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bj502

03-29-2004 01:07 PM

Gen? Roller?

Can I tell without taring the engine down. On the ECM box lid: Model MCM 502 Mag EFI, Eng S/N OF 363859. Its a '95, is it a Gen V or VI. Would it have any rollers in it. I'm thinking of doing a cam change. ttfn

Pat McPherson

03-29-2004 02:15 PM

1991 to 1995 is a Gen V non roller
1996 to... Gen VI

TomR	03-29-2004 02:19 PM

If it is a GenVI, it's a roller.
The timing cover on a Gen VI has only "six" cap screws instead of "ten". The timing cover is also cast aluminum instead of stamped steele. Take a look you should be able to see!

cstraub69@comcast

03-29-2004 02:42 PM

Also the stock GM rollers if it is a Gen VI are good to a max lift of .625". Anything more and you need an aftermarket lifter.

Chris

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