Breze84

Not a C6 but motor is a LS7/LS3 love child... Looking to change the cam in my C5Z, Something a little more towards max effort for my setup but still streetable... Talked to a couple different shops and bounced off what others were saying and I would like to see what others think...

My build setup now is

*Forged Pistons, Rods, Crank LS7 427ci 4.125 Block 11.25:1
*CNC L92/LS3 heads with Del West 2.17/1.6 Valves "5 Angle Valve Job" 279cc Ports, 96cc Exhaust, 67cc Chambers. These heads flowed 356cfm @ .700 on a 4.04 Bore, With a 4.125 they are closer to 365-370 on a 4.125
*Current CamComp 3 bolt Cam 234/240 .597 .608 112 LSA Smaller End Medium Size Cam
*ARH 1 7/8 Headers
* Ported LS3 Intake and LS2 TB

Trans:
*RPM Stage 6 4L65 With a PI Triple disk 3200 Converter

I know my Converter is a bit tight and I am willing to re-stall it to say a 3800 depending on cam if needed...

LG says my build can stand to gain probably 70hp with one of their G7X2/3 ect cams which is a max effort but they would like to see me run a larger converter...

BTR Says they think the best cam for my setup is their "LS3 NA Stage 4 Cam" 233/250 .619 .595 113+5 lsa which would allow me to keep my converter and PSI .625 springs. Basically pulling the cam only and changing.

Texas Speed didnt like the cam BTR suggested and says they dont understand why shops use such a huge overlap and that cam is small. He suggested something in the lines of a 247/255 .629 .629 112+3. Says they like to see larger cube motors inake in the 24x range minimum...

Anyone have any insight on the subject, Just looking to maximize my setup as much as possible. Car is primarily street driven with 1/4 track duty...

Thanks...

C6smackdown

I would pick BTR over TSP 100% of the time. I have run both. The level of experience in cam design is no comparison.

0Billy@MTI

Give me a call. When can custom design a camshaft for your engine at a great price. That way you don't have to pick out an "off the shelf" cam. While a shelf cam is ok, it is a lot like using a mail order tune. There will always be room left on the table for more power. And we can help you gain that.

Steve Haefner

I assume you talked to Chris at BTR, and I assume your version of streetable is different than the guy with a stock converter.

I love BTR cams, check out this idle video of the LS3 Stage IV in my LS3 at the moment!



That cam from BTR is rock solid, or consider 297LRR HR14 (Comp shelf grind) - I JUST bought this for my DART 427 (Brodix LS7 heads) build I'm doing this winter. With the 1.8 rocker ratio, the lift on this cam is .660 lift 247 263 .624 .624 114+3