1.8 rockers
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
1.8 rockers
My brother has a 99 that is stock except for a Blackwing and cats removed. Could he install the Z07 rockers (1.8) without changing his springs? It's an auto shifting at 6200
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
The rockers will accelerate the valves faster. Assuming you have some miles on the car since its a 99, I would swap over to the Z06 springs since they are only $60 or so. Not worth risking it, and not a bad upgrade. The other issue you will have is the pushrods, I would upgrade them as well since the stockers will be under a heavier load.
Racer
Joined: Sep 2004
Posts: 324
Likes: 2
From: Rogersville TN
Originally Posted by BOTTLE FED
My brother has a 99 that is stock except for a Blackwing and cats removed. Could he install the Z07 rockers (1.8) without changing his springs? It's an auto shifting at 6200
