Phone 360 985-0445, E-mail Keith@Johnsoncams.com


BSA Pre-Unit Singles

we regret to inform you that we are unable to accept orders for

camshafts or cylinder head services until further notice

Due to a heavy backlog of existing orders

also please note that we are, like most businesse not open for business on weekends or holidays.

our business hours are 9AM to 5PM Pacific Standard Time

we will be glad to let you know when we are again accepting orders

please send an e-mail with your request to be put on our wait list

including what camshaft or service you wish to order

thanks for your interest

11 December 2007

 

BSA_GScams.jpg (21171 bytes)


BSA 2436 Intake Cam
BSA 2438 Exhaust Cam
Circa 1950 ZB Gold Star.
$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .360 105° .002 Flat 282° 39°btdc 63°abdc .018
Exhaust .360 102.5° .004 Flat 282° 65°bbdc 37°atdc .018

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services


BSA 2448 Intake Cam
BSA 2450 Exhaust Cam

DBD Gold Star factory touring cams.
$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .380 105° .006 Flat 295° 42°btdc 73°abdc .018
Exhaust .380 102.55° .008 Flat 295° 70°bbdc 45°atdc .018

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services


BSA 2446 Intake Cam
BSA 2446 Exhaust Cam
DBD Gold Star factory scrambles cams.
$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .404 94.5° .006 Flat 315° 63°btdc 72°abdc .018
Exhaust .404 102.5° .008 Flat 315° 80°bbdc 55°atdc .018

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services


BSA 2442 Intake Cam
BSA 2446 Exhaust Cam
DBD Gold Star factory road racing cams.
$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .441 100° .006 Flat 330° 65°btdc 85°abdc .018
Exhaust .404 102.5° .008 Flat 315° 80°bbdc 55°atdc .018

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services


Johnson 42J1 Intake Cam
Johnson S460 Exhaust Cam
Johnson design for short track, TT and motocross.
$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .444 102° .008 Flat 317°
288°
56°btdc
41°btdc
82°abdc
67°abdc
.018
.040
Exhaust .397 108° .008 Flat 302°
278°
78°bbdc
66°bbdc
44°atdc
32°atdc
.018
.040

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services


Johnson 42J2 Intake Cam
Johnson J460 Exhaust Cam

Johnson design for 1/2 mile, mile, and road racing. Used in the Johnson Cams Gold Star to win the 1999 Sacramento Mile.

$390pr. Lift LCA Lash Tappet Duration Open Close At
Intake .469 102° .008 Flat 325°
297°
60°btdc
46°btdc
85°abdc
70°abdc
.018
.040
Exhaust .413 108° .008 Flat 308°
280°
82°bbdc
68°bbdc
46°atdc
32°atdc
.018
.040

Cam Chart Definitions   Home   FAQ's   Cylinder Head Services