L-48 or L82 in 1973-75 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Gregski** · 08-31-2014, 05:53 AM

Newb question so please be gentle. According to the Wiki the 5.7 SBC 350 was available in two variants during the 1973-75 years

L-48 Years: 1967–1980
L82 Years: 1973–1980

So which one would I expect to find in a C10 1/2 ton pick up if it was stock?

Thank you,
Greg

JJLT1 · 08-31-2014, 10:24 AM

welcome Greg
there was a lot more than 2 versions of the 350..
the L48 and L82 were vett and SS, Z28 motors..
http://en.wikipedia.org/wiki/Chevrol...l-block_engine

get the casting and suffix numbers off the block. heres a link
http://www.crankshaftcoalition.com/w..._Chevy_engines
http://67-72chevytrucks.com/vboard/s...d.php?t=353538

**Gregski** · 08-31-2014, 03:54 PM

Quote:

Originally Posted by JJLT1

welcome Greg
there was a lot more than 2 versions of the 350..
the L48 and L82 were vett and SS, Z28 motors..

Correct, but from what I can see the others on the Wiki page don't overlap the 1973 to 1975 truck years, that's why I am asking here, cause this is where Chebby knowledge comes from, hee hee

meatwagon83 · 08-31-2014, 11:00 AM

i was gonna say, niether, those are vette motors, but on craigslist they are ALL vette motors

RandyP · 08-31-2014, 02:45 PM

Ain't that the truth.

Billy81 · 08-31-2014, 03:42 PM

Quote:

Originally Posted by RandyP

Ain't that the truth.

X2

JJLT1 · 08-31-2014, 04:28 PM

oh they did not put a date on there,
this is probably more normal

Quote:

L65
The 2bbl carburetor 145HP version of the LM1 350".

LM1
The LM1 is the base 5.7 L (350 cu in) with a 4-barrel carburetor (usually with a Rochester Quadrajet) 155-175 hp engine in passenger cars until 1988.

and don't forget the 400 sbc from 70 to 80.. and lots of trucks got big blocks..

Quote:

The 400 was rated at 245–265 horsepower (gross[150–180 HP net]) through its life. The 400 saw extensive use in full-size Chevrolet and GMC trucks; K5 Blazer/Jimmy, 1/2-ton, 3/4-ton, 1-ton, and even larger 'medium duty' trucks had an option to be equipped with a 400.

JJLT1 · 08-31-2014, 04:40 PM

heres another page also
http://www.chuckschevytruckpages.com/enginespecs.html

**Gregski** · 09-06-2014, 12:47 AM

Quote:

Originally Posted by JJLT1

heres another page also
http://www.chuckschevytruckpages.com/enginespecs.html

That's a cool page, but it doesn't have any C10's on it looks like all 4x4s

Rollo McFlurry · 08-31-2014, 07:17 PM

I prefer an L88

meatwagon83 · 08-31-2014, 11:14 PM

Quote:

Originally Posted by Rollo McFlurry

I prefer an L88

thats an unstreetable 427!

russgt · 09-01-2014, 09:35 PM

LS6 is my favorite

Keith Seymore · 09-01-2014, 10:04 PM

Take a look in the generic info packets from the GM Heritage Center archives:

1973: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

1974: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

1975: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

Those will show conclusively (no guesswork).

K

**Gregski** · 09-06-2014, 12:51 AM

Quote:

Originally Posted by Keith Seymore

Take a look in the generic info packets from the GM Heritage Center archives:

1973: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

1974: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

1975: https://www.gmheritagecenter.com/doc...olet-Truck.pdf

Those will show conclusively (no guesswork).

K

KEITH YOU ARE MONEY BABY!!! Spot on just what I was looking for and so much more, thank you and thank you everybody.

Interesting no 350 small blocks in '73 in the C10, yet all Craigslisters have em, LOL (lots can happen in 41 years)

JJLT1 · 09-06-2014, 08:13 AM

350 may not have been the standard in the 73 C10, but it was a big option..

08-31-2014, 05:53 AM	#1
Gregski Post Whore Join Date: Aug 2014 Location: Sacramento, CA Posts: 10,863	L-48 or L82 in 1973-75 Newb question so please be gentle. According to the Wiki the 5.7 SBC 350 was available in two variants during the 1973-75 years L-48 Years: 1967–1980 L82 Years: 1973–1980 So which one would I expect to find in a C10 1/2 ton pick up if it was stock? Thank you, Greg

08-31-2014, 10:24 AM	#2
JJLT1 Registered User Join Date: Sep 2009 Location: South of HoustonTX. Posts: 148	Re: L-48 or L82 in 1973-75 welcome Greg there was a lot more than 2 versions of the 350.. the L48 and L82 were vett and SS, Z28 motors.. http://en.wikipedia.org/wiki/Chevrol...l-block_engine get the casting and suffix numbers off the block. heres a link http://www.crankshaftcoalition.com/w..._Chevy_engines http://67-72chevytrucks.com/vboard/s...d.php?t=353538 __________________ JJ 71 SWB 360 Th400 4.56

08-31-2014, 11:00 AM	#4
meatwagon83 Registered User Join Date: Dec 2012 Location: Preble county ohio Posts: 1,914	Re: L-48 or L82 in 1973-75 i was gonna say, niether, those are vette motors, but on craigslist they are ALL vette motors __________________ "DON'T TOUCH THE TRIM!!"-Early Kyler

08-31-2014, 02:45 PM	#5
RandyP Getting Old; Going Broke Join Date: Apr 2010 Location: Owasso OK Posts: 2,764	Re: L-48 or L82 in 1973-75 Ain't that the truth. __________________ *Why is every used 350 sbc out of a corvette?* There's only two things that excite a man, expensive toys and real expensive toys. *VEGETARIAN: That's an old Indian word meaning "I don't hunt so good."* When the going gets tough, switch to power tools.

08-31-2014, 04:40 PM	#8
JJLT1 Registered User Join Date: Sep 2009 Location: South of HoustonTX. Posts: 148	Re: L-48 or L82 in 1973-75 heres another page also http://www.chuckschevytruckpages.com/enginespecs.html __________________ JJ 71 SWB 360 Th400 4.56

08-31-2014, 07:17 PM	#10
Rollo McFlurry Registered User Join Date: Dec 2012 Location: Hanston, KS Posts: 94	Re: L-48 or L82 in 1973-75 I prefer an L88

09-01-2014, 09:35 PM	#12
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: L-48 or L82 in 1973-75 LS6 is my favorite __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

09-01-2014, 10:04 PM	#13
Keith Seymore Registered User Join Date: May 2009 Location: Motor City Posts: 9,226	Re: L-48 or L82 in 1973-75 Take a look in the generic info packets from the GM Heritage Center archives: 1973: https://www.gmheritagecenter.com/doc...olet-Truck.pdf 1974: https://www.gmheritagecenter.com/doc...olet-Truck.pdf 1975: https://www.gmheritagecenter.com/doc...olet-Truck.pdf Those will show conclusively (no guesswork). K __________________ Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

09-06-2014, 08:13 AM	#15
JJLT1 Registered User Join Date: Sep 2009 Location: South of HoustonTX. Posts: 148	Re: L-48 or L82 in 1973-75 350 may not have been the standard in the 73 C10, but it was a big option.. __________________ JJ 71 SWB 360 Th400 4.56



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