about time someone came out with these. apparently my stock springs bind with my cams.

http://www.jbodyperformance.com/new/PartList.php?catId=18&catName=Valvetrain&subCatId=95&genId=3&genName=3rd%20Generation

You can use the HO valve springs......... I do. Just use your retainers, and the HO 'hats'

or get those....




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

hmm, what diameter are the coils and whats the poundage of the HO springs at max lift in comparison to the JBP valve springs?

sorry to jack the thread, but What are retainers? I'm gonna go get a HO head from the wreakers, is there a specific year i should look for? what is the advantage of using the HO springs?

*bump*

I havethe 2.2 springs. Very nice i must say. I got them because i thought they were the only ones available, but then again, chromemoly steel is the @!#$z. won't break, thats for sure.

It doesn't say the material for he 2.4 springs specifically, but says "high strength steel"

here's a link to some pics of my 2.2 head with the springs


here

nice, but Im wondering about more information about JBP 2.4 springs vs. 2.3 HO springs.

anyone know the part numbers for the HO springs and retainers?

does anyone know the specs on a 2.4 valve spring, what other valve springs are known to fit? oh yeah and what is the part numbers on the HO springs and retainers

im using beretta gtz springs in my head, work great.

Couple questions about the springs you are using.. I might be getting some springs I will find out in about a week if I have to. What part number did you use and are all the 2.3 DOHC springs the same??? does anybody have information on lbs/inch??


HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED

I think the 2.4 springs are rated at 70# on the seat and the HO springs are 85# or 90# on the seat iirc but I don't rember the open pressures for either of them I just know the HO are stiffer and can handle up to .430" lift.


2000 Z24 5spd header & catback for now.

ok so if you buy an aftermarket cam set-up then would it be best to get aftermarket sorings or could you use Ho springs I am trying to figure this out so i know what all to buy.

Iam using HOs with my N/A build should work great iam also running jbp stage 2 cams.

I got my springs from napa. Just ask for any dohc 2.3l quad springs they are all the same. i just asked for beretta gtz springs.