99 z28 Haas
03-03-2005, 02:51 PM
i replaced the pushrods, rocker arms, and valvesprings in my ls1 and i was wondering if the stock valvesprings come double coiled or not. the ones i took out were double coiled so im wondering if the previous owner already replaced these parts. thanks
97bowtie
03-03-2005, 03:09 PM
AFAIK, all LS1s came from the factory with single coil springs. My '00 had single coils.
Capn Pete
03-04-2005, 12:01 AM
Yeah, the factory springs (even LS6 springs) are the "bee-hive" type, and I'm pretty sure they're just a single coil?:think: If you had dual coil springs in there (and especially if they're not the bee-hive shape) then they're obviously aftermarket. Are you sure that the cam is stock?;) Why else would someone go to the work and expense of changing just the springs?:rolleyes: How about the rockers.....they stock?:confused:
99 z28 Haas
03-08-2005, 02:41 PM
well i know for sure now that the rocker arms arent stock because i changed them but im not sure about before. as of now the pushrods, rocker arms, valvesprings, have been changed. i also have the SLP cold air kit w/ lid. stage 3 spec clutch, magnecor 8.5mm plug wires. i know im up close to 400 hp because ive ran z06's and only been pulled by about halr a car. what im gettin at is do you think im making those numbers off just those mods or is the car also cammed? i had one mechanic that builds race cars listen to my car and tell me it wasnt cammed right off the bat......so im really not sure. how can i find out for sure?
shouldaboughtthez
03-08-2005, 03:03 PM
as of now the pushrods, rocker arms, valvesprings, have been changed. i also have the SLP cold air kit w/ lid. stage 3 spec clutch, magnecor 8.5mm plug wires
If this is all the mods you have done and you are hanging with vettes, you probably got a cam, or you got a beast of a motor.
Donny O
03-09-2005, 07:50 PM
i had one mechanic that builds race cars listen to my car and tell me it wasnt cammed right off the bat......so im really not sure. how can i find out for sure?
this is all jsut my opinion and thoughts on the subject, but he problaby builds old time small blocks and when you put a cam in they get lumpy. there have been a lot of updates in technology and seems the newer motors you can put in a decent cam and make good power and still tune it to be very smooth and almost unnoticable to people listening for the motor to be 'camming'.
example...say a stock ls1 puts out 320HP. take a 75 350 and get it to 320HP...it's problaby gonna be a bit lumpy since stock it put out 175Hp and you almsot doubled it. now you could have jsut put a small cam in it and bumped it from 175 up to 200 and not be real noticable. which would be the same as putting a cam in the ls1 and bumping it up to 350-360Hp maybe....which is a very good gain but still be smooth....you could get 400+ with other mods and still be smooth. or now you bump it up to 400+ with a cam alone and it's gonna get lumpy.
again i'm jsut rambling thoughts out of my head on how I see it.....I havent built an engine to make that kind of HP or have any facts to prove it...jsut done some reading here and there....jsut a half educated rambling.
99 z28 Haas
03-10-2005, 02:29 PM
i see what your sayin.......i could be up around 400 with all the mods i know i have and be mildly cammed. thats what i am coming to think because i cant be showin those kinda numbers without at least a mild cam. im planning on getting a more aggressive cam sometime soon anyways so when i do that ill let yall know exactly what i had in there before. thanks for all the help guys.
Cahill93Z
03-15-2005, 10:27 PM
how about you dyno the car
Bayer-Z28
03-15-2005, 10:39 PM
The stockers are all single coils. If they have a blue mark on them they are the LS6 springs. I believe the LS6 springs are bee-hive. I read an article about it in GMHTP.