Stock Valve springs or?
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Supreme Member
Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
Stock Valve springs or?
Hi
Found some springs in a abox in my garage, and I cant remember if its the stock ones or the TPIS 700-132 I bought in -98?
Anyone have any dimensions or pictures of stock valve springs frpm a 350TPI -89 ?
Spings I have are double.
OD 1.25"
ID 0.8" inner spring
Height no load 2"
Found some springs in a abox in my garage, and I cant remember if its the stock ones or the TPIS 700-132 I bought in -98?
Anyone have any dimensions or pictures of stock valve springs frpm a 350TPI -89 ?
Spings I have are double.
OD 1.25"
ID 0.8" inner spring
Height no load 2"
Supreme Member
Joined: Sep 1999
Posts: 7,072
Likes: 13
From: Philly, PA
Re: Stock Valve springs or?
Can't tell much just by looking at them- there are too many differences that can't be seen by eye. I use a spring tester when it doubt. Take them to a local machine shop and have them do a quick check for you. At 1.70" a stock spring will be about 70 lbs. A typical performance oriented spring of the same diameter will be more like ~100 lbs.
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