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Abbreviations

Please use the following table to find some of the more common abbreviations used across the Walker Exhaust site.

A
A.i.r. air injection reactor
alt altitude
AMC American motors corporation
a.t. automatic transmission
auto automatic
aux. auxillary
a.w.d. all wheel drive
B
B.b.c. bumper to bumper cab
bbl barrel
brkt. bracket
C
calif. california
carb. carburetor
cc cubic centimeters
c.c. commercial chassis
c.f.i. central fuel injection
c.i.d. cubic inch displacement
clmp. clamp
cng compressed natural gas
c.o.e. cab over engine
comm. ch. commercial chassis
conv. converter
cpe. coupe
cu. in. cubic inch
cyl. cylinder
D
dia. diameter
dohc Dual overhad camshaft
dr. door
E
e.f.e. early fuel evaporation
efi electronic fuel injection
eng. engine
exc. except
exh. exhaust
f
fed federal
f.i. fuel injection
flng. flange
f.w.d. front wheel drive
g
gmc general motors corporation
gskt. gasket
g.v.w. gross vehicle weight
h
h.d. heavy duty
hi perf. high performance
hngr. hanger
h.o. high output
h.p. horse power
hyd hydramatic
h5d gm heavy duty emissions
i
i.d. inside diameter
incl. including
inj. injection
insl. insulator
l
l.c.f. low cab forward
limo. limousine
l.h. left hand
m
man. manual
man. tran. manual transmission
mfi multiport fuel injection
m.h.c. motor home chassis
m.t. manual transmission
n
n.a. not available
n.f. not furnished - reuse old flange
no. number
n.r. not required
n.r.a. noise restricted areas
o
o.d. outside diameter
oe original equipment
o.h.v. overhead valve
p
pass. passenger
pkg. package
p.t.o. power take off
r
reg. regular
req. required
r.h. right hand
r.w.d. rear wheel drive
s
s.c. supercharged
s.b.c. school bus chassis
s.d. super duty
sed. sedan
ser. serial
s.m.p.i. sequential multipoint fuel injection
sohc. single overhead camshaft
spec. special
s.p.i. single point injection
s.t. super turbine
sta. wag. Station wagon
std. standard
strp. strap
sub. suburban
t
t.b.i. throttle body injection
t.p.i. tuned port injection
trans. transmission
turbo turbocharger
w
w/ with
w/o without
wag. wagon
w.b. wheel base
w.d. wheel drive