383vert

iTrader: (4)

Brand new crate engine, gets a little comp 230ish/ high .500 lift cam, new comp 918 beehives. It ran awesome for 3k miles then POOF... Broken valve spring dropped valve...munch...munch... arhhh!

Simple, cam only set-up.... Anyone get the blame? The shop that installed the cam and springs... comp for the springs.... Or the guy with the heavy foot.... Possibly missing a gear and bouncing off the limmiter...

Input... please.

Intercooler2

iTrader: (24)

Just part of performance mods

NVR_SPDS

iTrader: (39)

Sounds familiar, except mine had some miles on em: https://ls1tech.com/forums/generatio...l#post13804872

They shouldnt have let go with that few miles on em though. Maybe setup wrong?

ae13291

iTrader: (8)

i bounce off the limiter all the time for fun. i have the dual gold springs, but can bouncing off the limiter be that bad? i think my rev limiter is set at 6500 or 6550 im not sure.

2slow2flurry-ous

iTrader: (13)

Sheesh I have a similar setup

01ssreda4

iTrader: (96)

Those 918s will be forever plagued IMO.

blue98Z

iTrader: (29)

Interesting. I have the revised 918's in mine goin on about 15k miles maybe. No problems so far. 588/592 lift on cam.

I do agree that they will be forever plagued. Guess I'm one of the lucky ones. Sorry you ran into this problem OP.

mtuggle86

iTrader: (7)

I really don't understand why anyone puts these junk 918 springs in there engine. There supposed to. Be revised yes but you still see people dropping valves from them breaking all the time. I just don't get why people use them when you can get pac 1518 nitrated beehives for 150 at scoggindicky. I've only seen one tread where a pac beehive broke I just don't get why people won't spend the extra 25-50 and be sure they got a good product.

01ssreda4

iTrader: (96)

PAC 1518s are not $150 a set. More like $250.

chevymec

iTrader: (19)

Did the shop measure the pushrod length? Maybe the springs were binding.

mtuggle86

iTrader: (7)

No ni payed 150 plus 18 shipping just last year

MM98

iTrader: (13)

I agree.. Or spend the $ on a good set of duals for the added piece of mind & insurance.. With todays cams & aggressive lobes, I would use nothing but a dual spring.

Damian

iTrader: (89)

Weird. I've never broken a 918, and I've probably installed close to 100 sets since they came out.

But then again, I also check install height/coil bind/etc on most engines. The only time I'll "drop in" a 918 is if it's a mild .540-.550 lift cam.

mtuggle86

iTrader: (7)

If you ask jon from scoggin dicky about the pac 1518 he
Will tell you 150. Also chris at cc performance was selling the 1518s for 150 shipped just a while back check your prices 01redssa4

BaddBird

iTrader: (6)

I gave $189 for my PAC 1518s from SDPC.

BaddBird

iTrader: (6)

I think you mean the Pac 1218s

http://sdparts.com/details/pac-racing/pac1218


http://sdparts.com/details/pac-1518

mtuggle86

iTrader: (7)

No I don't I mean 1518 nitrated beehive spings there gold colored you can get them for 150 just shop around. Just because a vendor has a certain price on there website that doesn't mean the won't go any cheaper on the product if you send them a pm.
I payed 168 shipped for my 1518 springs I bet I still have the pm saved where he qouted me that price if you don't believe me. The 1218 springs where either 100 or 125 plus shipping but I wanted the nitrated springs for extra safety so I went 1518.

01ssreda4

iTrader: (96)

Back when I was spring shopping a couple years ago, 1518s were around 250 while the 1218s were about 150. Guess they have come down in price some.

BaddBird

iTrader: (6)

All I know is what I paid for them last month which was $189. If you got them cheaper then thats great.

BaddBird

iTrader: (6)

I think some of the vendors still sell them for $255.