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1963
There were two engine options available, one was the 390 cubic inch, and the other was the 429 cubic inch.
1963 390 firing order should be 1-8-7-2-6-5-4-3. dwell 30 deg. timing 5 deg BTDC.
1963 tbird 390 cid = 5 qts
1-3-7-2-6-5-4-8
The only motor I've found was standard on all models in 1963 was a 325 horse power 390 cubic inch v-8.
The 1961 Cadillac had a 390 cubic inch engine. The firing order is 18436572 with the number one cylinder on the front of the drivers side.
15426378
Where is the number one cylinder located on a 390 engine 1966 and are they 1357 on one side and 2468 on the other? thanks
1-8-7-2-6-5-4-3 Front of engine driver's side 1-3-5-7 Passenger's side 2-4-6-8
All 61-65 Thunderbirds came with the 390 FE engine. No other engine available from the factory.
High Mileage, Zinc-enriched 50 weight from Valvoline.