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Old January 23rd, 2009, 03:47 PM   #24 (permalink)
88 coupe
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Join Date: Oct 2004
Location: Southern CA
Posts: 2,032
Got my '57 numbers verified.

Quote:
Originally Posted by joe_padavano View Post
........ Was the J-2 offered across the full range of models ........
J-2 could be ordered on any car or, as a package, over the parts counter. The solid lifter cam, adjustable rockers and covers, were only available from the dealer.

Quote:
Originally Posted by 88 coupe View Post
http://www.oldsmobilewiki.com/index....ne_Performance

'57 engine: J-2 compression ratio should be changed from 9.25:1 to 10:1 ........
CR should have been changed to 9.5:1 for both 4 bbl and J-2 engines.

J-2 HP needs to be changed to 300 @ 4600 rpm and torque should be 410 @ 2800.

At the time the '57 manual was printed, J2 was still in development, and no commitment had been made. Explains why the correct numbers were hard to find.

Norm
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Quote:
Originally Posted by 380 Racer View Post
Quote:
Originally Posted by 88 coupe View Post
None of us can know what we haven't learned yet .....
........ I saw Norm's "helpful" answer and encouragement as a slam ........

Last edited by 88 coupe; January 23rd, 2009 at 03:59 PM..
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