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K5 Blazer Specifications (1969-1979)

K5 Blazer Specifications (1969-1979)

Article/photo's courtesy of
CK5.com
Due to surplus or shortages of components in any given year, some discrepancy may result between model years. Every effort has been given to ensure accuracy, if you notice a discrepancy or have additional information, please contact CK5.

All specifications are for 4x4 Blazers only and do not include 2x4 or GMC Jimmy

(M)=manual transmission (A)=automatic transmission *=see notes


:k5:
Year: 1979
Base Price: 7,373
Wheel Base: 106.5 in.
Length: 184.8 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (130) @ 3800 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Production Total: 90,987
Weight: 4,371
Fuel Tank Capacity: 24-gallon/31-gallon
Height: 73.4 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 305 cid. (130) @ 4000 rpm
OHV Eight-cylinder 350 cid. (165) @ 3600 rpm
OHV Eight-cylinder 400 cid. (185) @ 3600 rpm
Front Axle:
GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
TH400 (2.48:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

GM added a fuel door to the passenger side rear quarter panel, previously, they had external gas caps.


:k5:
Year:: 1978
Base Price: 6,397
Wheel Base: 106.5 in.
Length: 184.8 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (115) @ 3800 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Production Total: 88,858
Weight: 3,928
Fuel Tank Capacity: 20-gallon/31-gallon
Height: 73.4 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 305 cid. (130) @ 4000 rpm
OHV Eight-cylinder 350 cid. (165) @ 3800 rpm
OHV Eight-cylinder 400 cid. (175) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
TH400 (2.48:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
For 1978 the instrument panel trim and nameplate were changed. There was a deluxe instrument panel option with black-textured center section for Custom Deluxe models, and bright brush finish for Cheyennes.

Also new was a redesigned rear compartment entry/exit system, a new rear folding seat, and a flatter floor panel behind the seat for extra leg room. The frame was changed to position the body mounts outside of the frame to allow for the new rear seat design.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.


:k5:
Year:: 1977
Base Price: 5,603
Wheel Base: 106.5 in.
Length: 184.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (110) @ 4800 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Production Total: 86,838
Weight: 4,268
Fuel Tank Capacity: 20-gallon/31-gallon
Width: 71 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 305 cid. (130) @ 4000 rpm
OHV Eight-cylinder 350 cid. (145) @ 3800 rpm
OHV Eight-cylinder 400 cid. (175) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
GM Corporate 10-bolt (8.5-in. 1.28 Axle Dia. 28 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
TH400 (2.48:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
For 1977 there was a restyled eggcrate grille with 15 openings (instead of 32) and dark gray metallic finish (instead of Argent Silver).

A new optional soft-top came in white, black, blue or buckskin.

Blazers featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.


:k5:
Year:: 1976
Base Price: 5,365
Wheel Base: 106.5 in.
Length: 184.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (100) @ 3600 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Production Total: 74,389
Weight: 4,017
Fuel Tank Capacity: 20-gallon/31-gallon
Height: 71 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 305 cid. (130) @ 4000 rpm
OHV Eight-cylinder 350 cid. (160) @ 3800 rpm
OHV Eight-cylinder 400 cid. (175) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
TH400 (2.48:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
A major development of 1976 was a new body design, it featured a steel half-cab with an integral roll bar built into the steel front compartment roof and lock pillar structures.

Available at extra cost was a removable fiberglass-reinforced plastic roof that attached to the pickup box with 16 bolts.


:k5:
Year:: 1975
Base Price: 4,998
Wheel Base: 106.5 in.
Length: 184.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (105) @ 3800 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Production Total: 50,548
Weight: 4,313
Fuel Tank Capacity: 20-gallon/31-gallon
Height: 71 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 350 cid. (160) @ 3800 rpm
OHV Eight-cylinder 400 cid. (175) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
TH400 (2.48:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
No major changes for the 1975 model-year.

Catalytic converters now standard on Blazers (Blazers produced in early 75 may not have catalytic converters).

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.


:k5:
Year:: 1974
Base Price: 3,577
Wheel Base: 106.5 in.
Length: 184.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (100) @ 3600 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
NP203 (2.01:1 Low Range)
Production Total: 56,798
Weight: 3,931
Fuel Tank Capacity: 20-gallon/31-gallon
Height: 71.5 in.
Opt. Engine, (net HP):
OHV Six-cylinder 292 cid. (120) @ 3600 rpm
OHV Eight-cylinder 350 cid. (145) @ 3600 rpm
OHV Eight-cylinder 350 cid. (160) @ 3800 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP205 (1.96:1 Low Range)
Notes:
New was a factory padded roll bar.

The limited-slip differential could be ordered with the full-time four-wheel-drive system.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.


:k5:
Year:: 1973
Base Price: 3,200
Wheel Base: 106.5 in.
Length: 184.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (100) @ 3600 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Dana 20 (2.03:1 Low Range)
Production Total: 44,841
Weight: 3,912
Fuel Tank Capacity: 20-gallon/31-gallon
Height: 71.5 in.
Opt. Engine, (net HP):
OHV Six-cylinder 292 cid. (120) @ 3600 rpm
OHV Eight-cylinder 307 cid. (115) @ 3600 rpm
OHV Eight-cylinder 350 cid. (155) @ 4000 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP203 (2.01:1 Low Range)
Notes:
The 1973 Blazers were radically changed in appearance from previous models. Major styling features consisted of curved side glass, doors that opened into the roof line, and the elimination of roof drip rails. Running along the belt line was a sculptured cove. Along with the very wide and flat load box, it gave the new model very clean and distinctive lines. A wider interior featured a powered, flow-through ventilation system. A redesigned dash, with all instruments and controls placed in a semi-circular cluster within easy reach and view of the driver, was adopted. The steering wheel was reduced in diameter and the wheelbase was lengthed from 104 to 106.5.

The 1973 Blazers had a full-time 4x4 system.

Those with the Cheyenne trim had a chrome circle on the rear fender.

The tailgate came two ways, with the open utility it was like the Fleetside Pickup's gate and when the optional hardtop was ordered, the gate had a manually-operated roll-up window, this eliminated the lift-gate that had been used in older tops.

New energy absorbing steering column.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.


:k5:
Year:: 1972
Base Price: 3,145
Wheel Base: 104 in.
Length: 177.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (110) @ 4000 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Dana 20 (2.03:1 Low Range)
Production Total: 44,266
Weight: 3,677
Fuel Tank Capacity: 23.5-gallon
Height: 68.7 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 307 cid. (135) @ 4000 rpm
OHV Eight-cylinder 350 cid. (175) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP205 (1.96:1 Low Range)

Notes:
Blazer's, looked similar to the previous year's model, except that the border of the grille surround was no longer black-finished.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.


:k5:
Year:: 1971
Base Price: 3,234
Wheel Base: 104 in.
Length: 177.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (110) @ 4000 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Dana 20 (2.03:1 Low Range)
Production Total: 17,220
Weight: 3,677
Fuel Tank Capacity: 23.5-gallon
Height: 68.7 in.
Opt. Engine, (net HP):
OHV Six-cylinder 292 cid. (125) @ 3600 rpm
OHV Eight-cylinder 307 cid. (135) @ 4000 rpm
OHV Eight-cylinder 350 cid. (170) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP205 (1.96:1 Low Range)
Notes:
New, eggcrate grille.

Some sources say that the 4x2 version was introduced this year, although factory records show nearly 1,000 of these were made in model-year 1970.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.


:k5:
Year:: 1970
Base Price: 2,955 (6 cid.) 3,050 (8 cid.)
Wheel Base: 104 in.
Length: 177.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (110) @ 4000 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Dana 20 (2.03:1 Low Range)
Production Total: 11,527
Weight: 3,677 (6 cid.) 3,807 (8 cid.)
Fuel Tank Capacity: 23.5-gallon
Height: 68.7 in.
Opt. Engine, (net HP):
OHV Six-cylinder 292 cid. (125) @ 3600 rpm
OHV Eight-cylinder 307 cid. (135) @ 4000 rpm
OHV Eight-cylinder 350 cid. (170) @ 3600 rpm
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP205 (1.96:1 Low Range)
Notes:
New grill with six groups of silver "dashes" above and below the horizontal aluminum center bar with Chevy's name across it.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

A 4x2 Blazer was produced this year, but less than 1,000 were made.


:k5:
Year: 1969
Base Price: 2,852
Wheel Base: 104 in.
Length: 177.5 in.
Std. Engine, (net HP):
OHV Six-cylinder 250 cid. (110) @ 4000 rpm
Rear Axle:
GM Corporate 12-bolt (8.7/8-in. 1.31 Axle Dia. 30 Spline)
Transmission (M):
SM318/SM326/SM330/T-89A/T-150 3 spd. (2.47-3.50:1 First Gear)
SM465 4 spd. (6.55:1 First Gear)
Transfer Case (M):
NP205 (1.96:1 Low Range)
Dana 20 (2.03:1 Low Range)
Production Total: 4,935
Weight: 2,947
Fuel Tank Capacity: 23.5-gallon
Height: 68.7 in.
Opt. Engine, (net HP):
OHV Eight-cylinder 307 cid. (135) @ 4000 rpm
OHV Eight-cylinder 350 cid. (170) @ 3600 rpm
OHV Eight-cylinder 350 cid. ( )
OHV Eight-cylinder 350 cid. ( )
Front Axle:
Dana 44 (8.5-in. 1.31 Axle Dia. 30 Spline)
Transmission (A):
TH350 (2.52:1 First Gear)
Transfer Case (A):
NP205 (1.96:1 Low Range)
Notes:
First production year for Chevrolet's entry into the expanding 4x4 off-road vehicle field.

An aluminum center piece, in the grille, was embossed with the Chevrolet name, it had integral, rectangular parking lamps at each end, next to its square headlamp housings. A large Chevrolet bow tie was at the front center of the hood.

The Blazer's single-unit body was joined to a heavy channel steel frame and had a completely removable fiberglass top.

Chevrolet production records show a model number and listing for a 4x2 Blazer, but indicate that none were built in this model-year.
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