waid786

Looking for some suggestions for a biggest cam with LS6 springs and stock rockers in either a 4.8 (2002) or 5.3 (2001) since I have both! This would be with 4L65e trans with Trailblazer Torque Converter and either 3.73 or 4.10 rear end.

Is there a off-the-shelf cam that would work or I need to get a custom cam (not concerned about mpg or emission) ?

I am sure Comp Cam could hook me up with something but looking for some suggestion here. I was thinking about getting Z06 cam ($280) to save little bit and LS6 springs ($60). Used Z06 cams are even cheaper on eBay. However, I was informed by mrvedit that factory camshaft are "grocery getter". Even the most aggressive has less than 0 degrees overlap at 0.050. This is necessary to meet mileage and EPA requirements. I need to aim for between 0 and 3 degrees overlap at .050. The LS6 cam is NEGATIVE 12 degrees overlap which is a "grocery getter". I need to get a cam with 0 to 3 degrees of overlap, which is much higher than any GM part number and it almost demands a stall with 3000+ rpm or else the engine will bog at low rpm and therefore Trailblazer Torque Converter may not work.

Chevrolet Performance Valve Springs 12499224
http://www.summitracing.com/parts/nal-12499224

Chevrolet Performance LS6 Corvette Camshafts 12565308
http://www.summitracing.com/parts/na...WaAaAtOR8P8HAQ

Thanks

Waid

mrvedit

Glad you are posting because members here know a lot more about cams, valvetrains and specific parts than me.

First you need to specify exactly what your goals and preferences are.
I understood them as the beginning of a limited budget mostly-track car.
Most suggestion of a cam with 0-3 degrees overlap is very, very modest as many mostly-track cars are in the 12-16 degree range, but this always requires a complete upgraded valvetrain.

You should also read the many cam related threads here so that you don't ask the same questions for the 100'th time.

Start by giving us you current goals, future plans, preferences and perhaps a budget and I am confident you will get good advice here.

mark21742

Did you look at the gm asa or hot other gm hot cams?

maybe something in the 224 range might get you where you want to be but I'd step up on the valve springs to something like the PAC or comp 918 beehive springs for piece of mindm

2muchboostNY

iTrader: (8)

^^^Agreed. Though for the price of a new PAC or Comp beehives I would rather go with BTR Duals.....thats just me. Not a huge price difference and I have been a fan of BTR due to the quality of springs. Lunati has a nice Dual Spring Kit for a similar budget.

mrvedit

The ASA cam for LS3 has a whopping 11 degrees of overlap, but only .525 lift which sounds like a cam with relatively gentle slopes that will work fine with single/beehive valve springs.

The hot cam has 0 degrees of overlap and also .525 lift and is therefore much milder and might still work with a stock converter.

Here some good thread comparing them:
https://ls1tech.com/forums/generatio...m-hot-cam.html

http://www.corvetteforum.com/forums/...gt2-3-cam.html

HioSSilver

iTrader: (8)

Grand am cup cam works with those springs I think.

Fry_

Look at either the BTR or cam motion "drop in" truck cams. Anything bigger will likely require more converter to see any real benefit. What does a Trailblazer torque converter flash to maybe the Hot cam would work but it still wouldn't be optimal.

waid786

I am not a cam expert. Which one from BTR or Cam Motion do you recommend with LS6 springs, stock rockers and Trailblazer Converter?

Thanks

Fry_

.....

99Bluz28

iTrader: (35)

IMO, I'd go with the GM Hot Cam,or the BTR Stage III truck cam, with using LS6 valve spring and trailblazer TC. I wouldn't go any large the these 2, as far as intake duration.

waid786

According to BTR:

http://www.briantooleyracing.com/btr...-camshaft.html
BTR TRUCK STAGE III CAMSHAFT
Duration at 050 inch Lift:218 int./224 exh.
Valve Lift with Factory Rocker Arm Ratio:0.553 int./0.553 exh.
Lobe Separation (degrees):113+3

Chevrolet Performance LS6 Corvette Camshafts 12565308
Duration at 050 inch Lift:204 int./218 exh.
Valve Lift with Factory Rocker Arm Ratio:0.550 int./0.550 exh.
Lobe Separation (degrees):117.5

Chevrolet Performance Gen 3 Hot Cam Kits 12480033
Duration at 050 inch Lift:219 int./228 exh.
Valve Lift with Factory Rocker Arm Ratio:0.525 int./0.525 exh
Lobe Separation (degrees):112


The BTR TRUCK STAGE III CAMSHAFT shoulds really good!

Old Geezer

iTrader: (3)

1-800-BTR????:d

99Bluz28

iTrader: (35)

waid786, that video is of the BTR Stage III blower cam which has -.5* overlap, the BTR Truck Stage III has -5* overlap which would be more inline with a 224/224 114 lsa cam.

kelsey_canard

iTrader: (6)

Ive seen a tr220 run with them. Truck has been daily driver for the past 2 year. I would just buy some real valve springs though.

Sales2@Texas-speed

iTrader: (5)

We have a few different truck cams that have made good power with great driveability on a stock converter. Including those that do great with ls6 springs.

Give us a call, we can definitely help you get what you are looking for. If our off the shelf cams are exactly what you need, we can do a custom grind.

Right now we have all our cams on sale for 350.00...

waid786

Ok. Here is what I got.

1995 Mustang GT with 3.27 rear end, 4L65e and will use Trailblazer Torque Converter. May get 3.73 or even 4.10 for the rear end. I want to keep it streetable and take it to the track on weekends.

What specific Texas Speed Cam do you recommend with LS6 springs?

Based on my car project description and combo, what motor (and cam) would you use. The 4.8 or 5.3 (I have both)?

I am trying to keep the cost down since my Falcon project is draining me really bad!

Thanks

Sales2@Texas-speed

iTrader: (5)

For an off the shelf cam that will work with ls6 springs I would run the comp 212/218 .522/.529 114lsa or the ls1 hot cam 219/228 .525/.525 112 LSA. Id personally use the hot cam and the 5.3. I didn't catch exactly what your plans are unless I missed it somewhere, but we could always do something like a low lift 220/224.

bane89

iTrader: (3)

I use a the Howards gm asa cam w/ ls6 springs. Still using the stock rockers and push rods. I was on a budget at the time as well but will be swapping out the springs and push rods within the next 6 months to avoid any issues but so far i have no issues.

waid786

A local yard went out of business and they had lots of LS motor but had only two with 50,000 miles so I bought a 4.8, 5.3 complete pull with wire harness, MAF, ECU and all accessories for $1500 which also included a 4L60e and a 4L65e. Inside the valve cover, the motors were clean!

I am finishing up my 1964 Falcon project but I always wanted something more for the drag strip - nothing to crazy and keep it low budget and build with with my two young boys. I am looking to put the motor in a 1995 Mustang which has a 8.8 rear end with a 3.27 gears. I am leaning toward putting in the 4.8 to abuse around at the track and keep the 5.3 for future project. Even if I don't ever use the 5.3, it is more in demand and will be easy to get my money back.

Waid

codyvette

iTrader: (24)

LS6 springs worked great on my comp. 216°/220° .535" cam. I would be willing to bet that a better set of springs would have made more power up high though.