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Old 08-20-2006, 11:03   #1 (permalink)
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406 Information

I am just curious about the 406. Can anyone give me performance information or a link to a website about them. How rare of a motor are they, and how much could I expect to pay for one IF I found one?
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Old 09-03-2006, 06:25   #2 (permalink)
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Re: 406 Information

The 406 was a one year option from 62 1/2 till 63 1/2. There were 2 versions first a single 4bbl 385 HP and then the 3x2 405 HP version. They are pretty rare but can still be found. The blocks are for solid lifters only. Also the blocks carry a "HP" identifier cast into them on the side and rear of the block. Also inside the lifter valley and by the cam bores. Most 406 blocks were 2 bolt main but some had the crossbolt bosses cast in them. There were a handful of crossbolted 406 blocks that were used in NASCAR produced by Ford. 406 blocks carry a C2 or C3 casting number. As some block casting numbers are generic the 406 production block numbers can prove a positive ID as they were paticular to the 406. Some 406 blocks were cast with 427 cyl wall cores and some std 406 wall cores. Also the blocks have a oil pressure relief valve and enlarged oil passages like the 427's. There was a C4-A 406 service block that was pretty much a underbored 427 block. I've owned a few and they are a great engine and used to be inexpensive. But because they are pretty rare prices are comparable to the 428's. Expect to pay $800+ for a good block. 406 heads can still be found for around $500 a set. The 3x2 tripowers are pricey if complete and selling in the $1500 range. Single aluminum 1x4 intakes are $500 and up. 406 pistons were forged TRW's and very hard to find either in std or oversize. Most will use a 428 crank and pistons as there are no off the shelf 406 pistons and command a custom made to order made price. The cranks were nodular iron with grooved mains. These cranks run around $500. You can use a std 390 crank as both the 406 and 390 share a 3.78 stroke. The 406 cyl bore is 4.13 stock and the same as the later 428's. Heads were small chamber and the C2SE-C's I've had came stock with 1.65/2.05 valves. Some books list them as 1.55/2.05 tho... The C3AE-C 406 heads used a very small chamber. These are often confused with the 390 heads as they carry the same casting number. Also the 390 heads have larger chambers and std size valves. I could write a novel on the 406 but I'll stop now LOL. If there is any other info you need please feel free to email. I can send you a list of block and head casting numbers and a little more info if you need it.........

G.
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Old 02-23-2009, 07:52   #3 (permalink)
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confused Re: 406 Information

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Originally Posted by FFR428 View Post
The 406 was a one year option from 62 1/2 till 63 1/2. There were 2 versions first a single 4bbl 385 HP and then the 3x2 405 HP version. They are pretty rare but can still be found. The blocks are for solid lifters only. Also the blocks carry a "HP" identifier cast into them on the side and rear of the block. Also inside the lifter valley and by the cam bores. Most 406 blocks were 2 bolt main but some had the crossbolt bosses cast in them. There were a handful of crossbolted 406 blocks that were used in NASCAR produced by Ford. 406 blocks carry a C2 or C3 casting number. As some block casting numbers are generic the 406 production block numbers can prove a positive ID as they were paticular to the 406. Some 406 blocks were cast with 427 cyl wall cores and some std 406 wall cores. Also the blocks have a oil pressure relief valve and enlarged oil passages like the 427's. There was a C4-A 406 service block that was pretty much a underbored 427 block. I've owned a few and they are a great engine and used to be inexpensive. But because they are pretty rare prices are comparable to the 428's. Expect to pay $800+ for a good block. 406 heads can still be found for around $500 a set. The 3x2 tripowers are pricey if complete and selling in the $1500 range. Single aluminum 1x4 intakes are $500 and up. 406 pistons were forged TRW's and very hard to find either in std or oversize. Most will use a 428 crank and pistons as there are no off the shelf 406 pistons and command a custom made to order made price. The cranks were nodular iron with grooved mains. These cranks run around $500. You can use a std 390 crank as both the 406 and 390 share a 3.78 stroke. The 406 cyl bore is 4.13 stock and the same as the later 428's. Heads were small chamber and the C2SE-C's I've had came stock with 1.65/2.05 valves. Some books list them as 1.55/2.05 tho... The C3AE-C 406 heads used a very small chamber. These are often confused with the 390 heads as they carry the same casting number. Also the 390 heads have larger chambers and std size valves. I could write a novel on the 406 but I'll stop now LOL. If there is any other info you need please feel free to email. I can send you a list of block and head casting numbers and a little more info if you need it.........

G.
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Old 02-23-2009, 08:01   #4 (permalink)
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Re: 406 Information

any info on this FE,intake=c3ae-9424-a
block=c5ae-a with a jan date
heads=c4ae/6090G with a jan date
crank=c1ae-a
bore 4.13x 3.78 stroke
the guy a bought it from said it was early 427, but the bore not right?
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Old 02-27-2009, 17:37   #5 (permalink)
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Re: 406 Information

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Originally Posted by tmax5151 View Post
any info on this FE,intake=c3ae-9424-a
block=c5ae-a with a jan date
heads=c4ae/6090G with a jan date
crank=c1ae-a
bore 4.13x 3.78 stroke
the guy a bought it from said it was early 427, but the bore not right?
Sent you a pm here.
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