Red line

Reply Subscribe

Thread Tools

Search this Thread

Apr 7, 2025 | 07:15 PM

fr5512

Thread Starter

Intermediate

Joined: Jan 2011

Posts: 28

Likes: 0

Red line

Hi guys
67 427-390 with an automatic it’s a real one with a tank sticker. The tach red line is 6000 I have others that are 5500 red line so
I pulled the dash and it’s stamped 1967. Has anybody ever seen this ?
Don

Apr 7, 2025 | 07:24 PM

Nowhere Man

Team Owner

Joined: Feb 2003

Posts: 54,121

Likes: 9,429

From: Sitting in his Nowhere land Hanover Pa

2024 C2 of the Year Finalist - Unmodified

2015 C2 of Year Finalist

Here is dad's 67 427/390 auto and ac cluster. I know it's a glare but the redline starts at 5500

Apr 7, 2025 | 07:35 PM

fr5512

Thread Starter

Intermediate

Joined: Jan 2011

Posts: 28

Likes: 0

It’s hard to see but it looks like the yellow starts at 55 and Red lines at 6000
I have another 427, 390 stick and that starts at five grand and red lines of 5500

Apr 7, 2025 | 08:08 PM

barkingrats

1967 Pedal Car Champion

Joined: Mar 2020

Posts: 9,137

Likes: 4,248

From: US-PNW

1966 427/390s had a lower orange/red zone on the tach than '67 and up.
You can see my '67's tach zone in this pic:

Last edited by barkingrats; Apr 7, 2025 at 08:17 PM.

Apr 7, 2025 | 08:27 PM

thoyer

Melting Slicks

Joined: Sep 2005

Posts: 2,712

Likes: 902

From: Warminster PA

Quote:

Originally Posted by 67:72

1966 427/390s had a lower orange/red zone on the tach than '67 and up.
You can see my '67's tach zone in this pic:

My 67 390 car has the same redline as well

Apr 8, 2025 | 03:31 PM

435er

Racer

Joined: Mar 2005

Posts: 253

Likes: 58

This has been brought up a few times in the past, but with no real answer for the difference in red lines for identical engines.
I have an interest here as I've had two of these with four speeds which we know are no different than the auto. Curious to know
what was GM's reasoning behind this?

Apr 8, 2025 | 06:48 PM

fr5512

Thread Starter

Intermediate

Joined: Jan 2011

Posts: 28

Likes: 0

I have No idea I actually thought maybe somebody had change the tachometer but it’s all original.Now that I see The gentleman’s post above , my tack is the same. Red line is 6000 but like I stated I have a 427, 394 speed aLao and red line is 5500.
Thanks Don