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Original Message
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RE:352HP bit test |
By McQ - 06/22/2004 2:00:55 PM; IP 65.176.104.144 |
As for oiling mods to the block...minimal except the oil return from the oil filter adaptor is larger than a standard 352. And the oil filter adaptor itself has had the passages slightly enlargened over a standard. The 352HP blocks are cast for hydrualic lifters too. But of course the cam was the same HP cam used in the future 390HP; 406; and early 427s.
The oil pump was unique with a larger spring. It is the same pump as the C2AE introduced to the 406 and also stock on 428CJs. The oil pick up has a support brace added. The HP pan is about an inch deeper to the rear(not the sump) along with a unique baffle.
The 352HP heads are COAE-D, the same heads carried over into '61 for the 390HP. They have the smallest combustion chamber of any FE head, 58-60cc. What they provided was a compression ratio of 10.6:1 with standard flat top 352 pistions, same 10:6:1 with the '61 dished 390 piston. Standard 352-4V/early 390-4Vs were 9.5:1 with the standard heads. Valve size was the same as standard on the HPs.
The tri power was not available until April of 1961. A mid year option to the HP390 buyer. This fabulous system would bump the 375 horse rating of the HP390 to 401 horses. This complete system came in a box in the trunk of any '61 Ford so ordered. The early '62 Fords was available with the 375/401 HP390 through December of '61. By this time though they had their own unique VIN (M) and the tri power was installed at the factory. The 4 speed was also factory installed by '62 also.
I could go on and on about the '60/'61 but I'll stop boring you with this windy post.
Did you know that it was the '61 HP that first saw the front cross over brake line get routed to the front, over the frame brace just behind the radiator and back to the right front wheel?
Pop quiz time class: Why was the brake line run like that for the '61 HP and all future through '64 big Fords/Mercs with HP engines? |
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