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Old 02-05-2015, 08:33 AM   #1
ratrodney
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Default pic...HELP

Can anyone tell me by this pic if this is a caddy 500?? Tnx, Rod
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Old 02-05-2015, 10:36 AM   #2
Schurkey
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Originally Posted by ratrodney View Post
Can anyone tell me by this pic if this is a caddy 500?? Tnx, Rod

Not enough detail to distinguish between 500 and 472.

Distributor indicates mid-'74 or earlier. Unless it's been swapped, that rules out 425 and 368.

There's no FWD transmission visible, so it's probably not an Eldorado engine; chances are good it's a 472.

500 and 472 both used the same block casting in later years, so unless you can yank a spark plug and half-ass measure the stroke by dropping a wood dowel into the cylinder to measure how far up/down it goes, as you turn the crankshaft, there's no way I know of to be sure--except by running ID numbers; from the VIN stamped into the block, or--less reliably--using the carb number as a guide.

After 40+ years, there's no telling what previous owners may have done to the engine. It may have come from the factory as a 472, but had 500 crank/rods/pistons swapped in later.

Last edited by Schurkey; 02-05-2015 at 10:42 AM.
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