speedtigger

iTrader: (16)

I thought I would share this out of the Lunati catalog:

LS1 WITH CARB

60519** 2400 - 6800 CAMSHAFT, GM LS VHRX278-08CX 278/282 227/231 .651/.651 108/108

60520** 2800 - 7000 CAMSHAFT, GM LS VHRX286-08CX 286/294 235/243 .651/.651 108/108

60521** 3200 - 7200 CAMSHAFT, GM LS VHRX298-08CX 298/306 247/255 .651/.651 108/108

60522** 3600 - 7500 CAMSHAFT, GM LS VHRX306-08CX 306/314 255/263 .651/.651 108/108

Here is a link to the page:
http://www.lunatipower.com/Media/Doc...0LS%20Cams.pdf

Prorac1

iTrader: (4)

Wow, holy lift. Even on the smaller cams. I wonder what kind of street time you would get out of a set of valve springs with that kind of lift?

speedtigger

iTrader: (16)

No doubt. I sent them an email asking them if they had some beehive lobe profiles that could be substituted.

Prorac1

iTrader: (4)

My rapid motorsports cam came with non behive dual valve springs and retainers. Im curious to see how they hold up with street driving. My lift is just over .600. The only concern I have with beehives around .600 lift are they still a good idea. And what is the limit on beehives. Eric L

1970camaroRS

iTrader: (8)

This one looks like a pretty sweet street-strip cam for a stock shortblock and ported heads.

60520** 2800 - 7000 CAMSHAFT, GM LS VHRX286-08CX 286/294 235/243 .651/.651 108/108

If I wasn't running nitrous, I'd use this cam for sure.

speedtigger

iTrader: (16)

THey have that one available as a nitrous cam too:

60524** 2400 - 7000 CAMSHAFT, GM LS VHRX286-13NX 286/298 235/247 .651/.651 113/111

Prorac1

iTrader: (4)

I will say though, with that lobe seperation and duration flycutting may be required with some of those cams.

LS_10

iTrader: (1)

Nice I just changed my cam to a little bigger than Trex.

flyin

iTrader: (4)

1970camaroRS

iTrader: (8)

I would have to agree. An LQ4 might get by on the smaller ones, but you'd need to flycut or use aftermarket pistons for the rest.

ZONES89RS

iTrader: (25)

Man, i love that first grind and would surely try it, but my 5.3 i would use it in has comp 918s, but the beehives in my 6.0 with the Trex are good for .640 lift.

speedtigger

iTrader: (16)

I like that first grind too, but I would need a <.600" lift lobe profile. I know Lunati has them.

ZONES89RS

iTrader: (25)

Probably, i need to find out because that cam with .590 lift would be great to wake up the low end power in the TA, i used the 114 LSA for a turbo that i did not use.

topbrent

iTrader: (1)

Going from memory, but it seems like I remember seeing a chart showing that the .651 family of cams from Lunati are very big under the curve. There is a page hiding somewhere here on Ls1Tech that shows the .200 numbers and the Lunati lobes are slightly bigger under the curve than the Comp LSL/LSR lobes, which are quite aggressive also.

Here are some of the other Lunati grinds..

dogsballs

anyone tried these yet?

ridnhood

Yep, i have largest one. The second one i have a similar comp, just put it in stock lq4 bottom end with ls3 head 50k gasket and shaved 30k. Plenty of clearance, started up last night.

wildcamaro

iTrader: (15)

Lunati chart lists Ls1 with l92 heads? Must be for stroker applications...

00BlackSS

iTrader: (7)

making the stroke bigger wont clear the valves on a l92 head on a ls1 bore. maybe the mean l92 heads on a ls2 or any 6.0, ie lq4 lq9. Or like i used to have, a resleeved ls1 with a 4.100 bore


So there cams for carbs or for cathedral heads? no options for rectangular heads?

dogsballs

nah, reckon the last two sections are for rectangular port. i thought the valves just just squeeze in the 3.9 bore, the issue being flycuts hit the side of piston and make a weak point. correct me if i'm wrong.

or as you say run a sleeved ls1 or ls2 block.

00BlackSS

iTrader: (7)

l92s wont fit on a bore smaller than 4.00. At my buddys shop (streetnstrip was the guy who had them cut, i believe by wcch. streetnstrip posted the info for ls3s and l92s) we had L92s cut in half, set em on a ls1 and the valves would hit the side of the cylinder wall. you dont need to run a sleeved ls2 block, as its a 4.0 bore, and clears the valves.

off topic, my pistons are mahle power packs that are set up for ls2s, but had to widen the valve reliefs for the big cam.