Also note that non special heads used on these engines were the same for any of those engines for the year the engine was made, that is to say a 1962 352 and 390 used the exact same head or a 1958 332 and 352 used the same head or a 1967 352 and 428 used the same head. Ford did nothing different on 2V and 4V heads except on some applications they had different valve springs. The intakes were 2.04 inches and the exhaust were 1.56 inches (1.57 inches starting in 1961) on all 352, 360, 390, 410 and 428 engines except special performance versions from 58-76. Keep comp ratios areound 9-1.I am sorry but the valves used in 352's and 390's were the same size whether it was a 2V or a 4V. This horse **** we're paying $4 a gallon was meant for a Briggs & Stratton. throw that combo on the bigger badder 390 and LOOK OUT !!īut that was back in the days of 100 octane gas. Long and short of it, 300 (under rated HP) compared to 250? or something from a 2 bbl motor. Even though all the old time Ford guys from "the day" called the motors in the 58-60 TBirds (and the police cars) "Interceptor Motors". We won't call them Interceptor heads because I don't want to open that can of worms again. The 4bbl heads used on the 352 Thunderbirds did have bigger valves than the 2 bbl heads. note to the best of my knowledge and information I could find indicates less than 500 were built with factory air."Īnyone know what " competition three angle valve job " is? Number of angels of the valve? What´s good about that? the ac has new compressor, dryer and condenser, rear end was not rebuilt but was drained, flushed and new fluids added the current carb is a 750 cfm as the original 500 cfm wasn't adequate for the additional power, has not been dynoed but feel it should be producing upwards of 450 hp. "he car was originally a 352 but had a cracked block as well as other ailments, the 390 came out of a mid sixties pickup and the heads are 352 as they had larger valves, there is a mild cam with forged pistons, it has been ported and relieved, with a competition three angle valve job and hardened seats, the tran, both front and rear suspension rebuilt. īut I got this letter from the previous owner, who explained it like this: The seller calls it the ultimate sleeper, but we’d be more inclined to cruise in this one, enjoying the extra freeway passing torque and people’s reactions when the hood was popped at shows.Regarding 352 heads in a 390, well, the truth is that I don´t know why that works. gross ratings into account.Īppearing to be stock other than a conical air filter, front disc brakes and power rack and pinion steering are also fitted. An early version of Ford’s modular motor, these were factory rated at 280 HP, significantly more than either of the factory offerings, even without taking net vs. Originally offered with either a 292ci or 312ci Y-Block under the reverse opening hood, this car now has a ’93 Lincoln Mark VIII quad cam, 32 valve 4.6 liter V8. The standard shifter doesn’t appear to have been modified, but obviously has to have been underneath, at least to some degree. Everything looks to be in the right place, and excluding dirty kick panels and some rust on the dash, condition is generally pretty good. Though slightly blurry as photographed, the interior appears to be in a similar state of preservation. This car’s looks are hugely improved by the lack of whitewalls, Changes were few for ’56, among the most notable including relocation of the spare from trunk to a Continental Kit, and standardization of the previously optional hardtop porthole window. Photographed with the side vent opened, this car appears to be very complete and in better than average condition, with a factory looking patina enabled by a lacquer respray applied in the 60’s. Just like premier model year ’55 cars, 1956 Thunderbirds were also extremely popular, selling just a few hundred under the 16,000 and change bought the previous year. The car wears an honest looking patina, and the seller says it’s an excellent driver. Find it here on Jalopy Journal in Loveland, Ohio for $27k. OBD I and a check engine light have been wired in, while the Lincoln’s 4-speed AOD transmission handles gear changes. This 1956 Ford Thunderbird is complete from Continental kit to factory wheel covers, and now has a transplanted ’93 Mark VIII 32 valve V8 underhood.
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