4RE ETR

REV Dual Valve Springs, 1.25" OD (For stock spring pocket) Must use with 54-SC221 Hardened Seats & 54-TR9814 Titanium Retainers

Just curious if these are a better way to go over the Comp 918's for a lift of about .56x. If they are do they just drop right in?
Thanks,
J.

I8COBRA

iTrader: (56)

I'm using REV 1116 dual valve springs. No head machining work was needed.

Mitch

I am also running the Rev 1116 Dual Springs. No machining was needed, so far no problems. I have put about 2000 miles on my car with the springs and 5 runs at the drag strip.

<small>[ April 02, 2003, 12:13 AM: Message edited by: Mitch ]</small>

robertbartsch

i bought these but have not installed them yet. i assume you also bought the new valve seals since they do not come with the new hardened seats.

DERTY

I've installed a set of these on a car with a .581 lift. Very nice setup, fit in the pockets nicely. You will likely want to get new stem seals. You could reuse the ones that you pull off, but just to be on the safe side just pick some up and replace them. You can see pictures of the install off my website under the C5 Cam Swap.

FinalTA

iTrader: (1)

Derty--

Your C5 cam swap page isnt working right...FYI

xaon

iTrader: (12)

REV 1116 dual springs with West Coast Cylinder Head's Titanium Retainers/Hardened seats. I used new valve seals and did not have to do any machining/modifying to make them work. 7000 hard miles and 3-4 harder trips to the track on the current set. Using 224/.581/112 cam here.

I plan on going back with another set of these springs in 3-5 months when I freshen the valvetrain up. Maybe a bit more aggressive cam.

JBsC5

Whats the downside to using rev 1116 springs?

compared to 918's?

Why don't more people chose the rev 1116 dual springs ?

If its cost? how much more expensive would it be than 918's?

Is it noise? Is it performance or durability issues?

Is it tougher to install to the exacting standards with the heads on the car?

What about timing chain? Is that something to do? if so how much more is something like that and is that a good idea?


Thanks in advance.

JB

<small>[ April 02, 2003, 10:25 PM: Message edited by: JBsC5 ]</small>

DERTY

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by FinalTA:
<strong> Derty--

Your C5 cam swap page isnt working right...FYI </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It's fixed now. Sorry about that.

J'sRamAir

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by JBsC5:
<strong>What about timing chain? Is that something to do? if so how much more is something like that and is that a good idea?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'll let someone else comment on 918s vs 1116s (I have a set of REV 1116s myself), but a good timing chain is always a good idea with a cam swap. Rollmaster is a very good, cheap chain...I have one of them too. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

xaon: Are the West Coast Cylinder Heads retainers the same ones that A&A Corvette sells, or are those different?

<small>[ April 03, 2003, 08:05 AM: Message edited by: J'sRamAir ]</small>

Richard@WCCH

iTrader: (3)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Whats the downside to using rev 1116 springs?

compared to 918's?

Why don't more people chose the rev 1116 dual springs ?

If its cost? how much more expensive would it be than 918's?

Is it noise? Is it performance or durability issues?

Is it tougher to install to the exacting standards with the heads on the car?

What about timing chain? Is that something to do? if so how much more is something like that and is that a good idea?


Thanks in advance.

JB
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Not sure about a downside as there are quite a few using the REV 1116 springs. They cost about the same as the Comp 918 springs. Some customers have logged over 35000 miles so far without fail. Our spring kit is designed to install on stock heads without measuring anything. The kit can be installed without removing the heads and can easily handle cams with .600"+ lift.
I strongly recommend installing a new heavy duty timing chain during the cam install. The chain sets range from $140 to $180 depending on which set you use.

Good luck,
Richard <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

xaon

iTrader: (12)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by J'sRamAir:
<strong>xaon: Are the West Coast Cylinder Heads retainers the same ones that A&A Corvette sells, or are those different? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Same ones that A&A Sells, I purchased mine from A&A.

Not really sure on the downsides between the REV's and the 918's. Though there is some added peace of mind (in my case at least) with the REV's.

I would most definately upgrade the timing chain. I went with a rollmaster double roller in my car.

Also, the REV 1116's are the only recommended springs for the big (240 @.050, .609" lift) G5X-2 cam on stock heads from LG Motorsports.

bigSS

I have the REV duals for my G5X1.

For a cam as you stated (.56x) lift, i'm sure the 918s would do the job just fine.

MNSS

Im running the revs for about six months now with thunders 224 561 112 cam. Have about 6000 miles on them and approximately 20-25 passes. There a great spring and I have had no problems. There a guy up here in minnesota who is running them on a ASA road race motor that lives at 6500 rpm and he stands behind them too.

JBsC5

Thanks guys...I believe the rev 1116 dual spring gives you added safety and costs and installs just about the same as the 918's. Its not a harder install..it doesn't rob any power and lasts just as long between maintaince intervals

Why wouldn't everyone use the dual rev 1116?

Is it harder on the drivetrain? Does it make more noise?

I don't get it. It seems it would be a slam dunk to buy just for the fact you don't have to worry about spring breakage...(having in the past been the one weak link to cam installs with other springs)

Thanks for the advice on both the cam/spring/timing chain choices.

DERTY

I thought the REV was a nice setup. However just like the 918 there have been some small instances of broken REV's as well. Overall it's going to be a nice setup.

Larry

iTrader: (4)

What are the specs on each of these springs. Seat load @ height, load at lift, spring rate, coil bind height?

J'sRamAir

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Larry:
<strong> What are the specs on each of these springs. Seat load @ height, load at lift, spring rate, coil bind height? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Here you go: https://ls1tech.com/ubb/cgi-bin/ulti...;f=41;t=006940

FAST99Z

Will these dual springs work on my Agostino stage 2 heads? I bought the heads about two years ago and most double springs wont fit without machining. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

Richard@WCCH

iTrader: (3)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> Will these dual springs work on my Agostino stage 2 heads? I bought the heads about two years ago and most double springs wont fit without machining. </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The REV dual springs will fit into all LS1 heads. Deciding to use them depends on your cam choice.

Good luck,
Richard <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

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