[tyoneal]

I am replacing a solid roller with a hydraulic cam in an effort to gain enough vacuum to run an a/c. Would like to keep as much power as possible.

The Engine

400 ci Bowtie Block
JE pistons
Callies crank
Howards rods
Brodix Track 1 Aluminum Heads (Ported)
Stainless Shaft Mounted Rockers rockers (Crower)
Crower Cam, Solid Roller, It is a symmetrical grind.
Duration at 0.050" is 252 degrees,
advertised duration is 285 degrees.
Lift at the lobe is .388,
intake side, lift at the valve is 0.621",
exhaust lift at the valve is 0.582".
Compression 10.5:1
Rockers, 1:6 intake, 1:5 Exhaust
lifters, are pressure oil-fed units

About 550 hp

Great Power from 3000 to 6500

Revs limited to 6500

Rear Gear 3.90:1

Tremec 500 5 speed

Cam Recommended By Crower
Crower Camshaft Specification Card
Part Number/Work Order Number 00403
Engine Application 262-400 CHEVY
Grind Number 224HR232

ADVERTISED CAMSHAFT SPECIFICATIONS:
INTAKE:
Duration: 286º
Lift: 0.552
Clearence Hot: 0

EXHAUST:
Duration: 294º
Lift: 0.540
Clearence Hot: 0

The specifications listed above are based on a rockerarm ratio of
1.6 IN
1.5 EX
RECOMMENDED VALVE SPRING INFORMATION:
Part # 68390-3
Single
Dual X
Triple
Approximate spring pressure:
valve closed: 110/120 LBS.
valve open: 340/350 LBS.
The information below is for degreeing cam only. Correct only at .050" tappet lift.

INTAKE

Opens: 3.0 BTDC
Closes: 43.0 ABDC

EXHAUST

Opens: 56.0 BBDC
Closes: 0.0 ATDC

LOBE SEPERATION

114º

Duration at .050"

Intake: 226
Exhaust: 236

LOBE LIFT

Intake: 0.346
Exhaust: 0.360

If using "Lobe Center" method of degreeing, cam should be installed on an intake centerline of: 110º
NOTES:

Should make Great Power from 2700-6200 RPM



Cams damaged by excessive spring pressure, over shimming, valve train bind or retainers contacting the guides are void from warranty. Refer to the "Important Camshaft and Lift Information" booklet included with each new Crower camshaft to avoid any break-in problems.
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If Possible, could I get some insight on how well this cam will satisfy my expectations?

Has anyone used this specific Cam?

How would you expect this Cam to behave on the street?

How well would you expect this Cam to Make Power?

Any guess on actual Power Output?

Multiple thoughts would be greatly appreciated.

Thanks,

Ty