Pontiac Mechanical Flat Tappet Camshaft
In stock
SKU
60310
Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Performance level 3 - Pro-Street - High revving, super mid to top end power grind.
INT/EXH - Dur @ .050” Lift: 240°/248° RR: 1.5/1.5 Gross Lift: .477”/.501” LSA: 112° RPM: 2800 to 6000 Redline: 6500
Performance level 3 - Pro-Street - High revving, super mid to top end power grind.
INT/EXH - Dur @ .050” Lift: 240°/248° RR: 1.5/1.5 Gross Lift: .477”/.501” LSA: 112° RPM: 2800 to 6000 Redline: 6500
$242.01
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Part Number
60310
Engine Make
Pontiac
Year
1955-1981
Part Class
Camshaft
Camshaft Name
Pro-Street
Camshaft Series
Pro-Street
Engine Type
V8
Engine Size
287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Product Type
Mechanical Flat Tappet
Valve Lash
.022" intake and .024" exhaust
Lobe center
112
Advertised Duration: Intake / Exhaust
284/288
Duration @ .050" Lift: Intake / Exhaust
240/248
Lobe Lift: Intake / Exhaust
.318/.334
Rocker Ratio: Intake / Exhaust
1.5/1.5
Gross Valve Lift: Intake / Exhaust
.477/.501
CID
389
Performance Level
3
Low RPM
2800
Peak HP
6000
Redline
6500
Performance Description
High revving, super mid to top end power grind.
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.
CID #2
455
Performance Level 2
3
Performance Description 2
High revving, super mid to top end power grind.
Engine Application 2
Level 3 camshafts are designed for moderately modified engines. Intended for performance hot street/strip and performance marine applications.
Recommended Modifications 2
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
284FDP
Recommended Kit #1
84360
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