1.8 rockers: step inside
Thread Starter
Abby Normal
Joined: Dec 2001
Posts: 53,244
Likes: 92
From: Press "2" for English
1.8 rockers: step inside
i'm thinking about this as the last mod to the engine (with the possible exception of a magnacharger way, way down the road). the engine is a warranty replacement '04 LS1 and the car currently has a halltech induction from the throttle body forward. it also has long tube headers and full cat back exhaust.
i have been told all '01 and up LS1s came with the LS6 intake so i guess i'd be o.k. there.
will the 1.8 rockers give me spring problems on stock heads? any machining issues with these rockers? what about fuel issues? need larger injectors or maybe just a little higher pressure? is the stock ignition up to the task?
i don't have any intentions of going with cam/heads but i wouldn't mind a little more bump, hence the 1.8s.
the only other mod i'm planning to tie it all together is 4.10s to make use of it all.
i have been told all '01 and up LS1s came with the LS6 intake so i guess i'd be o.k. there.
will the 1.8 rockers give me spring problems on stock heads? any machining issues with these rockers? what about fuel issues? need larger injectors or maybe just a little higher pressure? is the stock ignition up to the task?
i don't have any intentions of going with cam/heads but i wouldn't mind a little more bump, hence the 1.8s.
the only other mod i'm planning to tie it all together is 4.10s to make use of it all.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Originally Posted by clutchdust
i'm thinking about this as the last mod to the engine (with the possible exception of a magnacharger way, way down the road). the engine is a warranty replacement '04 LS1 and the car currently has a halltech induction from the throttle body forward. it also has long tube headers and full cat back exhaust.
i have been told all '01 and up LS1s came with the LS6 intake so i guess i'd be o.k. there.
will the 1.8 rockers give me spring problems on stock heads? any machining issues with these rockers?.
i have been told all '01 and up LS1s came with the LS6 intake so i guess i'd be o.k. there.
will the 1.8 rockers give me spring problems on stock heads? any machining issues with these rockers?.
Originally Posted by clutchdust
what about fuel issues? need larger injectors or maybe just a little higher pressure?
Originally Posted by clutchdust
is the stock ignition up to the task?
Safety Car
Joined: May 2003
Posts: 3,814
Likes: 105
From: Dearborn Heights Michigan
I have Jesel 1.8's in my 2000. Had to clear a bit in the valve covers for clearance. Definitely need heavy duty springs with Titanium keepers and hardened pushrods No need for bigger injectors. should Dyno Tune
also.
Fred
also.
Fred
Premium Supporting Vendor
Joined: Mar 2001
Posts: 5,241
Likes: 21
From: Knoxville Tennessee
If you are just using the stock cam, you will probably make just as much additional power by sending me your 200 bucks.
You will probably spend double that for any aftermarket setup.
Save the rocker money and put a cam in the car. Just changing the rockers will probably give you more of a headache than power.
But, your money... your time.
You will probably spend double that for any aftermarket setup.
Save the rocker money and put a cam in the car. Just changing the rockers will probably give you more of a headache than power.
But, your money... your time.
