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HUG HEH5561BL

HYDRAULIC CAMSHAFT 108º LSA+3

FLAT TAPPET HYDRAULIC / ONE BOLT TIMING GEAR

$160.00

Flat Tappet Hydraulic / One Bolt Timing Gear. Use where rules demand a hydraulic camshaft. 4000rpm stall. 4.56:1 gear, large single plane or 2x4 intake. Stage II or Stage III HP ported heads. 220psi suggested cylinder pressure. Street/Strip for 500ci stroker engines.

 Camshaft Technical Details
Intake Valve Lift 1.5
Exhaust Valve Lift 1.5		 .593"
.606"
Intake Valve Lift 1.6
Exhaust Valve Lift 1.6		 .632"
.646"
Intake Duration at .050"
Exhaust Duration at .050"		 255°
261°
Lobe Separation Angle 108º
Intake Opening at .050"
Exhaust Opening at .050"		 22.5° BTC
61.5° BBC
Intake Closing at .050"
Exhaust Closing at .050"		 52.5° ABC
19.5° ATC
Min. Suggested Cylinder PSI 220
Sweet Spot RPM 3000 - 6200

Note: With any hydraulic camshaft larger than our 1523AL/BL grind, we strongly encourage using adjustable rocker arms. The stock stamped rockers do not have a true 1.5:1 ratio. They will check somewhere between 1.38:1 and 1.45:1 ratio. This will yield a loss of lift (up to .045"), 2°/3° duration loss and also slow the rate-of-lift resulting in a possible 25HP loss. Any camshaft using double valve springs must use adjustable rocker arms to prevent damage when the stock rocker arms break.

Power Ranges: These are the "sweet spot" in the power range. Generally we suggest shifting at 300-500 RPM above the "sweet spot" for the best ET's.

Spring Warning: Our camshafts are not comparable to other manufacturers and require special valve spring pressures to operate and live satisfactorily. ONLY USE springs meeting the specifications listed here or on the provided cam cards. Valve spring pressures and installed heights are supplied with each camshaft.

Caution: Minimum piston-to-valve clearance is .060" intake and .100" exhaust. If your clearance is not adequate, we have tooling to cut deeper valve reliefs. Check our tooling section or call us. Maximum lift with stock guide height is 0.450", more lift requires shortening the valve guides.

 Related Parts:

1510S-16        1.5 Rocker Arm Kit w/Shafts            

1520S-16        1.6 Rocker Arm Kit w/Shafts            

7007                 Cam Bolt & Washer Combo            

3690                 Extreme Pressure Oil Additive        

5003                 Racing Lifter                                

1322                 11/32" Stem 1-Groove Valve Lock    

1332                 11/32" Stem 1-Groove Valve Lock     

1324                 3/8" Stem 1-Groove Valve Lock         

1334                 3/8" Stem 1-Groove Valve Lock       

8342                 Notching Tool Rental                        

3720                 20w50 Race Synthetic Blend Oil           

1270                 10º Valve Spring Retainer                   

1203                 11/32" Valve Spring Retainer              

1256                 3/8" Valve Spring Retainer                     

1107                 Double Valve Spring                       

6427                 1 Bolt Cam, 3 Key Timing Chain Set    

6434                 1 Bolt Cam, 9 Key Timing Chain Set     

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