65 352 block
Lead Driver
Joined: Oct 2018
Posts: 7,894
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That's correct. you need a 428 block to make a 428. if you want to use that block a 390 would make the most sense.
Are you sure it's a 352? if you're just going off the 352 casting number that doesn't mean much.
Are you sure it's a 352? if you're just going off the 352 casting number that doesn't mean much.
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
I don't mean to start an argument here, especially with a super moderator. But just for the sake of discussion, I believe if you bored a 352 .050 you would end up with a cubic inch somewhere in the 360s. Unless you were also going to use a different crankshaft and increase the stroke. Again just for the sake of discussion.
Lead Driver
Joined: Nov 2000
Posts: 6,636
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From: Albuquerque
As I recall the way to make your own 428 is to use a 390 block with 427 crank. However the 390s weren't designed for that much overbore. They tend to split the cylenders
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Lead Driver
Joined: Oct 2018
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There are basically 3 FE blocks we use today. the 360-390 block, the 428 and the 427 block.
To make a 428 you need a 428 block and crank.
To make a 428 you need a 428 block and crank.
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Super Moderator
Joined: Apr 2004
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390 and 427 have the same stroke. 4.05 vs. 4.23 bore makes the difference. And again, you can't take a 390 out to that.
Logistics Pro
Joined: Jun 2004
Posts: 4,802
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From: South Central Utah
A friend in HS had a 1966 392 2V that got bored 0.060", long story.
It ran HOT! All the time.
Cargo Master
Joined: Jun 2014
Posts: 2,217
Likes: 325
From: Central Florida
The 352 block casting is essentially the same as the 360, 390 and 410. Indeed, my 390 has the numbers "352" in the casting. You can see it right under the driver side cylinder head. There is a casting variation with a mirror image of 352. These were late '76 and are reputed to be ever so slightly tougher than their predecessors due to some additional webbing. I have one of these in my collection. Because all of these are "thin wall" castings, it is unwise to bore a 390 more than 0.060 over. Short of re-sleeving every cylinder, which has been done, that is the practical limit of bore size and even that can be too far due to core shift during manufacture. I kept my 390 to an 0.040 overbore just to be safe.
Increasing the stroke is a far better route to increased displacement. You can buy a complete balanced reciprocating assembly (crank, rods, pistons, bearings and rings from Scat and other vendors that will bring your CID into the 445+ range. As they say, "there's no replacement for displacement." The 427 and 428 are different castings both from each other and all other FEs.
Beware of resellers offering what they call 428 blocks which are nothing more that 360s or 390s over-bored to the point of almost certain disaster.
Increasing the stroke is a far better route to increased displacement. You can buy a complete balanced reciprocating assembly (crank, rods, pistons, bearings and rings from Scat and other vendors that will bring your CID into the 445+ range. As they say, "there's no replacement for displacement." The 427 and 428 are different castings both from each other and all other FEs.
Beware of resellers offering what they call 428 blocks which are nothing more that 360s or 390s over-bored to the point of almost certain disaster.
Cargo Master
Joined: Nov 2009
Posts: 2,364
Likes: 117
From: starship enterprise
Well... A 390cid is 4.050x3.784 (bore stroke) A 410cid is 4.050x3.980 (390cid bore and/or block-- longer stroke) a 427cid is 4.233x3.781 (much larger bore-- very slightly less stroke of 0.003" which is the thickness of a sheet of paper, generally referred to as interchangeable stroke to 390cid by most fundamentals) A 428cid is 4.130x3.984 (a bore dimension between 390cid and 427cid, a stroke very very similar and likely interchangeable to a 410 cid) A 360 cid is 4.050x3.50 (Same bore/block as 390 cid with less stroke) Finally, the project in question a 352 cid is 4.000x3.50 (This would possibly be a block able to be stroked with a different crank and accept an overbore to allow a rebuild into additional cubic inches over 400 cid---POSSIBLY. Not probably, not certainly, just an option for consideration) Hope this might help. I did not feel need to elaborate onto 406cid or 332cid or 361cid or 391cid specifications. Good luck.
Cargo Master
Joined: Jun 2014
Posts: 2,217
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From: Central Florida
The 361 and 391 HD truck versions of the FE are generally not of much interest EXCEPT for the fact that they have forged crankshafts. Some machining of the snout has to be done in order to use standard FE accessories and front cover. The guy who created "the poor man's 427" out of a 330 block used one of these forged crankshafts as well as sleeving all eight cylinders. It was a top oiler not a side oiler. This is still a widely discussed test case or proof of concept exercise. Nowadays a not-so-poor person just buys a cast iron or aluminum 427 block from aftermarket vendors.