Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks



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#446147 08/07/20 08:00 PM
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G&D arrived today. Article about "W" egines was of interest and mentions the "W" as being a 348, 409 and 427. I can not recall a 427 "W" engine. What am I missing?
IN general I feel the article has several "facts" the I believe are incorrect. Can't wait to see part 2 next month.


Gene Schneider
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Shade Tree Mechanic
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The '62-'63 427, RPO Z11, was made in very low numbers - about 50 - specifically for racing. They were apparently installed in cars that also sported aluminum front end components (fenders, and so on), although some race-purpose 409 cars also had those. Claims of 57 cars have not been substantiated by Chevy records, unfortunately. The engine is based on the 409, with a longer stroke. True Z11s are probably a bit of a unicorn, now. Here's a bit more on the Z11 W-block 427 Chevy..


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I always thought of those be Mark IV engines........thank you.


Gene Schneider
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Backyard Mechanic
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Who wrote the article?

Verne

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IT SOUNDS AS IF IT WAS PUT TOGETHER BY SEVERAL AUTHORS.

Last edited by Chev Nut; 08/08/20 08:19 AM.

Gene Schneider
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Well, rest assured, I wasn't one of them.
As for the 427, the Z-ll was a pure W series engine, just stroked with larger heads and a two piece intake. Not to be confused with the 427 "mystery engine" which was a completely new design that only shared the pan rail with the W series engines.

Verne

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No, your name is not mentioned.
Afer you get your G&D and read the article I would appreciate it if you would send me your opinion on the subject.


Gene Schneider

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