specs on 1979 corvette engine?? - Chevy Nova Forum
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Old 13th-October-2010, 08:38 AM   #1
nova-hatch

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specs on 1979 corvette engine??

does anyone know where i can get the specs on a 1979 corvette engine. i just bought on and it's in good shape but i was wondering what the compression was, hp #'s and all that good stuff. before i decide if i want to rebuild it or not for my nova..
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Old 13th-October-2010, 09:07 AM   #2
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if

its an L48 .,,, its a warmed over standard 350

L82 did have 2.02 valves and a lil bit more cam

this was a sad time for SBC's IMO,,,

L82 cam specs ,, looks pretty close to the L79 hyd cam
http://paceperformance.com/index.asp...D&ProdID=30579

very dated stuff ,,, a cam swap would do wonders for it

some L82 facts
L82
Years: 1973–1980

The 1973–1974 L82 was a "performance" version of the 350 producing 250 hp (186 kW) and 285 lbft (386 Nm) from 9:1 compression. It was down to 205 hp (153 kW) and 255 lbft (346 Nm) for 1975. It was the optional engine again in 1976–1977, producing 5 hp (4 kW) more. The 1978 L82 recovered somewhat, producing 220 hp (164 kW) and 260 lbft (353 Nm), and then 5 hp (4 kW) and 10 lbft (14 Nm) more for 1979. 1980 saw yet another 10 hp (7 kW) and 15 lbft (20 Nm).

headers , a " straight up " or 4 degrees advanced timing chain set , a modern cam & lifters , rpm intake , 750-770 vs carb , i bet it would be around 350 hp

Last edited by levisnteeshirt; 13th-October-2010 at 09:14 AM.
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Old 13th-October-2010, 09:33 AM   #3
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hopfully it's and l82 but what about the l48.. specs on that are ?? also how can i tell the diferance and thanks for your help..
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Old 13th-October-2010, 11:15 AM   #4
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An L-82 has the ribbed aluminum valve covers and aluminum intake. I think it made about 240 hp.

If it has the blue valve covers it's the L-48 which is nothing special at all. It could be a Caprice engine that they are telling you is a "Corvette" engine to get a higher price. Oldest trick in the book.
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Old 13th-October-2010, 11:38 AM   #5
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the L82 had forged crank, Forged flat tops pistons, 202/160 valves, screwin studs and guide plates... the intake on a 1979 L82 is not worth throwing away performance wise.. however to a restorer may hold different....

the L48 was a plain jane 2 bolt 350 194/150 valaves, pressin studs, cast pistons and crank....
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Old 13th-October-2010, 04:47 PM   #6
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ok it's an l82, becouse it has the aluminum parts.. what kinda power should i expect from it with headers, geardrive, edelbrock intake and a good ignition setup..
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Old 13th-October-2010, 05:08 PM   #7
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aluminum parts that dont make it a L82......you have to pull a valve cover, and the pan.. from there you would be able to tell if it has the forged pistons, 4 bolt main and screwin studs and guide plates...
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Old 13th-October-2010, 05:10 PM   #8
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Quote:
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what kinda power should i expect from it with headers, geardrive, edelbrock intake and a good ignition setup..
read post#2 again
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Old 13th-October-2010, 05:49 PM   #9
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isnt the l82 the only engine with the aluminum intake and v-covers.. i mean it aint never been apart, came from an all origional 90,000 mile corvette that the guy put a big block in.. thanks
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Old 13th-October-2010, 06:14 PM   #10
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aaahhhh putting valve covers and a aluminum intake on a sbc is next to easy... there is only 2 ways to be sure its a L82... one is to remove the pan and valve covers, the other is to match the block serial number to the car and read the plaque behind the shifter on the vet....

the Plaque will state L48 or L82.. but you have to match the serial number as well..... we have all experienced the never been a part engine.... you cant go on looks alone..... the engine is 31 years old...the car passed through how many hands? only one way to tell what ya got.. and that is to verify 100%.. at this point its speculation by appearances
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