Aluminum Small-block
Instructor
Joined: Aug 2000
Posts: 205
Likes: 0
From: Chicagoland
Re: Aluminum Small-block (JohnZ)
No aluminum small-blocks before the LS1; the 302 was an ordinary production iron 350 block with a 3" crank. 
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Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
Re: Aluminum Small-block (OlGeezer)
Except for the C5 LS1/LS6 already mentioned, the only aluminum small block ever used in a production car (Corvette or otherwise) were the very, very limited GS cars. Used a 377ci all aluminum engine.
The ZL-1 aluminum big block 427 was used in only two known Corvettes in '69 and in about 50 '69 Camaros.
The ZL-1 aluminum big block 427 was used in only two known Corvettes in '69 and in about 50 '69 Camaros.
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
Re: Aluminum Small-block (gerry72)
The three GS coupes only used the 377 aluminum blocks in their first race at Nassau in '63; they were replaced by 377 iron blocks for Sebring in March '64 for durability reasons, and the two roadsters, released later, used iron blocks right from the beginning. There were sixty-nine 1969 ZL-1 Camaros; the first fifty were built in February, 1969, and the last 19 were built in March.
[Modified by JohnZ, 11:11 AM 6/16/2004]
[Modified by JohnZ, 11:11 AM 6/16/2004]