This might help - a sign I made for my Kar.
[Blocked Image: http://www.customshowboards.com/kcode/16x24kcodetext.jpg]
The Ford warrany was different for the 289 HiPo as oposed to the standard 289. The standard warranty for the Mustang was 24 months or 24,000 miles. The warranty for the HiPo was 90 days or 4,000 miles.
"HIPO" specific parts list with forum additons:
1) BLOCK was standard 289 production engine block that has passed several manufacturing tests (sonic, dye check, etc.). Oil galley plugs are the same as production 289 engines, theaded at the bellhousing side and pressed in on the cam gear side.
2) Crankshaft was a standard crankshaft that has passed manufacturing tests (Brinell Hardness Number (BHN, standard 289 crank was ok at less than 50%, HP units were held to a 90% minimum spec).
3) Heavy Duty engine block main caps.
4) Heavy Duty rods and rod bolts.
5) High strength pistons.
6) Timing chain and gears, also extra balance "hatchet".
7) Harmonic balancer and bolt / washer.
Camshaft and lifters (solid type).
9) Cylinder head assemblies used different springs, screw-in rocker arm studs, valve spring seats cast into head and adjustable rocker arm assemblies. Cast in push rod guides were used on all 289 heads. All other specifications of the cylinder head are the same as standard production cylinder heads given the year of manufacture.
10) Larger venturi autolite carbs were used with a spacer plate as standard equipment. Holley carb with manual choke and aluminum manifold on Shelby.
11 Low restriction air cleaner assembly
12) Oil pump assembly.
13) Dual point mechanical distributor, steel core wires and HP plugs.
14) High volume fuel pump.
15) 6 fin 3 hold water pump.
16) Flywheel or flex-plate.
17) 4” alternator pulley
18) Light weight 4 blade fan and different fan shroud
19) Low restriction cast iron exhaust manifolds, headers for Shelby.
The oil pump is a standard oil pump. There was no special oil pump for a Hipo 289. The Boss 302 did get a special oil pump. After engine change level L/7 the timing chain and upper sprocket are the same for all 289 engines. The Hipo 289 fuel pump for 63 and 64 was a standard single spring unit that was also used on standard 289 engines and it was not Hipo specific. Those thousands of 63 and 64 Hipo 289 engines ran just fine with a single spring pump. The second spring was not added until 1965 when the pumps were crimped together rather than screwed together. That additional spring was put there to help keep up with high RPM wide open throttle demands as it helps to keep the arm riding on the fuel pump eccentric without floating. Keep in mind that at 6,000 RPM the fuel pump is pulsing 3,000 times a minute which is 50 times per second.
-Fred-
And don't forget about the front fender emblems.
The fan spacer on 65-66 HiPos is unique with a total length of 2.36" including the pilot.
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