brad8266

iTrader: (23)

How loud should my valetrain be with a 232/236 cam and dual springs? I fired mine up today and damn that valvetrain noise is loud. Kind of sounds like a metallic whiney noise. I guess thats the sewing machine sound everyone talks about.

ShevrolayZ28

iTrader: (4)

Mine is a little like a sewing machine but not what I'd call whiney.

camarokid94

iTrader: (2)

my 233-239 cam was BAD mad all sorst of noise. my 244-248 is much quieter.

mvvette97

iTrader: (18)

my 228/230 sounds like crap. I put new lifters in less than 300 miles ago and it still sounds like crap. No whine but tick tick tick tick

SEDUCE

so how do u fix it?
i got 232/236 cam and it ticks a bit

roosteracer

iTrader: (1)

i just put a 237/242 also tick tick tick...

DAVESS02

iTrader: (30)

I've got a 228/230 XER w/rhoads lifters. Sounds like a solid roller! The thing to pay attention to is how "even" the noise is. If all the lifters sound the same AND you're positive your preload and geometry is correct, I wouldnt worry. A few weeks ago, mine developed an extra loud lifter noise. Discovered that a polylock on a comp magnum had cracked and the entire top of it was off, letting the rocker loosen up. BTW, for you who have these, you might order a couple of extras from comp. No other rocker uses a low profile lock like this, just the LSX's. A trip down to the local speed shop isnt going to get you this 3/8" lock.

vettenuts

iTrader: (4)

I have a full backup set for my Cranes.

My car is quiet as stock, but my cam is smaller than others mentioned above. I am also running the Crane rockers, which some have said quiets down the valve train but I don't have a before and after so I can't comment on that.

magius231

iTrader: (8)

fix it? proper length pushrods

BriancWS6

iTrader: (18)

Mines not bad at all. It's a little louder than stock, but not as loud as alot of peoples. The trick is having the proper pre-load which is acheived with the proper length pushrods.

transaman98

iTrader: (16)

224/230 on XER lobes. I think it is pretty loud but I have never owned a cam car before. I re did my entire valve train including roller rockers(<--kinda think they were a waste, but what the hell!)

hammertime

iTrader: (1)

Your VHP 056 is a 278/286 advertised duration, 216/224 @ .050" and has a ramp rate of 62. Compared to XE rates of 53 and XE-R/LSK at 49, the valves are moving slower off and back onto the seat. Properly adjusted, it should sound like a stocker.

What everyone needs to understand, is you trade much of that quiet operation for performance when you go to aggressive ramps and lobes. Case in point, an LSK cam with those seat durations would spec out to 228/236 115 LSA. Seat overlap doesn't change a bit, but at .050" it jumps 12* from -10 to +2.

brad8266

iTrader: (23)

I went out and started it today and it sounds way better than it did before. Sounds nice and even now. Pushrods are the right length.

JBIRD02

iTrader: (4)

226/236 here, and my valvetrain is very quiet. I'm running 7.425 pushrods

hammertime

iTrader: (1)

Awesome! When does it see the dyno & the track?

orangeapeel

iTrader: (18)

What are the pushrods that you used Brad?