cammednasty

I have an lt4 hotcam in my 94 z and 1.6 roller rockers. I'm getting valve float so I would like to know what valve springs to put in my car. Links are always appreciated. Thank you.

bRock701

iTrader: (1)

What springs are you running now? I would think the LT4 "beehive" springs, but I think they're expensive.

cammednasty

There probably stock, the guy who had it done didn't do it well

FAD2BLK93

Valve float=valve springs. I recomend PAC springs.

cammednasty

How heavy?

xDetroitMetalx

Even the springs in the LT4 kit I hear are garbage. There are many fine upgrades you can go with. Patriot golds and Comp Cam Beehives are fairly common. It's up to you.

trilkb

iTrader: (4)

The Alex's Lt1 spring kit is probably your best bet.

95mysticta

iTrader: (4)

I have a PAC 1518 Beehive spring kit for sale with low miles. Good for .650 lift and will more then handle that hotcam and room to grow if you go bigger down the road. PM me if your interested in a good deal.

cammednasty

I don't want to bend pushrods, just what's needed for an lt4 plus the big rockers

95mysticta

iTrader: (4)

Running your car the way it is very scary. Cammed with stock springs and pushrods WOW! You wont bend pushrods due to valvesprings. However you will bend pushrods with float when the valve smacks the piston cause its flopping around in the chamber as its floating. Considering how cheap a set of pushrods is you are very brave not to just throw a set in there while you have it apart. Its a no brainer to change all of the valvetrain to guarantee it wont fail and cause further damage and more $$$$.

The offer is there for a great set of springs and trying to lend some very helpful advice so you dont do more damage cheaping out that will bite you in the *** down the road and cost you way more then a set of proper pushrods and springs!

cammednasty

I had it tuned it starts floating at 5k rpm so no valves are bent yet

jlpz

iTrader: (8)

My buddy has the crane cam springs on his lt4 set up...I'm running the LT4 springs, but I'm still on the stock cam with 1.6 rockers..If I ever go with a bigger cam i'm going with Pac.

95mysticta

iTrader: (4)

Good luck buddy man i guess you dont need any advice you got it all figured out.

DisasterFormula

iTrader: (1)

Didn't some cars from 93-95 come w/ hardened push rods?

FAD2BLK93

I hope so...if so how would u really know the difference?

95mysticta

iTrader: (4)

So they say but do you really want to take the chance when they are so cheap? Id rather spend the 100 bucks +- on a set of comp pushrods to guarantee they wont bend. You bend pushrods you just trashed your motor but all can be avoided by not skimping out when they are so cheap.

Adam1203

iTrader: (5)

yes some cars came with hardened pushrods. I believe only the 95s did however. I have rebuilt the 95 that is in my camaro and it had then so I checked if they were strait and reused them. They have a small dimple in them where they where checked for the hardening test. The 94 engine going in my 69 corvette that I took apart 4 weeks ago did not have then. Neither did the 96 engine that I did the heads gaskets on for a friend.

DisasterFormula

iTrader: (1)

Someone on here with a 93 had hardened pushrods in his factory engine, I think. Maybe just an odd year thing lol.

lt1-xjs

My '93 had hardened pushrods. You can identify them with the small dot on the side or with a file. The factory ones are only case hardened, I run chromoly ones myself.

cammednasty

i took it apart and the springs were not stock. i had acually bought the same ones that were in there. the problem was that the guy who owned it last put 2 different size valves in it. longer valves means less seated spring pressure and then valve float. i am putting spaces underneath the springs to make more pressure.