Is this VIN/trim tag and block stamp real?
#21
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Member Since: Oct 2000
Location: Washington Michigan
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John,
A techinicality, but I believe they did use rotary mills on the W block engines at Tonawanda /CFD. Don't know for sure, but I suspect the 74 deg angle didn't work with the broach mill. I've never seen a W block without the rotary marks including several NOS examples.
A techinicality, but I believe they did use rotary mills on the W block engines at Tonawanda /CFD. Don't know for sure, but I suspect the 74 deg angle didn't work with the broach mill. I've never seen a W block without the rotary marks including several NOS examples.