C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

1967 435 corvette

Thread Tools
 
Search this Thread
 
Old Dec 27, 2020 | 04:22 PM
  #1  
DrJames's Avatar
DrJames
Thread Starter
Heel & Toe
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 16
Likes: 2
From: Washington State
Default 1967 435 corvette

Question , what fuel octane will a 1967 435 corvette run on . 91 I hope? when I was a kid My mom had a dodge with a 426 hemi and it pinged all the time from cheap gas . Found a nice car and before I get into the deal want to really know if it will run on pump gas ..thanks James
Reply
Old Dec 27, 2020 | 07:37 PM
  #2  
macguyver's Avatar
macguyver
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 1,143
Likes: 74
Default

Run the 91 ethanol free- some stations have 93 also
You can probably retard the timing a degree or two to help I think
Reply
Old Dec 27, 2020 | 07:54 PM
  #3  
DrJames's Avatar
DrJames
Thread Starter
Heel & Toe
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 16
Likes: 2
From: Washington State
Default

Macguyven thanks this helps and Happy Hoildays to you .
Reply
Old Dec 27, 2020 | 07:56 PM
  #4  
macguyver's Avatar
macguyver
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 1,143
Likes: 74
Default

I had a Big Block Chevelle that I ran 91 in no trouble- but it wasnt the LS-6
Reply
Old Dec 27, 2020 | 09:39 PM
  #5  
SBR's Avatar
SBR
Safety Car
25 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Jan 2001
Posts: 4,414
Likes: 766
From: Barrington IL
Default

It depends on whether the 435 is stock. A 426 Hemi had 10.25 compression and the L71 has 11 to 1 compression. 91 may be a bit low but I would ask the seller the specs on the motor. Retarding the timing a bit may help as mentioned or the use of octane booster could help too. A 67 435 Corvette is great car that you will enjoy.

Last edited by SBR; Dec 27, 2020 at 09:41 PM.
Reply
Old Dec 28, 2020 | 10:04 AM
  #6  
Trapper Sean's Avatar
Trapper Sean
Race Director
25 Year Member
 
Joined: Feb 2001
Posts: 14,002
Likes: 1
Default

I would recommend about 12 oz per tank Zaino with every fill up. Fuel will slide through the carburetor with less friction and later you can devarnish your valve stems with just a California duster.
Reply
Old Jan 1, 2021 | 01:21 PM
  #7  
Lotsacubes's Avatar
Lotsacubes
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2015
Posts: 2,571
Likes: 1,127
From: Huntsville AL & Hills of Southern TN
Default

You really need to move over to the C1/C2 forum and connect with those gurus if you haven’t already. The depth of experience there on all things C2 is incomparable. Answers here aren’t wrong, but in the C1/C2 forum many L71 owners will reply. Mine’s a high compression L72 and I’ve never used an additive, but run premium non-ethanol. Best wishes. Hope to see you over in the C1/C2 forum. AND I’ve found only Advanced Search here is worth a flip.
Reply
Old Jan 1, 2021 | 02:08 PM
  #8  
macguyver's Avatar
macguyver
Burning Brakes
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 1,143
Likes: 74
Default

DRJames
The fella that replied just prior to the previous last post was being a A-- clown- his comment was just being a smart alec two year old-
Zaino is a paint protectant

Last edited by macguyver; Jan 1, 2021 at 02:09 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Jan 2, 2021 | 12:45 AM
  #9  
DrJames's Avatar
DrJames
Thread Starter
Heel & Toe
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 16
Likes: 2
From: Washington State
Default

Yes I am not that lame, been around the block many times . I love this forum most guys on here are very helpful . Just never had a bb corvette , so wanted to be sure it would run on pump gas . Asked the seller and he said that it runs just fine on pump gas . Going to have car inspected , as its on the east coast ,I am on the west coast . It scored 96.6 on a top flight , he sent the car to f40 motorsports in Connecticut to fix the problems as that's were the car is Hope all goes well I want to drive it .Thanks for the e-mail and Happy Newyear to you .

Last edited by DrJames; Jan 2, 2021 at 12:46 AM.
Reply
Old Jan 4, 2021 | 01:49 PM
  #10  
Gixxerman's Avatar
Gixxerman
Moderator
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2010
Posts: 15,287
Likes: 4,213
From: Northern Illinois
2023 Corvette of the Year Winner - Modified
2022 C7 of the Year Winner - Modified
St. Jude Donor '18 thru '25
Default

Moved you here not exactly a Detail or Wax question
Reply
Old Jan 4, 2021 | 02:30 PM
  #11  
ettev's Avatar
ettev
Safety Car
Supporting Gold
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Mar 2000
Posts: 3,544
Likes: 448
From: Central Pennsylvania
Default

If the engine (heads) are unmolested originals you may consider a lead substitute additive too along with at least 91 octane.
Reply
Old Jan 4, 2021 | 02:54 PM
  #12  
Vet65te's Avatar
Vet65te
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2007
Posts: 6,005
Likes: 1,510
From: Prescott Arizona
Default

PM Sent
Reply
Old Jan 4, 2021 | 03:11 PM
  #13  
Tom Austin's Avatar
Tom Austin
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2002
Posts: 3,105
Likes: 2,367
From: Allison Park, PA
Default

Without pics, this car simply does not exist!!! 😃
Reply
Old Jan 4, 2021 | 03:41 PM
  #14  
DrJames's Avatar
DrJames
Thread Starter
Heel & Toe
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2013
Posts: 16
Likes: 2
From: Washington State
Default

Reply sent thanks
Reply
Old Jan 4, 2021 | 03:59 PM
  #15  
66WES's Avatar
66WES
Pro
15 Year Member
Veteran: Air Force
Liked
Loved
 
Joined: Sep 2006
Posts: 509
Likes: 141
From: Heaven
Default

VP Fuels Octanium Booster

Last edited by 66WES; Jan 5, 2021 at 12:34 AM.
Reply

Get notified of new replies

To 1967 435 corvette





All times are GMT -4. The time now is 06:19 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE