![]() |
#1 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,058
|
![]()
I'm going to drop the exhaust to install the Hurst shifter and BB C Beam plates,what gaskets will I need at the exhaust collectors?
|
![]() |
![]() |
![]() |
#2 |
![]() Join Date: Jul 2005
Location: Watertown, CT
Posts: 46
|
![]()
The right side is slip on and clamped. The left side is swaged on the rear pipe to mate with the header-cat oversize taper. Behind that swaging is a 3 hole clamp and 3 bolts tighten this clamp with the threaded header-cat flange to snug the joint together. There is no gasket. Most "cat-back" aftermarket exhausts connected the same way but what you find on any particular zr-1 could vary widely.
__________________
1990 #1471 Founding #006 Former Membership Director NCM member Grand Sport registry |
![]() |
![]() |
![]() |
#3 | |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,058
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#4 |
![]() Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
|
![]()
It is 3 bolts into a threaded flange. Prep well wth penetrating oil or you might break one off. Just did mine a few days ago.
H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
![]() |
![]() |
![]() |
#5 |
![]() Join Date: Jul 2005
Location: Watertown, CT
Posts: 46
|
![]()
The flange on the cat is threaded. (Saving a thousand words)
![]()
__________________
1990 #1471 Founding #006 Former Membership Director NCM member Grand Sport registry |
![]() |
![]() |
![]() |
#6 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,058
|
![]() |
![]() |
![]() |
![]() |
#7 |
![]() Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
|
![]()
Not so bad... worst case you drill the bolt out, rethread to next size, buy a new bolt.
H ![]()
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
![]() |
![]() |
![]() |
#8 |
![]() Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
|
![]()
Wasn't a problem on my '91 when I swapped to SW headers and exhaust..
Sent from my XT1585 using ZR-1 Net Registry mobile app |
![]() |
![]() |
![]() |
#9 |
![]() Join Date: Apr 2013
Location: Eastern Missouri
Posts: 773
|
![]()
When I did mine I just put a standard header collector gasket on it. Just for peace of mind...
__________________
[LEFT][SIGPIC][/SIGPIC][/LEFT] [CENTER][COLOR=Indigo][SIZE=4][I][B] **Now Sold** 1990 ZR-1 #2093, Black on Black..[/B][/I][/SIZE][/COLOR][/CENTER] |
![]() |
![]() |
![]() |
#10 |
![]() Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,142
|
![]()
Lately I have been dropping a lot of things; last night it was a tractor!
|
![]() |
![]() |
![]() |
|
|