390 Short Block
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390 Short Block
Hi All,
I found someone selling a 390 short block that the owner claims to have had all machine work done on and it is just sitting in his garage because he sold the vehicle that he was going to use it on. I have not seen it yet but he said the only bad thing is that it had been bored .060 over and has flat top pistons. Is this really a bad thing? i know that this will not leave anymore room for future boring if needed. I am planning on using my 360 heads on this block. He also told me it has a medium cam in it? What should i look for and how can i identify what I am looking it so I do not run into any pitfalls? Casting numbers? Tell tale signs that something may be fishy?
Thanks Guys!
I found someone selling a 390 short block that the owner claims to have had all machine work done on and it is just sitting in his garage because he sold the vehicle that he was going to use it on. I have not seen it yet but he said the only bad thing is that it had been bored .060 over and has flat top pistons. Is this really a bad thing? i know that this will not leave anymore room for future boring if needed. I am planning on using my 360 heads on this block. He also told me it has a medium cam in it? What should i look for and how can i identify what I am looking it so I do not run into any pitfalls? Casting numbers? Tell tale signs that something may be fishy?
Thanks Guys!
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
Hi All,
I found someone selling a 390 short block that the owner claims to have had all machine work done on and it is just sitting in his garage because he sold the vehicle that he was going to use it on. I have not seen it yet but he said the only bad thing is that it had been bored .060 over and has flat top pistons. Is this really a bad thing? i know that this will not leave anymore room for future boring if needed. I am planning on using my 360 heads on this block. He also told me it has a medium cam in it?
What should i look for and how can i identify what I am looking it so I do not run into any pitfalls? Casting numbers? Tell tale signs that something may be fishy?
I found someone selling a 390 short block that the owner claims to have had all machine work done on and it is just sitting in his garage because he sold the vehicle that he was going to use it on. I have not seen it yet but he said the only bad thing is that it had been bored .060 over and has flat top pistons. Is this really a bad thing? i know that this will not leave anymore room for future boring if needed. I am planning on using my 360 heads on this block. He also told me it has a medium cam in it?
What should i look for and how can i identify what I am looking it so I do not run into any pitfalls? Casting numbers? Tell tale signs that something may be fishy?
1968/76 360/390 block is the same, has the same bore 4.05."
The only difference is the stroke: 360: 3.50" / 390: 3.78."
On sale day, 360 engines magically become 390's!
1958/64 FE engines were only installed in cars, have a different bolt pattern on the block where the rubber insulators attach than 1965/76 FE engines.
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