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: 6,662	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: 6,662	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: 3,254	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



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