C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Exhaust diameter for my '71 454....

Thread Tools
 
Search this Thread
 
Old 03-17-2004, 10:13 PM
  #1  
WeasleVette454
Racer
Thread Starter
 
WeasleVette454's Avatar
 
Member Since: Feb 2002
Location: Greenfield OH
Posts: 308
Likes: 0
Received 0 Likes on 0 Posts
Default Exhaust diameter for my '71 454....

After talking ot a friend that owns an automotive performance shop, I'm convinced that the 2" pipe on my car is too small. What did the '71 LS5 454 cars come with from the factory? And...should I be running 2 1/2" at minimum? By the way, this all started with me doind some muffler shopping. Thanks for your input!

Weasle :cheers:
Old 03-17-2004, 10:42 PM
  #2  
zwede
Race Director
 
zwede's Avatar
 
Member Since: Sep 1999
Location: Plano TX
Posts: 11,300
Received 333 Likes on 255 Posts

Default Re: Exhaust diameter for my '71 454.... (WeasleVette454)

Factory big-blocks had 2 1/2" pipes. The pipe coming out of the muffler was 2" though.
Old 03-17-2004, 11:14 PM
  #3  
72ls5fla
Drifting
 
72ls5fla's Avatar
 
Member Since: Aug 2003
Location: Fl
Posts: 1,320
Received 11 Likes on 8 Posts

Default Re: Exhaust diameter for my '71 454.... (WeasleVette454)

All LS5 cars came with 2.5 pipe.

There is a guy on ebay selling a complete, front to back with all hangers and GM clamps, original 71 454 4spd welded exhaust system.

It has been on a rack ina garage for nearly 30 years. I saw pics and it looks in GREAT condition!!

He has a starting bid of $100.00.

The link: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEBWA%3AIT

Hope this helps some.

Bill
Old 03-18-2004, 05:58 AM
  #4  
Mr D.
Team Owner

Support Corvetteforum!
 
Mr D.'s Avatar
 
Member Since: Mar 2002
Location: Huntsville AL
Posts: 41,444
Received 1,483 Likes on 1,001 Posts

Default Re: Exhaust diameter for my '71 454.... (72ls5fla)

Would this set also be the same for a 1969???????
Old 03-18-2004, 07:29 AM
  #5  
Tele_Man
Pro
 
Tele_Man's Avatar
 
Member Since: Aug 2002
Location: Southeast WI
Posts: 581
Likes: 0
Received 0 Likes on 0 Posts

Default Re: Exhaust diameter for my '71 454.... (Mr D.)

The '69 had 2" pipes. I went with 2 1/2" when I replaced the exhaust system on my '69 427.

Get notified of new replies

To Exhaust diameter for my '71 454....




Quick Reply: Exhaust diameter for my '71 454....



All times are GMT -4. The time now is 09:28 AM.