Cam for Big Twin - AB Camshaft

More power in the mid and high range for road and drag bikes. These cams work with solid or hydraulic tappets, and idle remains stable up to 6,000 rpm with original springs.
Computer-designed cams precision-ground from alloy steel on Landis CNC grinders.
Manufactured in the USA
Check spring shrinkage, valve clearance and valve-to-piston clearance
On engines from '77 onwards, the camshaft sprocket, pinion and breather valve bore diameter was modified. These components are not interchangeable with earlier versions unless replaced as a set. Post-'77 gear kits are identified by a circular machined groove on the outer face of the camshaft sprocket.
Direct-fit street camshaft with long-duration 'A' intake and exhaust for cooler running and increased high-rpm power.
Suitable for hydraulic tappets.



Specifications


Brand
ANDREWS


Supplier reference
212310


Application
Exhaust, Intake


Intake closure
50°


Exhaust Clamp
26°


Intake duration
244°


Exhaust duration
256°


Intake valve lift
Shovel: 0.450" Pan: 0.470"


Intake valve lift at TDC
Shovel: 0.156" Pan: 0.164"


Exhaust valve lift
Shovel: 0.450" Pan: 0.470"


Exhaust valve lift at TDC
Shovel: 0.142" Pan: 0.150"


Product name
Cam


Type
Equipment


Units
Unit


Open intake valve
21°


Open Exhaust Valve
43°


Version
AB