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Crane Cams 104225

PowerMax Hydraulic Roller Tappet Camshaft Only Lift: .438" /.452" Duration: 264°/270° RPM Range: 1600-5200 C.A.R.B. Approved*

Crane Cams 104225

271-104225

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Crane Cams 104225 PowerMax Hydraulic Roller Tappet Camshaft Only Lift: .438" /.452" Duration: 264°/270° RPM Range: 1600-5200 C.A.R.B. Approved* $457.98
PowerMax Hydraulic Roller Tappet Camshaft Only
Lift: .438''/.452''
Duration: 264°/270°
RPM Range: 1600-5200
C.A.R.B. Approved*

Crane Cams 104225 Details

Chevy 305/350ci (5.0/5.7L) Small Block 1987-92

Crane PowerMax emissions legal cams produce amazing increases in torque, horsepower and throttle response while extending the rpm powerband of computer controlled performance passengers cars and light trucks. PowerMax Emissions cams also permit full function of stock engine control computers. Plus, they work great with aftermarket performance chips.

*Note: 50-State Legal. This camshaft has been granted a California Air Resources Board (CARB) exemption (an ''EO'' number), or is a direct or consolidated replacement part. It is 50-state legal, per the manufacturer's application guide.

**Note: Beginning in 1987, most of the V-6 and V-8 engines were equipped with hydraulic roller camshafts. There are differences in the block to accommodate a cam retention thrust plate and the anti-rotation mechanism for the lifters. These blocks are identifiable by bolt holes for a cam retention plate under the upper timing sprocket, as well as bosses and tapped holes in the lifter valley for lifter retention hardware. The camshafts on these engines have a step nose and smaller bolt circle on the front of the cam. An earlier model camshaft may be used in these blocks by using the appropriate timing chain set and adding a thrust button when using a roller cam.
1988-99 Chevrolet 305 and 350 V-8 engines (and some 1987 350 V-8 engines) use a different configuration camshaft core than the 1955-87 engines and cannot be interchanged.

FOR MID AND UPPER RPM PERFORMANCE IN 1988-89 305 ENGINES W/5-SPEED AND 3.45 OR NUMERICALLY HIGHER REAR GEAR RATIOS. ADJUSTABLE FUEL PRESSURE REGULATOR IS RECOMMENDED FOR MAXIMUM PERFORMANCE (50 STATE LEGAL FOR LISTED APPS, C.A.R.B. E.O. D-225-22)

Grind Number: 2031
Operating Range:1600-5200 RPM
Duration Advertised:264° Intake / 270° Exhaust
Duration @ .050'' Lift:208° Intake / 214° Exhaust
Valve Lift w/1.5 Rockers:.438'' Intake / .452'' Exhaust
Lobe Separation Angle:112°
Max Lift Angle:107° ATDC Intake / 117° BTDC Exhaust
Open/Close @.050'' Cam Lift:Intake - (3°) ATDC (opens) / 31° ABDC (closes)
Exhaust - 44° BBDC (opens) / (10°) BTDC (closes)

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