352 to 390
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From: Rexburg,Id
352 to 390
I just acquired a basket-case 390: old 352 block (B9AE6015B), bored .0050-standard 390 bore, 390 4V standard pistons, 2UA crank, and C7AEB rods. I know I'm going to have issues with engine-mount location and alternator-mounting, but this was such a good deal. How difficult is it going to be to put this in my 67 F100?
I also read that this old block requires shorter head bolts; can I just shorten some from a 390 ?
Thanks in advance for your help. You guys are great!
Biggut
I also read that this old block requires shorter head bolts; can I just shorten some from a 390 ?
Thanks in advance for your help. You guys are great!
Biggut
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Joined: Oct 2005
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the 67's came with FE's in them so it shouldn't be too much of a problem i wouldn't think... but then again, when i think- bad things happen!!
as for the head bolts.. i never heard of that, but if it's to be known, ole rusty will give ya the dirt in a short time i'm sure...
as for the head bolts.. i never heard of that, but if it's to be known, ole rusty will give ya the dirt in a short time i'm sure...
Post Fiend
Joined: Jan 2003
Posts: 8,600
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From: Iowa
Way to put me on the spot!
There's a lot of little issues that will cause you big headaches with that B9AE block. The thrust bearing is smaller. The cylinder head and main bearing cap bolts are 1/4" shorter. It has 2 bolt engine mount bosses, where later blocks had 4 bolt. This might not be a problem if you're putting it in a truck, since they use the 2 bolt setup. Also, the early 352 blocks used a different cam retention method. They had a thrust button and a spring. The 1963 and later motors used a cam retention plate. Your block is not drilled and tapped for the cam retention plate bolts, so you either have to find the early timing cover or... yeah, you have to find the early timing cover.
If it was me, I'd just sell the early 352 block and recondition the 390 block. Much less trouble.
There's a lot of little issues that will cause you big headaches with that B9AE block. The thrust bearing is smaller. The cylinder head and main bearing cap bolts are 1/4" shorter. It has 2 bolt engine mount bosses, where later blocks had 4 bolt. This might not be a problem if you're putting it in a truck, since they use the 2 bolt setup. Also, the early 352 blocks used a different cam retention method. They had a thrust button and a spring. The 1963 and later motors used a cam retention plate. Your block is not drilled and tapped for the cam retention plate bolts, so you either have to find the early timing cover or... yeah, you have to find the early timing cover.
If it was me, I'd just sell the early 352 block and recondition the 390 block. Much less trouble.
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Senior User
Joined: Sep 2004
Posts: 223
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From: Rexburg,Id
this block is drilled and tapped for the cam retaining plate; but they've used helicoils for threads, although the front of the block is machined for the holes. It does have the two bolt mounts; will these work in the pickup? I don't know where I'd sell the block; there's very little market for old Ford engines around here.
Last edited by biggut; Nov 12, 2005 at 06:35 PM.
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