetings All, My 77 has a tired original engine & it's getting rebuilt. While it's out, I'm upgrading various issues that need attention. The heater core has leaked for years & needs replacing. Does anyone have dimensions for the original unit? I've read that a 73-96 full size Chevy truck/Blazer etc. core is compatible. Can anyone confirm this? Thanks All!! Steve