Third Generation F-Body Message Boards

TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Diameter of factory valve springs?

Thread Tools
 
Search this Thread
 
Old Jun 25, 2005 | 07:32 PM
Share
  #1  
OUTATIME GTA's Avatar
OUTATIME GTA
Thread Starter
Moderator
25 Year Member
iTrader: (2)
 
Joined: May 2001
Posts: 5,244
Likes: 14
From: Sac, CA
Car: '89 GTA
Axle/Gears: 3.27/9-bolt
Diameter of factory valve springs?
Which of these two Comp. springs would be the best to go with to replace the stockers?
Not sure what the factory diameter is.
I'm putting 1.6 Comp. roller rockers at the same time too.

981-16 Diameter 1.254
or
983-16 Diameter 1.250
Reply
0
Old Jun 25, 2005 | 09:59 PM
Share
  #2  
Vader's Avatar
Vader
Moderator
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2000
Posts: 19,677
Likes: 314
Stock springs are listed at 1.25", but frequently measure slightly less than that. The seats are supposed to be machined for 1.25" springs, however.
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
[WI] 91 LS1 Camaro Z28 - 30k Miles - TKO 5 speed
deracer
Camaros for Sale
3
Apr 11, 2016 12:04 AM
Accidently bent closed valve with mallot.
Cameeeero
Tech / General Engine
22
Sep 18, 2015 04:00 PM
More HP on a budget
gta90
TPI
40
Sep 15, 2015 04:00 PM
crane cam 2032 and edelbroc heads 60859
SLNTSCPE
Tech / General Engine
3
Aug 22, 2015 09:15 PM
Which valve springs for LT4 hotcam on 083 heads?
1988iroc350tpi
Tech / General Engine
8
Aug 14, 2015 07:52 PM
Tags
Back to Subforum
TPI
View Next Unread
bad injector?




Advanced Search

All times are GMT -5. The time now is 07:34 AM.