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Oldsmobile Hydraulic Flat Tappet Camshaft

In stock
SKU
56270
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Oldsmobile - 260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Performance level 3 - Hi-Draulic Hauler - Lope at idle. Hot street/strip cam with strong mid-range power
INT/EXH - Dur @ .050” Lift: 228°/238° RR: 1.6/1.6 Gross Lift: .464”/.482” LSA: 108° RPM: 2500 to 6500 Redline: 6500
$239.76
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Part Number
56270
Engine Make
Oldsmobile
Year
1967-up
Part Class
Camshaft
Camshaft Name
Hi-Draulic Hauler
Camshaft Series
Hi-Draulic Hauler
Engine Type
V8
Engine Size
260, 307 (5.0L,) 350 (5.7L), 400, 403, 425 & 455 (39° bank angle)
Product Type
Hydraulic Flat Tappet
Valve Lash
.000" intake and .000" exhaust
Lobe center
108
Advertised Duration: Intake / Exhaust
288/298
Duration @ .050" Lift: Intake / Exhaust
228/238
Lobe Lift: Intake / Exhaust
.290/.301
Rocker Ratio: Intake / Exhaust
1.6/1.6
Gross Valve Lift: Intake / Exhaust
.464/.482
CID
400
Performance Level
3
Low RPM
2500
Peak HP
6500
Redline
7000
Performance Description
Lope at idle. Hot street/strip cam with strong mid-range power
Engine Application
Level 3 camshafts are designed for moderately modified engines. Intended for performance hot street/strip and performance marine applications.
Recommended Modifications
These higher lift and longer duration camshafts demand close attention to rear end gearing and tire diameter combinations. The secret here is to pick a ring and pinion gear set and tire diameter that keeps the engine in its optimum rpm power range. Automatic transmissions with an aftermarket high stall torque converter and manual transmissions. Headers, dual exhaust, larger than stack carburetor, performance manifold and increased compression (9.5:1 to 10.5:1) are required. Mild porting and larger valves will improve performance.
Grind Number
284HDP
Recommended Kit #1
84157
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