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This guide is for the 472/500/425/368 engine family, and includes pictures, casting numbers, and notes to aid in positively identifying exactly which version of this engine family you are looking at. Engine Building Basics (PDF) Basic instructions, tips, tricks, and specs for assembling your Cadillac engine.
- Block ID
- Piston ID
- Crank ID
- Cylinder Head ID
- Other Engine ID Notes
The first step is to ID the engine block. The block casting number is found at the rear of the Cadillac engine, between the intake manifold and transmission bell housing, right next to the oil pressure sending unit. The casting number is the raised, cast in number on the passenger side. Note that the ’68-’69 (and a few rare ’70 472s) use a block th...
The ’68-’70 472″ and ’70 500″ engines have the 10:1 (or 10.5:1) pistons. Do not assume your high lift cam will work with those pistons! Those are compression reliefs, not valve reliefs. The Dish is shaped something like a figure 8 or ‘squashed peanut’, and is sometimes described as 2 overlapping round dishes. The ’68/’69 dish is a slightly differen...
500 crank casting numbers are usually next to the 2nd or 4th main journal. 472s are usually on the 3rd counterweight. The 425 and 368 crank is the same stroke as the 472 crank, and is physically interchangeable, but this is not recommended due to balancing and weakness issues. The 425 and 368 crankshafts can usually be identified by a scalloped sha...
The cylinder head casting numbers can be found in 3 places. The full 7 digit casting number can be found on the top of the head, between the rocker mounting points. It is not uncommon for this number to be missing. The last 3 digits of the casting number can always be found on the bottom side of the head, in a recess under one fo the center exhaust...
’68 – mid ’70 engines used the first generation heat operated choke, with an exhaust passage around the front of the carb. These intakes have a cast rectangular box-shaped choke well. Mid’70-’73 engines do not have the heat passage around the carb, and have a round choke well with what looks like a freeze plug in the bottom of it. Many ’68-’70 engi...
Dick Miller Racing Builds A 541ci Cadillac V-8. Would You Believe 649 lb-ft And 526 hp? writer: Marlan Davis photographer: Dick Miller Racing, MTS. It's not your grandpa's Cadillac engine.
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Jun 14, 2016 · Cadillac engines soon found their way into numerous racing boats and more than a few sports car specials. In fact, most of the popular British Allard K-3 roadsters sold without engines and...
Mar 10, 2014 · Discover the history of Cadillac's iconic V8 engines, from the pioneering Northstar to powerful supercharged versions. Learn more here.
Feb 3, 2017 · Cadillac finished 1-2 overall at the Rolex 24 Hours of Daytona. Here's a look at the 600-horsepower 6.2-liter V8 engine that powered those prototype cars.
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Engine number location: 1951-52: on top, rear end of cylinder block, next to distributor. 1953-64: on top, front end of cylinder block. 1965-66: on a pad on the right front of the block immediately in front of the right cylinder head.
