20 year old, never run LS-7 on ebay.
#1
Senior Member since 1492
Thread Starter
20 year old, never run LS-7 on ebay.
#2
Race Director
One hell of a engine. I already have one. Basically it`s a 454 equalivant to an 427 L88 with the exception of aluminum heads and full floating rods. It will damn near eat everything in it`s stock form. Guaranteed a 11 second piece. If I had a E Bay account, I would go after it. I bought mine 16 years ago for $2,600.00. One very rare engine worth every pennie. Why should I say this, hell I`m going to call him. bye
#4
Racer
Ls7 454
Tape your doors shut. As heres an engine that most any stock single carb 502 and some bigger pieces, that will blow your doors off. One nasty bitchen engine.
Last edited by gofastvette; 02-26-2005 at 01:48 AM.
#7
Burning Brakes
Member Since: Dec 2003
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Originally Posted by Jughead
One day Len, One day!
#8
Senior Member since 1492
Thread Starter
Originally Posted by Ironcross
One very rare engine worth every pennie. Why should I say this, hell I`m going to call him. bye
My wife would strangle me.
#9
Le Mans Master
Originally Posted by Jughead
My wife would strangle me.
What would you do with two big blocks? Twin engines maybe ?
#10
Senior Member since 1492
Thread Starter
Originally Posted by Bangkok Dean
Good Morning Jughead
What would you do with two big blocks? Twin engines maybe ?
What would you do with two big blocks? Twin engines maybe ?
Two chrome bumpers. I'm trying to wear my wife down.
#12
Senior Member since 1492
Thread Starter
Originally Posted by Bangkok Dean
Good Morning Jughead
I didn't miss that one. Slept in a little today.
#13
Team Owner
100+ octane? What do you think the CR is? Looks like you would need to add an intake and carb... what else? red paint? New ZO6 engine is 427 ci "LS7" isn't it? 20 yrs is only back to 1985. I would prefer an engine from 1971.... price right now ($3200) is cheap compared to a new crate engine.
#14
Hey. only a couple of other GM engines come to mind when comparing this "gem" LS-7. One is the 427 Z-L1 (try & find one of those) & the other is a BB "Merlin Motor" (one of the "baddest" kick-*** street engines around).
But look at it this way............if U don't have one of these "killers", you'll save a ton of money & time (as in paying tickets & spending time in the "slammer")
But look at it this way............if U don't have one of these "killers", you'll save a ton of money & time (as in paying tickets & spending time in the "slammer")
#15
Drifting
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St. Jude Donor '05
Guys, if I remember right from my big block days the LS-7 I had was an aluminum head engine. This engine is only a LS-6.
LS-7s had Aluminum heads and these appear to be heavy metal. jim
LS-7s had Aluminum heads and these appear to be heavy metal. jim
#17
Senior Member since 1492
Thread Starter
Originally Posted by PROSOUTH
Guys, if I remember right from my big block days the LS-7 I had was an aluminum head engine. This engine is only a LS-6.
LS-7s had Aluminum heads and these appear to be heavy metal. jim
LS-7s had Aluminum heads and these appear to be heavy metal. jim
I think you're correct. I just thought they were painted.
In 1970, Chevrolet increased the size of the Mark IV big block to 454 cubic inches, and released yet another legendary big-block engine. The LS-6 454 was certainly the most potent big block available to the average enthusiast. Most of the other “special” big blocks were built in very small runs, and in many cases the local Chevy dealer didn’t even know they existed. Everyone, however, knew about the LS-6. A forged steel crank spun in 4-bolt mains. Heavy-duty connecting rods featuring 7/16” bolts were connected to forged, domed pistons yielding an 11.25:1 compression ratio. Rectangular port cast-iron heads with 2.19” intake and 1.88” exhaust valves were topped with an aluminum intake and Holley carb. The intake used was a low-profile unit, which certainly cost some horsepower but allowed the engine to be installed in the Corvette with its very low hood line. The mechanical camshaft was the same piece used in the 396/375-horse and 427/435-horse engines. Power production of the LS-6 was 450-horsepower, which gives the beast the distinction of being the most powerful Chevrolet engine installed in a production model (at least according to factory ratings). Although initially earmarked for the Vette, the engine is actually most closely associated with the 1970 SS 454 Chevelle. A Super Sport Chevelle with the LS-6 is certainly thought of by Chevy fans as the ultimate muscle car, and it’s hard to argue with them.
The original plan for the Corvette in 1970 was to pick up where the 427 left off with the big-block. The L-88 427 would simply reappear as the LS-7. The fabled aluminum-head LS-7 almost made it into production. No factory built LS7 cars were ever sold to the public. However, the LS7 heads were available over the counter at GM dealers in '71 and '72. It was a kind of special situation in 1970 - from factory the Chevelle had more horsepower as the Corvette
The original plan for the Corvette in 1970 was to pick up where the 427 left off with the big-block. The L-88 427 would simply reappear as the LS-7. The fabled aluminum-head LS-7 almost made it into production. No factory built LS7 cars were ever sold to the public. However, the LS7 heads were available over the counter at GM dealers in '71 and '72. It was a kind of special situation in 1970 - from factory the Chevelle had more horsepower as the Corvette
#18
Senior Member since 1492
Thread Starter
You may be right Prosouth: from the ads head casting number you get...
Service replacement head
6272990 or 14096188
Cast iron
Open 118cc
I: 2.19"
E: 1.88"
325
Rect.
Square
From the block casting number & Mortec.com:
that's the same block casting number I have but I have aluminum heads.
buyer beware!
Service replacement head
6272990 or 14096188
Cast iron
Open 118cc
I: 2.19"
E: 1.88"
325
Rect.
Square
From the block casting number & Mortec.com:
14015445...454.......78-90...2 or 4 bolt
that's the same block casting number I have but I have aluminum heads.
buyer beware!
Last edited by Jughead; 02-26-2005 at 01:21 PM.
#19
I have a lot of respect for the good ol' day engines, like the L71s, L88s and LS6s and the LS7, but I can't see why I would want to put an heavy high CR engine in my car and do only 500hp? I'd rather bolt in the new all aluminum LS7 and T56, you'd still get the same out put, less weight, better fuel economy. This coming from a guy who's got LS6 under the hood, all though I've added aluminum heads, intake, EFI etc to make it lighter and more fuel efficient...
I wouldn't mind getting that old LS7 and have it on display in my carage!
I wouldn't mind getting that old LS7 and have it on display in my carage!
#20
Burning Brakes
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I've read conflicting reports on whether the engine (LS7) was to receive the aluminum or cast iron R-Port Heads.
Besides the heads, the LS7 was 12.25:1 compression, and the ZL1 cam was installed. Which was alot more radical then the LS6 option.
Besides the heads, the LS7 was 12.25:1 compression, and the ZL1 cam was installed. Which was alot more radical then the LS6 option.