Pontiac Mechanical Flat Tappet Camshaft
Out of stock
SKU
60311
Pontiac - 287, 301, 316, 341, 350, 370, 389, 400, 421 & 455
Performance level 4 - Pro-Street - Super upper mid-range and top end power profile.
INT/EXH - Dur @ .050” Lift: 247°/252° RR: 1.5/1.5 Gross Lift: .505”/.517” LSA: 112° RPM: 3000 to 6500 Redline: 7000
Performance level 4 - Pro-Street - Super upper mid-range and top end power profile.
INT/EXH - Dur @ .050” Lift: 247°/252° RR: 1.5/1.5 Gross Lift: .505”/.517” LSA: 112° RPM: 3000 to 6500 Redline: 7000
$242.01
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Part Number
60311
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
292/302
Duration @ .050" Lift: Intake / Exhaust
247/252
Lobe Lift: Intake / Exhaust
.337/.345
Rocker Ratio: Intake / Exhaust
1.5/1.5
Gross Valve Lift: Intake / Exhaust
.505/.517
CID
389
Performance Level
4
Low RPM
3000
Peak HP
6500
Redline
7000
Performance Description
Super upper mid-range and top end power profile.
Engine Application
Level 4 camshafts are designed for heavily modified engines. They have a definate lope at idle and are best suited for dual purpose hot street/drag strip, hot marine and oval track applications.
Recommended Modifications
Headers, dual exhaust, large cfm carburetor, performance ignition and increased compression of 10.25:1 and above is required. Cylinder head modifications would be beneficial. Use with automatic transmission with high stall torque converter or manual transmission. Close attention to proper ring and pinion gear set and tire diameter is imperative.
CID #2
455
Performance Level 2
4
Performance Description 2
Super upper mid-range and top end power profile.
Engine Application 2
Level 4 camshafts are designed for heavily modified engines. They have a definate lope at idle and are best suited for dual purpose hot street/drag strip, hot marine and oval track applications.
Recommended Modifications 2
Headers, dual exhaust, large cfm carburetor, performance ignition and increased compression of 10.25:1 and above is required. Cylinder head modifications would be beneficial. Use with automatic transmission with high stall torque converter or manual transmission. Close attention to proper ring and pinion gear set and tire diameter is imperative.
Grind Number
292FDP
Recommended Kit #1
84360
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