BatmobileWS6

Im going with the G5X3 cam and Patriot LS6 ported heads.
My question is what specs should I go on the heads with this cam? cc's, intake and exhaust valves?

Also, Im getting a oil pump, timming chain, dual springs, pushrods and gaskets...anything else I need?
Thanks

JRracing

iTrader: (35)

Ask patriot. They will tell you how much milling you can do. Or call LG. Get good springs. Don't be skimpy there. It looks like you know what else you need.

BatmobileWS6

Yeah I plan on calling patriot tomorrow.
Im going with the patriot upgraded dual springs.

BatmobileWS6

I talked to patriot and they said...
I could go with the 64cc 202 intake 157 exhaust lift and 'should' be ok. Or to be safe go with the stock 200 intake 155 exhaust lift.
My main worry is pistion to valve clearance. Would I need flycutting/milling? What specs should I go with on the heads?

MorePowerPlease

I have the Lg x3, with stock heads and there isn't a whole lot of room left. I think you can go with the bigger valves. but I wouldn't mill if you don't want to flycut.

I'm curious why Patriot wouldn't know the exact answer, instead of "should be o.k."??

BatmobileWS6

Well I think because of the fact that LG doesn't give the exact spec on the cam duration...it's just 2XX/2XX.
Im leaning toward the stock valve size of the ls6. So basically it would just be stock, ported? Is this worthwhile?

lilbuddy1587

iTrader: (1)

234/242

Dmoney

iTrader: (22)

If you want the best out of your heads and the G5X3, you need 2.02 and 1.57 valves, mill the heads to .030 (59cc), cut valve reliefs, and get you some Cometic .040 headgaskets. That's what LG recomends.......

01Z0H6

iTrader: (63)

I am running the G5X3 in my stalled A4... along with bolt on's, LS6 heads ( unported) LG actually built my motor.. no flycutting and i am get 403rwhp/405rwtq out of my Auto. Took it on a long trip the other day and actually got 21 mpg!! drove it 312 miles on a tank of fuel.. NO BS!!

Mine is daily driven.. it is an awesome cam... i hope to do AFR 205's sometime in the near future...

Good luck, you will absoluetly love that G5X3..

PREDATOR-Z

X3 will only fit on stock valve unmilled 243s with stock gasket.

Now by LS6 if you mean "LS6 Style" like 6.0, a 2.02/1.57 valved unit "might" clear. But will it be safe, that is another story.
The wise advice would be measure PTV. I'm not an advocate of running less than .07/.09 on street setups, even that is what I consider tight.

BatmobileWS6

Is this a sure, safe bet?
I don't want to get into milling and all that though...

I also dont want any problems, and would rather be safe than sorry.
But, is it really worth while to the patriot "ls6 style" heads at stock valve size? How much will I gain with the stock size valves?
What do you mean by running .07/.09?

BatmobileWS6

I've also been reading how the 243 casting is better than the "ls6 style."
Basically, is there any recomendations on what exact heads and specs to go with and work with the G5X3 around or under $1500.

N4cer

iTrader: (11)

I'm pretty fondle of my setup.

BatmobileWS6

What is the specs on your heads?

N4cer

iTrader: (11)

LS6 heads milled .030". Stock valves. Flycut pistons.

Dmoney

iTrader: (22)

I ran LG Stage II LS6 heads with 2.02/1.57 milled .030 with valve reliefs, cometic .040, 7.350 pushrods with a G5X2.........

PREDATOR-Z

You could do it this way for clearance without flycutting (cutting eyebrows in pistons).
Patriot LS6 "style" heads, actualy 6.0 casting, with welded 59cc chambers and 2.00/1.55 valves and stock MLS gasket.
That will fit and you still benefit from 59cc chambers and raise in compression.

BatmobileWS6

Well I think im going to go with the 2.00/1.55 to avoid problems. What will be the difference between that size and 2.02/1.57??

PREDATOR-Z

5 cfm (+/-)

BatmobileWS6

Will this be noticable? And worth the ~1200$ plus install?