generaljmwlee
Well-Known Member
can any one tell me what the specs were on the hp 383 cam?
cam specs
- Thread starter generaljmwlee
- Start date
mcmopar
Well-Known Member
Advertised Duration:
268 degrees - intake
284 degrees - exhaust
46 degrees of overlap
.450" lift intake
.455" lift exhaust
268 degrees - intake
284 degrees - exhaust
46 degrees of overlap
.450" lift intake
.455" lift exhaust
mac
What ?
mcmopar
Well-Known Member
Nice find Mac. The older literature always listed the exhaust lift at .455". Then there are other specs like NHRA's that have all kinds of crazy numbers.
The new Purple shaft restoration "road runner" cam has slightly larger timing events on intake and exhaust duration at .050" than the original so it should build a bit more power.
New Purple Shaft "road runner" cam specs from MP:
Intake duration @ .050 = 228 degrees (208 degrees originally)
Exhaust duration @ .050 = 241 degrees (221 degrees originally)
Overlap = 46 degrees - same as original
Intake lift = .450" - same as original
Exhaust lift = .458" - same as original
The new Purple shaft restoration "road runner" cam has slightly larger timing events on intake and exhaust duration at .050" than the original so it should build a bit more power.
New Purple Shaft "road runner" cam specs from MP:
Intake duration @ .050 = 228 degrees (208 degrees originally)
Exhaust duration @ .050 = 241 degrees (221 degrees originally)
Overlap = 46 degrees - same as original
Intake lift = .450" - same as original
Exhaust lift = .458" - same as original
generaljmwlee
Well-Known Member
how do you think a hyd 268/284 dur
450/458 lift will work for a mild build?
450/458 lift will work for a mild build?
mcmopar
Well-Known Member
For a mild street cruiser it would be a nice cam.