motor and tranny options - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northeastblazer · 04-03-2003, 04:36 PM

What motors, transmissions, and t-cases were available for the:
69 Blazer 4x4
70 Blazer 4x4
71 Blazer 4x4
72 Blazer 4x4

Thanks.

**CPNE** · 04-03-2003, 04:47 PM

Info for all years unless specifically noted

Engines:
250 six, 307 v8, 350 v8, maybe 292 six.
No big blocks ever factory produced

Trannys:

3 speed manual column shift
4 speed floor shift with granny low
3 Speed automatics 70-72 only

Xfer cases:

Np205 in 70-72 for all trannys except 3 speed manual
Dana's were put behind the 3 speed manuals
In 69, I know trucks had the Rockwell, not sure of Blazers.

I'm sure you'll get other feedback that may contradict this buit thats part of the fun.

1969 GMC · 04-03-2003, 05:30 PM

Check out this link, it should help

http://www.coloradok5.com/specs.shtml

northeastblazer · 04-03-2003, 07:09 PM

Thanks, that link is great.

mrein3 · 04-03-2003, 09:05 PM

Quote:

Originally posted by CPNE

Np205 in 70-72 for all trannys except 3 speed manual
Dana's were put behind the 3 speed manuals
In 69, I know trucks had the Rockwell, not sure of Blazers.

I'm sure you'll get other feedback that may contradict this buit thats part of the fun.

CPNE - Good call. I had a 3-speed manual in my truck in front of a NP205 before I made it a TH350/NP205. I sold the tranny to a board member in Iowa who was intending to put it in his 67-72 that came from the factory with a 3-speed/NP205.

**CPNE** · 04-03-2003, 09:22 PM

Now that you mention it I parted a 72 1/2 ton 4x4 that had a 3 speed manual with an NP205, yet the 71 chassis overhaul manual clearly shows the dana 20 xfer case so it was definately used. Only for Blazer applications from what I was told.

mrein3, is your example from a truck or Blazer?

mrein3 · 04-04-2003, 09:50 AM

The truck it came in originally was a 1971 K10.

04-03-2003, 04:36 PM	#1
northeastblazer Registered User Join Date: Apr 2003 Location: Princeton, NJ and Newton, MA Posts: 22	motor and tranny options What motors, transmissions, and t-cases were available for the: 69 Blazer 4x4 70 Blazer 4x4 71 Blazer 4x4 72 Blazer 4x4 Thanks. __________________ Looking for a 69-72 Blazer...

04-03-2003, 04:47 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Info for all years unless specifically noted Engines: 250 six, 307 v8, 350 v8, maybe 292 six. No big blocks ever factory produced Trannys: 3 speed manual column shift 4 speed floor shift with granny low 3 Speed automatics 70-72 only Xfer cases: Np205 in 70-72 for all trannys except 3 speed manual Dana's were put behind the 3 speed manuals In 69, I know trucks had the Rockwell, not sure of Blazers. I'm sure you'll get other feedback that may contradict this buit thats part of the fun. __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

04-03-2003, 05:30 PM	#3
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Check out this link, it should help http://www.coloradok5.com/specs.shtml __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

04-03-2003, 07:09 PM	#4
northeastblazer Registered User Join Date: Apr 2003 Location: Princeton, NJ and Newton, MA Posts: 22	Thanks, that link is great. __________________ Looking for a 69-72 Blazer...

04-03-2003, 09:22 PM	#6
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,664	Now that you mention it I parted a 72 1/2 ton 4x4 that had a 3 speed manual with an NP205, yet the 71 chassis overhaul manual clearly shows the dana 20 xfer case so it was definately used. Only for Blazer applications from what I was told. mrein3, is your example from a truck or Blazer? __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all Last edited by CPNE; 04-03-2003 at 09:54 PM.

04-04-2003, 09:50 AM	#7
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,253	The truck it came in originally was a 1971 K10. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.