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Mod | | | Forums66 Topics128,134 Posts1,056,402 Members48,441 | | Most Online14,466
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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| | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | patrick's list them as 2.153" vs 2.030
i was at the shop a bit ago, and my '61 block measures 1-4; 1.965, 2.030, 2.090, 2.150. the cam that came out of it is a gm 52 3836127. also, the ref book lists the rods @ 11.474, but mine are 11.31. diff length bec it's a '56 head?
scratch-scratch-scratch | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | 1954 was the change over year, early were small journal, late were large. Yours will be large.
I am not sure why the push rod lengths given in the books never seem the same as an actual push rod, who knows where they were measuring from.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Apr 2009 Posts: 431 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 431 | livin large - right. and that's what the ref book said. but why is mine in four diff sizes, and with two of them matching the 2.03 AND the 2.15?
and, while patrick's lists the diff between grind/int/ext/lift with all being 3/4, what's the 'rumpy' mean in relation to the 'mild' and 3/4? and while i'm sure the science has something to do with it, the adjectives don't have an equivalent in my head | | |
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