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08-28-2006 01:41 PM #1
Did I buy a 428 and get a 390 Thunderbird?
Okay, I am not an expert, but I thought I did everything right when I bought a 1966 thunderbird with all matching VIN numbers (6y81q138432). The car had a blown head gasket so I took the heads in for re-working. The machinist told me they were 390 heads. That started a sinking feeling that something was wrong. So upon looking at the engine cast: "C6ME-", I called him with that and he told me that in looking that up the book says the cast code was for "all Ford Engines EXCEPT a 428" Is there anyone who would agree with this machinist? I am very discouraged as I paid a higher price for the car for a Q code engine. Many Thanks.
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance