1970 Chevelle Build Sheet

Kansas City, Missouri ~ Section 3 - 25 through 42

Section 3

Box 25: MODEL
The 5-digit Fisher Body style number, either 13637 for a Malibu sport coupe, 13667 for a Malibu convertible, or 13680 for a Malibu pickup.

Box 26: TOP
If the car had a vinyl or convertible top, its color is listed here with a 3-letter code such as BLK on this example with a black vinyl top. Other color are listed as BLU, GLD, GRN, and WHT. If a vinyl or convertible top is not applicable, three hyphens are shown ( --- ).

Box 27: ENG
A 2-letter code for the engine ID is listed here such as TW which is correct for an L34 with automatic transmission and the number 8 meaning 8 cylinders. This should match the engine type (L34/L78/LS5/LS6) and transmission type (manual/automatic) shown in box 107 in section .

Box 28: TRANS.
A 2-character code for the transmission type is listed here and should match the transmission type shown in box 107 in section
CF ~ L34 with M40 automatic transmission
CS ~ LS5 with M40 automatic transmission
CW ~ L78 with M40 automatic transmission
CY ~ LS6 with M40 automatic transmission
WB ~ L34 & L78 with M20 manual transmission
WL ~ L34 & L78 with M21 manual transmission
WO ~ LS5 & LS6 with M22 manual transmission

Box 29: AXLE
A 2-letter code for the rear end ratio and positraction (or open) is listed here and should match the axle RPO code and positraction RPO code (or lack of) in box 107 in section 8. This will vary depending on the engine option as the LS5 and LS6 rear ends were considered heavy duty.
CF ~ L34 Positraction 3.31:1 rear end gear ratio
CW ~ L34 3.31:1 rear end gear ratio
KF ~ L78 Positraction 3.55:1 rear end gear ratio
KK ~ L78 Positraction 4.10:1 rear end gear ratio
RU ~ LS5 & LS6 3.31:1 rear end gear ratio
RV ~ LS5 & LS6 Positraction 3.31:1 rear end gear ratio
RW ~ LS5 & LS6 Positraction 4.10:1 rear end gear ratio

Box 30: ALTERALTER
A 2-letter code for the alternator and will vary depending on the output capacity needed for the particular car.
CW ~ L34 & LS5 without air conditioning
CZ ~ L78 & LS6
KJ ~ LS5 with optional K85 63 AMP DELTRON
NF ~ L34 & LS5 with air conditioning
NJ ~ L34 with optional K85 63 AMP DELTRON

Box 31: ALTER PULLEY
Three hyphens ( --- ) are listed whether air conditioning was installed or not and regardless of engine size.

Box 32: START MOTOR
A 3-digit number is listed and is dependent on the transmission type.
418 ~ manual transmission
430 ~ M40

Box 33: FUEL PUMP
A 3-digit number is listed as is dependent on the engine size.
727 ~ L78 & LS6 through at least 02-13
768 ~ L34 & LS5
768 ~ LS6 beginning 02-13

Box 34: POWER STRG PULLEY
Without power steering two dots ( •• ) are listed.
••  ~ No power steering
CE ~ L34 & LS5 with power steering, without air conditioning
DD ~ L78 & LS6 with power steering
DE ~ L34 & LS5 with power steering, with air conditioning

Box 35: CRANK PULLEY
A 2-letter code is listed here and is dependent on whether power steering and/or air conditioning was ordered.
AA ~ L34 & LS5- 1 groove - without power steering and without air conditioning
AB ~ L78 & LS6 - 2 groove - with or without power steering
AC ~ L34 & LS5 - 3 groove - power steering and/or air conditioning
AD ~ L34 & LS5 - 2 groove - power steering only

Box 36: V BELT GROOVE 1*
A 2-letter code is listed here for the alternator belt and is dependent on power steering and/or air conditioning options.
AE ~ L34 & LS5 without power steering, without air conditioning through at least 03-05
HJ ~ L78 & LS6 with power steering, without air conditioning at least after 11-20
HL ~ L34 & LS5 with power steering and air conditioning
KE ~ without power steering, without air conditioning after at least 03-17
TR ~ L34 & LS5 with power steering, without air conditioning
UZ ~ L78 with power steering, without air conditioning at least to 11-13
YE ~ L78 & LS6 without power steering, without air conditioning

Box 37: V BELT GROOVE 2*
A 2-letter code is listed here for the power steering belt. If power steering was not ordered the box contains 2 dots ( •• ).
••  ~ no power steering
AE ~ L34 & LS5 without air conditioning through at least 02-26
KE ~ L34 & LS5 without air conditioning from at least 03-24
TR ~ L34 &LS5 with air conditioning
YE ~ L78 & LS6

Box 38: V BELT GROOVE 3*
A 2-letter code is listed here for the air conditioning belt.
== ~ no air conditioning
AE ~ L34 & LS5 with power steering through at least 03-11
AF ~ LS5 with power steering through at least 03-31
KE ~ L34 & LS5 from at least 03-11 with power steering

Box 39: V BELT GROOVE 4*
BE ~ L34 with NA9
BG ~ L78 & LS6
BH ~ L34 & LS5 *

Box 40: AIR PUMP & PLUG
-- ~ no A.I.R. pump
S ~ L78 & Ls6

Box 41: AIR PULLEY
-- ~ no A.I.R. pump
DA ~ L78 & LS6 with A.I.R.

Box 42: FUEL GAUGE
A 3-digit code is listed here.
682 ~ L78 & LS6
683 ~ L34, LS5, & LS6 beginning at least 02-16

* Belt routing:
1 ~ Alternator
2 ~ Power Steering Pump
3 ~ Air Conditioning
4 ~ A.I.R. Pump - since KC didn't have A.I.R. on a typical L34 or LS5, it's unclear what these codes are for with these engines.