Let's correct one statement from the end of the second page.
One final note about the 425-hp 454 LS6 enfines. It's the first time Chevrolet has offered aluminum cylinder heads on a "street" engine.
Somehow the writer never heard of the 1967-68-69 L-71/L-89 Corvettes, or the L-78/L-89 Chevelles and Novas of 1969 (and possibly other years). In all cases, the L-89 referred to the aluminum head option.
We won't hold the 1967-68-69 L-88 Corvettes against him, nor the 1969 ZL-1 Corvettes and Camaros, because they were not intended as "street" engines.
Hey Bob, that's good stuff. I am in no way an engine expert but I enjoy learning as it seems at this stage of my life I have just a little more time to research and observe. Was interesting where you referred to the ZL-1 engines. I was over at my friend's house last week and he bought one of them when they made a limited run of them as an anniversary feature. I think they made around 2 to 4 hundred of them and then destroyed the casting. It cost him around 20 grand and then he sent it down to the States and had the whole engine polished. It is absolutely gorgeous. He just has it on a stand now in his basement but I think it may well end up in a future rod down the road.
ZL1........It cost him around 20 grand and then he sent it down to the States and had the whole engine polished.
Imagine being able to afford something like that to sit in the basement.
You're right, it's a little different situation. There is also room for 8 cars in the basement. But I am glad there are people like this, they do create alot of employment out here.
There is a 69 Corvette in these parts with one installed, looks real pretty, goes like crazy. I am sure I have a photo. Need to search archives but I will find it!
'64 Parisienne CS "barn find" - last on the road in '86 ... Owner Protection Plan booklet, original paint, original near-mint aqua interior, original aqua GM floor mats, original 283, factory posi, and original rust.
Here's GM's two-page look at the new for 1971 low-compression engines.
Interesting!. What book is that from and is it known what the printing date is?. Any of these LS6/L89 engines would've been sold over the counter only as Chevrolet built just 18 units of the 1970 Chevelle L78/L89 cars before the alum. head option on production cars was discontinued..
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I like real cars best...especially the REAL real ones! ----------------------------------------------------------------
Regarding the 1971 LS6, aluminum heads were used. All production LS6 engines were installed only in Corvettes (188 LS6 Corvettes built). They were planning on making the LS6 available in the Chevelle SS, Monte Carlo SS, El Camino SS & GMC Sprint SP for 1971 but the option was cancelled on them just before production.
In 1970 the LS6 had cast iron heads and was supposedly available only on the Chevelle SS & El Camino SS. The LS5 ended up being the top Corvette engine in 1970, but they were planning to release the LS7, under-rated at 465 gross horsepower (the LS7 was basically a 454 c.i. version of the L88, so I'd expect in excess of 600 horsepower for it). The LS7 was only ever offered as a crate motor and was offered over the counter through about 1989.
Thanks for posting, 67Heaven! I like the fact that in that transisional year, 1971, they published both gross and net horsepower and torque figures. It helps you realize that the 1972 models weren't as wimpy as they were playing it off as. Yes, 1972 was the year that GM stopped putting air cleaner displacement & horsepower decals on their engines (except for the Pontiac 455 H.O.)
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67 Chevelle Malibu Sport Coupe, Oshawa-built 250 PG never disturbed.
In garage, 296 cid inline six & TH350...
Cam, Toronto.
I don't judge a man by how far he's fallen, but by how far back he bounces - Patton
