Featured My L79 ’67 Coupe ... Then and Now

[Jcpstrat]

Just want to continue to thank everyone here who's taken the time to say such nice/encouraging things and will help to push me to final completion ... if that's ever really possible. Remember most of what you see is what the body/paint shop did so they really deserve most of the credit. I did some rough body work and all the taking apart and putting it back together but the engine rebuild and final body work were done by professionals.

I know I'll have more questions but this engine 327co/350hp was rebuilt to original specs and has the 11:1 compression ration. Heads were machined to be able to run unleaded gas but does anyone have recommendations for the best gas to run and will I be needing to also add an Octane boost?

Right now it's got 93 octane gas with nothing added for boosting the octane. During my debug runs I haven't heard any knocking but I also haven't pushed it yet either.

 

[Rruuff Day]

Just want to continue to thank everyone here who's taken the time to say such nice/encouraging things and will help to push me to final completion ... if that's ever really possible. Remember most of what you see is what the body/paint shop did so they really deserve most of the credit. I did some rough body work and all the taking apart and putting it back together but the engine rebuild and final body work were done by professionals.

I know I'll have more questions but this engine 327co/350hp was rebuilt to original specs and has the 11:1 compression ration. Heads were machined to be able to run unleaded gas but does anyone have recommendations for the best gas to run and will I be needing to also add an Octane boost?

Right now it's got 93 octane gas with nothing added for boosting the octane. During my debug runs I haven't heard any knocking but I also haven't pushed it yet either.

Most of us run 91 as a minimum. There's some 94 up here but most of it has ethanol added which a lot of us avoid. I have never heard any detonation knocking in either my C6 or my C7 but I guess you'rs will be trial and error to establish if you need an octane booster.

 

[Jcpstrat]

Most of us run 91 as a minimum. There's some 94 up here but most of it has ethanol added which a lot of us avoid. I have never heard any detonation knocking in either my C6 or my C7 but I guess you'rs will be trial and error to establish if you need an octane booster.

Thks Rruuff Day ... what compression ratio are your engines?

 

[Rruuff Day]

C7 (LT1) is 11.5 to 1... But it's a direct injection. My C6 (LS3) was 10.7 to 1

 

[Jcpstrat]

C7 (LT1) is 11.5 to 1... But it's a direct injection. My C6 (LS3) was 10.7 to 1

OK ... thanks

 

[Luke 1967]

Hi John, Great to see the car ready to go in the driveway. And, I see green grass and clean roads, I'm pretty sure I know what you will be doing this afternoon! The car looks gorgeous and your persistence and attention to detail has certainly paid off. Congratulations on a job well done.
Luke
BTW, I have benefited immensely from your experiences, tips, and advice as well. A big thumbs up to the Forum and all of you who have made it possible to connect and share our passions.

 

[Jcpstrat]

Thanks Luke ... most things are working out but still chasing a few things and mostly minor things to finish out.

I created a new problem over the last 2 days ... when I installed the weatherstrip that goes around the doors ... now my doors won't close. ha ha Actually I had the same issue on the '74 I fixed up but I put that weatherstrip on in much warmer weather on it. Doors wouldn't initially close on it either and I adjusted the strikers out to where they would close to the first click, leaving outside of door about 1/4" out from the body at back of door. Then let it sit out in the sun. Over a few weeks I was able to keep adjusting the striker back in a little until the doors finally would close properly. We don't have that kind of heat right now so it may take me a little longer but they are closing to the 1st click at least. Keep me posted on yours! John

 

[turbozig]

Just want to continue to thank everyone here who's taken the time to say such nice/encouraging things and will help to push me to final completion ... if that's ever really possible. Remember most of what you see is what the body/paint shop did so they really deserve most of the credit. I did some rough body work and all the taking apart and putting it back together but the engine rebuild and final body work were done by professionals.

I know I'll have more questions but this engine 327co/350hp was rebuilt to original specs and has the 11:1 compression ration. Heads were machined to be able to run unleaded gas but does anyone have recommendations for the best gas to run and will I be needing to also add an Octane boost?

Right now it's got 93 octane gas with nothing added for boosting the octane. During my debug runs I haven't heard any knocking but I also haven't pushed it yet either.

For your 327 you should be fine running 91 or anything higher you can get. I am running 91 in my 70 454 with no issues. Time the engine accordingly and you should be fine, but your ears are your best friend for tuning.

 

[Jcpstrat]

Thanks turbozig ... that's encouraging.