malibutwins

iTrader: (1)

I have a XER287HR comp cam I am putting in a lq9 with 243 heads Comp doesn't show what springs to use with this cam. any help would be great. Also if i run this cam straight up will I have enough piston to valve clearance?
Cam specs are 605/609 238/240 on a 112 lca. Oh and what lifters?

02*C5

iTrader: (1)

My cam is a bit bigger over all same LSA and I am running comp 921s. On new stock LS1/LS6 lifters got them from Gaterman Products $100.

teke184

iTrader: (5)

comp 921s should do the trick no prob.

you can use stock retainers or go aftermarket if you want a little lighter valve train...and lighter wallet

SOMbitch

iTrader: (8)

You have a myriad of choices.. Just make sure they can handle your lift and are set at the proper installed height. That is just as important as choosing a well matched spring...

Lifters- Morels ar Lunati are awesome but on a budget LS7's will work just fine.

Jason 98 TA

iTrader: (4)

The all new PRC valve springs are a ground up replacement to the gold/platinum spring kits that's been around for several years. The PRC .650" spring kit will easily handle what your looking to do & was designed to provide a longer spring life & resist losing spring pressure. The spring kit is priced well under $300 & offers springs, titanium retainers, seats & seals.

If your wanting to go single springs & don't mind changing springs more often, you might checkout the PAC single springs. We sell them as a package with free new valve seals for $150!!

http://www.texas-speed.com/shop/item...=1064&catid=48

.650" kit
http://www.texas-speed.com/shop/item...d=173&catid=48

SweetS10V8

iTrader: (4)

26926s is what I would put on mine if I had that cam. I dont think I would run any single beehive type of spring on that much duration.

People think Im crazy for running 918s on my 219/235 .607/.621 cam, and I wouldnt run them on anything much bigger..

malibutwins

iTrader: (1)

I would like a spring set that needs no machining

99blancoSS

iTrader: (115)

http://estore.websitepros.com/2120533/Detail.bok?no=62
Set of PAC 1518's will do the job, direct drop in replacments, some people prefer doubles, but they require a seat and seal change. You have the PAC 1221 and 1521 if your looking to go with doubles as welll as the PRC's and Patriot golds.

Wicked94Z

iTrader: (26)

its not the duration that determines spring requirements, its the lobe profile

SweetS10V8

iTrader: (4)

If you want to be technical, its the system as a whole that determines spring requirments and setup.

And very few of us have he ability to test on a spintron, so we generalize based off of experience.

I would still go with a set of 925s or 926s and add the tool steel retainer.

malibutwins

iTrader: (1)

Why not titanium? Also what stall should I have for this cam? It's in a 5500lb truck with a small 150hp shot. Right now I have a circle d 245mm 2c.

cam

iTrader: (9)

Patriot golds and LS7 lifters

malibutwins

iTrader: (1)

Ok here is what I would like to go with..... Dual springs with titanium retainers that needs no machining. Looks like patriot gold kit FTW!!!!!!

malibutwins

iTrader: (1)

What pt # 8401 or 8401-b ? What part number for a 243 head?

223HAWK

iTrader: (11)

Patriot golds simple as that.. Good product..awsome service..

SweetS10V8

iTrader: (4)

Because Titanium wears away and is more expencive, tool steel retainers are typically within 2-3g of Titanium and dont wear.

I weighed my tool steel retainers and they were within a gram of the Ti.

hymey

Patriot extremes would work nice, 155 pound seat pressure and take 660 lift plus very light retainer and good locks. Full kit for like $275. Throw a new set in every 15000 miles.