300 Head differences
Lead Driver
Joined: Jul 2009
Posts: 6,477
Likes: 19
From: Sheffield, AL
Thudpucker,
A friend of mine in Muscle Shoals [about 70 miles from you] has a 1986 F150 with 4.9L/300 engine which is available. It came from a local utility department with reportedly 61,000 miles.
If interested, PM me and I will give you his contact information.
Elder User
Joined: Sep 2014
Posts: 862
Likes: 7
From: like subarctic, brrr man!
I've tossed two knocking ones so far... and feel bad because of it.
No one wants them around here and no-one rebuilds them anymore. So they hit the scrap metal pile at the dump D:
Also, shipping costs are prohibitive as I live in the sub-arctic.
No one wants them around here and no-one rebuilds them anymore. So they hit the scrap metal pile at the dump D:
Also, shipping costs are prohibitive as I live in the sub-arctic.
Posting Guru
Joined: Jan 2000
Posts: 1,899
Likes: 1
From: Cullman Alabama
300 in AK.
I had three of them (300 Six/4spd,4x4) in Alaska. Two Bronco's and a F-150. All were stick shift, 4x4's that were great vehicles.
The common problem was the Exhaust manifold cracking. The last Manifold I bought was nearly $400.
I made a 'heat blanket' of Tin, to cover the Exhaust manifold, to keep the Temp changes from such extremes.
The 72 F-150 got the same gas mileage as the 89 Bronco with the emissions. About 13 Mpg on average. But in the Winter the mileage always went down to 11 or so.
That 'Heat blanket' brought the mileage up, and also helped the engine Idle when starting in Below-Zero temps.
One 300 knocked, but the oil pressure was good. It ran that way for two years.
I'm sure it was in the Valve train somewhere, but never found it.
The common problem was the Exhaust manifold cracking. The last Manifold I bought was nearly $400.
I made a 'heat blanket' of Tin, to cover the Exhaust manifold, to keep the Temp changes from such extremes.
The 72 F-150 got the same gas mileage as the 89 Bronco with the emissions. About 13 Mpg on average. But in the Winter the mileage always went down to 11 or so.
That 'Heat blanket' brought the mileage up, and also helped the engine Idle when starting in Below-Zero temps.
One 300 knocked, but the oil pressure was good. It ran that way for two years.
I'm sure it was in the Valve train somewhere, but never found it.
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Bern_F150_4x4
Ford Inline Six, 200, 250, 4.9L / 300
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May 1, 2003 01:30 AM
