moregrip

iTrader: (8)

that's looking closer to what I'm going for.....just wish the lift numbers were a little higher

TIM Z

iTrader: (12)

LOL i knew you would understand

I think your Hemi would sound good with a lil chopy chop chop.

AKlowriderZ71

iTrader: (22)

Higher ratio rocker arms? If they are available, of course.

With a valve that large, not sure if it's even necessary though.

1slow01Z71

iTrader: (36)

I like the stock LS3 cam or the one Roger recommended. These big port heads suck down low, you dont need to lose any more low end with a larger cam. I hate the L92 heads so much Im swapping to ported 243s to bump my CR and get better low lift flow numbers and will end up with a cam very close to what Roger recommended. These heavy trucks used as heavy trucks need low lift velocity and big port heads have a difficult time with that. I know with your truck beinga hemi you dont have the option of a smaller port head so Id be very careful with going too big on the duration. I like ROgers idea of higher ratio rockers if they make them. Quicker off the seat will net better low flow numbers.

moregrip

iTrader: (8)

that's my point brother.....I want to keep duration down but up the lift....thoughts?

1slow01Z71

iTrader: (36)

Sounds like a recipe for success to me

yurs78

I haven't seen a better NA dyno graph period, there are better peak numbers out there but no one has posted a better under the curve.

Here is the PT thread I found it in:

https://www.performancetrucks.net/fo...ild-up-470269/

Here's the LS1 link:

https://ls1tech.com/forums/dynamomet...p-446rwtq.html

almost 425 lbft @ 2500 rpm at the crank is impressive, especially with it peaking over 540 hp.

"The cam is a 223/231 .610/.617 113LSA +4 advance using Comp LSL lobes and Patriot Extreme dual valve springs. As you can see, the combo worked amazingly well...."

Area47

i'll take the l92's if you don't want em

1slow01Z71

iTrader: (36)

Sure, 400 plus shipping

1994Vmax

iTrader: (4)

Your valve sizes are correct but your are almost a point low on compression. The Eagle 5.7's are 10.5:1, it's the pre 09 5.7's that are 9.6:1.

Probably wouldn't hurt to correct that with your cam spec guys.