460
1948-84 BT
VT No. Year
Grind Timing Duration Valve Lift
Application
@ .053 Shovel Pan
CAMS FOR STREET AND DRAG APPLICATIONS
Stock (Front Cyl.) H/D Cams
-6/46 220
.390 .412 Stock H/D front cylinder timing
44/20 244
.390 .412 Listed for Comparison
Stock (rear cyl.) H/D Cams
14/38 232
.390 .412 Stock H/D front cylinder timing
44/20 244
.390 .412 Listed for Comparison
21/41 242
.405 .425 Mild street; Pans & Shovels, smooth idle more power through
J
R.P.M. range. Bolts in with no head work.
21/43 244
.450 .470 Street/Drags; bolts into Shovels (except some 1980-81) with
A
no head work. More mid-range and high-end power. Idle
smoothness is unaffected.
21/43 244
.450 .470 “A" Intake and long duration exhaust for cooler running and
AB
more high-end power. Both in street cam (except 80-81).
O.K. for Hydraulic Lifters.
26/50 256
.485 .507 Street/Drags; much more mid-range & high-end power. Idle
B
smoothness unaffected. “THE" cam for modified 74/80
inchers and small strokers. Spring spacers required.
24/52 256
.450 .470 Hydraulic version of a “B" cam. Usually a bolt in but spring
BH
spacing may be required on 1980-81 Shovels.
32/56 268
.510 .535 Hotter version of “B" grind. Great street cam especially for
6
84/88 inch strokers; maximum torque available from
2500 to 6500 R.P.M.
37/61 278
.525 .550 Best production cam made for big street engines. Strokers
C
from 84" to 96" will really turn on with this cam. Broad torque
range pulls from 2000 to 7000+ R.P.M.
CAMS FOR LOW COMPRESSION ENGINES
16/36 232
.427 .450 This is the low compression piston version of “A" grind cam
1
for 74 and 80 engines with 7.5 compression ratio pistons.
15/35 230
.490 .512 Low compression piston version of a “B" grind cam. More
2
power through RPM range for engines with 7.5 compression
pistons.
23/43 246
.514 .540 High lift, short duration for motors 84 inches or larger. More
3
power for small strokers with 7.5 compression pistons.
HIGH PERFORMANCE & DRAGSTER CAMS
28/56 264
.590 .210 Street Drags: 88+ in. motors maximum mid-range torque cam
M
3000/6500 RPM. OK for low compression on street. Andrews
springs and collars make installation easy.
32/64 276
.530 .222 Drags: Broad tip design for maximum mid-range power for
9
strokers from 88 inches and larger. Requires Andrews springs
and collars for head set up and installation.
34/70 284
.580 .230 Maximum output dragster cam for BIG motors from 92" & up.
10 70/34 284
.580
This cam is for best torque up to 6500 RPM.
Requires Andrews springs and collars.
36/68 284
.590 .235 Dragster: 88+ cubic inches, 10.5+ pistons light frames.
Z
Maximum high-end power at high RPM. Pulls from 4000 to
75000+ RPM. Andrews springs and collars recommended.
VT No. Year Application
P/N
Duration
Valve Lift Valve Timing
Lift @ TDC
Hydraulic
@ 053
Open/Close
Intake Exhaust Intake Exhaust Intake Exhaust Intake Exhaust
10-5009 78-84 Very good torque & mid-
SHV4000 236 236
.450" .450" 14/42 42/14 .093" .093"
10-5010 70-77 range. Good roll on power.
SHV-4001
10-5011 78-84 Good torque strong mid-
SHV4010 236 236
.485" .485" 14/42 42/14 .093" .093"
10-5012 70-77 range & good roll on power.
SHV-4011
10-5013 78-84 Valve springs needed.
SHV4020 242 242
.485" .485" 17/45 45/17 .103" .103"
10-5014 70-77 Increased midrange over
SHV-4021
10-5015 78-84 Perf. cam. Use with carb,
SHV4030 252 252
.485" .485" 22/50 50/22 .120" .120"
10-5016 70-77 pipes and valve springs.
SHV-4031
10-5017 78-84 Pulls strong all thru power
SHV4040 242 252
.485" .485" 17/45 50/22 .103" .120"
10-5018 70-77 band. Need carb, pipes &
SHV-4041
valve springs.
10-5019 78-84 Hot Street or strip cam in
SHV4050 260 270
.550" .550" 24/56 61/29 .128" .145"
10-5020 70-77 light bike. Must have carb,
SHV-4051
pipes & head work. Pulls
to 7,000 RPM
Competition Cams
