Help-Camshaft selection!

[400sbctruck]

Ok, engine is a 400, 5.7 rod with aluminum 64cc heads, 10:1 with dish hypereutectics...Heads port matched, smoothed runners, bowl blend, all the way.
Retro-roller
Looking for something daily driver, good idle and broad torque curve. Hoping to see 400hp, idea here is more head, less cam and good street driveability.

[Jake Wade]

This going in a square? What rear axle ratio? What transmission? Which aluminum heads? Rear tire diameter? I like your vision on this build, give some more info and will tell you what I think.

[400sbctruck]

Heads are summit brand casting, non vortec, performer rpm intake.
In the end 3.42 or 3.5 gear.
Tire size stock 96-98
Trans, 4l60 mild converter. You know, a SlEEPER!!!
Must apologize for posting this in this section/figured i may see some 400 fans here, truck will be 96-98 SWB.

Havent purchased any lifters yet, any road-worthy budget reccomendations appreciated.
Also, i have yet to polish chambers etc, so compression can be tweaked...

Originally Posted by Jake Wade

This going in a square? What rear axle ratio? What transmission? Which aluminum heads? Rear tie diameter? I like your vision on this build, give some more info and will tell you what I think.

[Jake Wade]

I take it your running a carb?

[Jake Wade]

The 400 makes awesome torque. The larger cubes eat up camshaft and what is pretty hot in a 350 is fairly mild in a 400.

For the info provided I would run around a 272 advertised intake duration on a 110 LSA. Here is a Howards cam that should work well:

http://www.summitracing.com/parts/hr...make/chevrolet

Fairly smooth idle with a little exhaust note in a 400. Should provide strong low end and mid range but play out around 5500-5600. Will work good with the 3.42 gears and cruise well at overdrive RPM.

Brodix used to provide Summit with the IK line of heads, just under the Summit name, I assume they still do. They are good heads!

I run this through a DCR calculator with the above mentioned cam and come up with an 8.16 which is what you want to shoot for running pump gas.

A larger camshaft would be in order for a HOT street truck. When you say "good idle" "daily driver" "broad torque curve" I think this cam or one along these lines is what you want and should fit the bill.

[400sbctruck]

Ill look into howards. Will that work well with injection?
Plan is this:
Yank vortec out, use crank trigger& dist substitute flex fuel injectors(32lbs) for the stockers...
Hopefully wind up with benefits of injection and maybe see 16-17 mpg? Letting computer control 4l60 and timing.
Im in the part gathering stage, tearin ebay and salvage yards apart.
Lots of 'fun' staring me in the face:
Setting up perf rpm with injectors, locating roller timing cover with crank sensor mount provisions etc. milling adapter plate for vortec throttle body to intake lol.
Luckily i can do most machining myself, aside from a line hone if needed, which i doubt.

[Jake Wade]

I assumed you were running a carb and a 4L60, not the 4L60E and factory fuel injection.