496 Build and opinions welcomed
 

Building a 496 for my 71 Malibu to replace the 350 small block. Here's what I have so far:

Mark IV 454 2 bolt block
496 rotating assembly:
Scat 9000 4.25 crank
Scat 6.385 rods
Forged Wyseco +20cc pistons
Weiand Stealth Oval Port Intake Manifold
New oil pump, pickup, and stroker clearanced pan with trap door
Lunati retrofit hydraulic roller lifters

I planning using the Brodix Race Rite 270 oval port heads. Still saving some cash for that though. So, the obvious question. What cam? It will be a hydraulic roller. This is not a car that will spend any measurable time at the track, so having good vacuum and drivability is more important than ET's. I'm willing to leave a little on the table. I know I can get a custom cam from Straub, but I'd rater spend $300 for an off the shelf cam vs $600 for custom cam if I can. Not ruling it out, but I know there are guys out there who can give real life experience recommendations.

My car:
1971 Malibu, 3.55 gears in a 12 bolt, Turbo 350, I will get a torque converter with the stall required for the completed setup.

I have been looking at these two cams, what do you all think?

https://www.lunatipower.com/Product....d=2156&gid=289
Retro-Fit Hydraulic Roller Cam. High performance street cam. Likes upgraded intake, carb and exhaust. Needs 2800 RPM stall converter in most cases. Requires 9.5:1 compression for maximum performance.
•Advertised Duration (Int/Exh): 282/290
•Duration @ .050 (Int/Exh): 231/239
•Gross Valve Lift (Int/Exh): .600/.600
•LSA/ICL: 110/106
•Valve Lash (Int/Exh): Hyd/Hyd
•RPM Range: 2200-5800

http://www.herbertcams.com/240-250-d...0lc-2000-6200/
RPM Range: 2000-6200

Advertised Duration: 295/305

Duration @ .050: 240/250

Lift: .570/.570

Lobe Center: 110c


Big Block Chevrolet V8 67-93 396-402-427-454

BB Chevy Hydraulic Roller Cam- Strong mid-range power. Stall or manual. At least 9.5:1. Moderate idle.

I have no clue but maybe WildBill or one of the other more knowledgeable folks will jump in.

Straub offers the "shelf" Clay Smith legend series camshafts. Mike Jones - camking on TC also offers custom cams for well under $600.

JMHO

I was checking out one of the clay smith cams also, think it was called the "old School".

That's the one. I helped a good friend put together a SBC for his project. We used one of those shelf cams after talking with Chris Straub. It sounds awesome, has great road manners, and makes plenty of power.

I have a custom cam spec'd by Kurt @ Bullet Cams. No data yet, progress on my car has been at a standstill since April.

Have you tried the CamQuest website from Comp cams? It's a great tool for selecting a camshaft.

http://www.camquest.com/

Thanks for the link!

I think the Lunati is a better cam for you.