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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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#32705 02/08/2004 4:55 PM | Joined: Feb 2000 Posts: 5,265 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,265 | The numbers you have are for valve opening and closing for intake and exhaust. They are worthless unless you know if they are at .050" or actual seat timing ( when the valve actually touches the head ). A lot of makers don't give out this information to hide there speed secrets. Its just like advertised cam spec's. ie... 308/320 ???? when or where are they measuring from? Who knows, its just a marketing scam to make there cam sound good.
You must have actual spec's to do what you want. Joe | | |
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