New here, but have been reading this site for awhile. I'm 66 yr old and computers aint my thing. Just got on board. Need a definite way to I.D. an engine. Bought a 63 Falcon Futura Convert that was supposed to be a 170ci. From what I can tell it's a 200. Motor still in car. Runs out good but has carburetor issues. Un-tunable at idle speed. Not rebuildable. Carb has been butcherd and patched with JB weld. Ordered a new carb from Champion Carbs but it's 2-3 weeks out. Casting numbers on passenger side of block as follows: 12 C6DE 6015A The block has 3 freeze plugs and 24 oil pan bolts and has the load-o-matic (fomoco) distributor. Is this a 200ci engine? Thanks in advance. Any and all advice will be appreciated.
C=Decade of Manufacture - 1960's in this case 6= Decade Year - This is a '66 D= Car line - Falcon E=Engineering Department- E is engine department Your engine is either a 170ci or a 200ci engine, the only way to tell for sure is to check if your block has 4 main bearings or 7. All 144/170ci, and 200ci blocks prior to mid ’64, had four main bearings. While the 200ci from mid ’64 onwards, and all 250ci blocks, had seven mains bearings.
Look for a metal tag under one of the coil bolts. This tag will have your identification information for the engine. That's assuming the tag has stayed with the engine. The engineering number indicates the engine came from a '66 (or later) so with 3 freeze-out plugs it is probably 4 main bearings which would make it a 170. 200's were 7 main bearings (with 5 freeze-out plugs) from 1964 onward. Otherwise, take off the head and measure the bore x stroke. 170 has a bore and stroke of 3.5" x 2.94". 200 has a bore and stroke of 3.68" x 3.126" Lou Manglass
200-6 with a 4 speed and low gears were pretty good runners. Just like the 63 ChevyII’s that were lucky enough to have the 230’s vs the 194.
The Jalopy Journal
