289HO heads
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Senior User
Joined: Jun 2000
Posts: 110
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289HO heads
Hi guys,
I've just started to rebuild a engine i got for free, I also got a pair of 289 heads, now the guy said that they were 289HO heads, but i'm not positive, could anyone tell me if they are? I got all the numbers off of them, here they are
289
7D27
WF
7E12
C6AE
those are all the #'s off of it. Thanks guys, appreciate it
Nick"Speed equals money how fast do you want to go?"
Horsepower tv guy the fat one.
I've just started to rebuild a engine i got for free, I also got a pair of 289 heads, now the guy said that they were 289HO heads, but i'm not positive, could anyone tell me if they are? I got all the numbers off of them, here they are
289
7D27
WF
7E12
C6AE
those are all the #'s off of it. Thanks guys, appreciate it
Nick"Speed equals money how fast do you want to go?"
Horsepower tv guy the fat one.
Senior User
Joined: Feb 2001
Posts: 155
Likes: 0
289HO heads
True Hi-Po heads have one very distinctive feature. There is a boss around the spring cast into the head that keeps the spring from walking. Other features, screw in studs, but anyone can add screw-in studs. No-one can add the raised boss around the valve spring seat. You say you were given the motor and heads. I hope you kissed whoever gave you this kind of stuff. Nice gift if real hi-po heads. Some other feature's of the hi-po engines were a different harmonic balancer, dual point distributor ( not sure if on all ), four barrel intake, hi-po manifolds. There is something about the block but I don't remmember just exactly what it was.
Hope this helps,
Rich
Hope this helps,
Rich
Fleet Mechanic
Joined: Aug 2000
Posts: 1,504
Likes: 1
From: Texas
289HO heads
A true hi-po block will also have extremely thick main caps! Also a solid lifter camshaft.
Just a couple of thoughts from a former 66 mustang owner.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
Just a couple of thoughts from a former 66 mustang owner.
1988 F-150, SWB, 5.0 EFI (formerly 4.9 EFI), M5OD 5 speed, 3.08 gears, Summit shorty truck headers, Custom built Flowmaster exhaust system. Force 4 LP6000 lightbar, Federal signal PA-300 100 watt siren, Icom IC-V100 50 watt mobile radio.
=======================================
1965 F-100 (just purchased 1/18/01), SWB, 390, C-6 auto. Dual exhaust, Not much else to do to it.
Can see both below.
[link:www.geocities.com/hotrodford_88/|Hotrodford_88's Webpage]
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