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Dude, you're killing us. Just call Summit or the WS6 store. You won't regret it.
Back in the 70's before car seats for kids, a family friend's four year old son kept reaching for the cigarette lighter in the car. His dad told him "no" twice and swatted the kids hand away. The third time the dad pushed the lighter in and said "You can learn the hard way." The kid reached for the lighter, burned his finger and cried loudly. That solved the kid wanting to play with lighters
Many years later the son had grown into a responsible, hard working, well adjusted, popular, successful young man.
I'll take your advice and stay away from the Chinese stuff.
I'll just run the stock pistons and suck it up on the (1) point of compression, leaving it at 9.5
There are people out there doing 1,000 HP on stock bottom ends (short runs on dynos, but still). I think it'll hold together at 475 (again, crank HP) with OEM stuff, and if it doesn't these things are disposable around here. I picked up the complete motor for $200.00 and they have more available.
450hp out of that cam on a 5.3? Not likely at all especially with stock castings or ported stockers. Youre torque will be non existent also.
Those are vvt pistons. Not sure why no one has caught that yet. They lower your cr more than maybe youd want also.
You want that power and cr cheap? Get a rebuild kit from us and bore to 3.898-3.908. THEN maybe youll get in the low to mid 400s. Otherwise youre chasing you tail and wasting money.
From what ive measured our pistons sit at deck so you gain a little cr there. Flycutt otherwise.
450hp out of that cam on a 5.3? Not likely at all especially with stock castings or ported stockers. Youre torque will be non existent also.
Those are vvt pistons. Not sure why no one has caught that yet. They lower your cr more than maybe youd want also.
You want that power and cr cheap? Get a rebuild kit from us and bore to 3.898-3.908. THEN maybe youll get in the low to mid 400s. Otherwise youre chasing you tail and wasting money.
From what ive measured our pistons sit at deck so you gain a little cr there. Flycutt otherwise.
so i'm to believe that the half-a-dozen builds i've seen with this exact configuration are all wrong ?
perhaps you're talking RWHP, and I'm talking crank? 475 crank is (apparently) easy to hit from what i've seen.
i don't understand why anybody bothers with RWHP. it's a pointless metric with too many variables unaccounted for when people start blathering numbers .. no different than comparing MPG's.
450 crank is flat tops and a very very small cam. Youre going way overboard to try and make that and killing the power below 4k with your cam selection.
450 crank is flat tops and a very very small cam. Youre going way overboard to try and make that and killing the power below 4k with your cam selection.
yah crank, sorry for the confusion !
I'm not too concerned about power below 4k. This is circle track dirt racing and we won't spend much (any ?) time that low. I'm racing against 604 crate motors, some of them cheated-up a bit, to the 480 HP range.
car is very light, 2300 lbs wet *and* with me in it, and we change the rear end gearing to suit conditions for the track.
i like the cam and spring combo packages that summit has now. i was a bit worried that it might be a little too much cam but i've fallen into the "bigger is better, right?" mentality
this is the car it's going in. i'm pulling out the 800 HP open motor and dropping in this budget LS to do some local racing and get a bunch of laps in.
i called comp cams, and the 8702 cam that summit has is fairly close to what they suggested, but at about 1/2 the price. both comp and summit suggested 4* advance on the cam.
carb setup, and i have a 750 race demon carb and a holley single plane mid-rise intake.
thanks for your comments and i'd love to hear your thoughts on cam selection for this application !
That cam is way too big.
Im not sure about the summit line. I know cost is low but they aren't really proven yet vs btr or tsp etc.
I know for a fact all the TSP cam/valvetrain parts are made in the USA and they grind in house. That means alot of to and the customers i talk to.
Id go more for a high 220s mid 230s like our high lift asa cam. Itll still make well over the power you want and give you 6400-6500 or more in a 5.3l and have a much broader powerband and mid range plus bottom end also.
Id definitely bore the setup out to an iron 346 though. For the same price in parts and a little money in machine work youll have the opportunity to make considerably more power if you arent limited by any class rules.
You wouldn't have to worry about using double d vvt pistons either or jumping to a forged set.
That cam is way too big.
Im not sure about the summit line. I know cost is low but they aren't really proven yet vs btr or tsp etc.
I know for a fact all the TSP cam/valvetrain parts are made in the USA and they grind in house. That means alot of to and the customers i talk to.
Id go more for a high 220s mid 230s like our high lift asa cam. Itll still make well over the power you want and give you 6400-6500 or more in a 5.3l and have a much broader powerband and mid range plus bottom end also.
Id definitely bore the setup out to an iron 346 though. For the same price in parts and a little money in machine work youll have the opportunity to make considerably more power if you arent limited by any class rules.
You wouldn't have to worry about using double d vvt pistons either or jumping to a forged set.
Just some options
So I was looking at the wrong notes from my comp cams call, and it's looking like you are right on the high lift ASA cam.
What they had suggested is 224/230 , 581/588 and 109+4
I found a post on this forum that listed these as the specs for your ASA cam, are they correct ?
High lift ASA Cam (226.5/236 .600/.600 110+3)
Also, it looks like I can get a whole kit w/ springs for $515.00 and that's in the budget !
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Just call Summit or the WS6 store. You won't regret it. 
