HUG HEH3742BL HYDRAULIC CAMSHAFT 108º LSA+3 FLAT TAPPET HYDRAULIC / ONE BOLT TIMING GEAR $160.00
 
Flat Tappet Hydraulic / One Bolt Timing Gear. Serious street and strip: oval track, mud racers. 3.91:1 gears, noticeable idle, 3000rpm stall. High rise dual plane, 3x2 or small single plane intake, headers required. Stage I or II HP ported heads. 170psi suggested cylinder pressure.
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Intake Valve Lift 1.5
Exhaust Valve Lift 1.5 |
.548"
.555" |
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Intake Valve Lift 1.6
Exhaust Valve Lift 1.6 |
.584"
.592" |
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Intake Duration at .050"
Exhaust Duration at .050" |
237°
242° |
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| Lobe Separation Angle |
108º |
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Intake Opening at .050"
Exhaust Opening at .050" |
13.5° BTC
52° BBC |
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Intake Closing at .050"
Exhaust Closing at .050" |
43.5° ABC
10° ATC |
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| Min. Suggested Cylinder PSI |
175 |
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| Sweet Spot RPM |
2300 - 5600 |
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
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5003 Racing Lifter
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1304 3/8" Stem 1-Groove Valve Lock
1332 11/32" Stem 1-Groove Valve Lock
1334 3/8" Stem 1-Groove Valve Lock
3720 20w50 Race Synthetic Blend Oil
1270 10º Valve Spring Retainer
1203 11/32" Valve Spring Retainer
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