Big Block Engine
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Le Mans Master
Joined: Apr 2000
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From: New York New York
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Big Block Engine
I have a chance to purchase a 427, 4 bolt main, #3963512, date May 13, 1970 and pair of heads, rectangular port, #3919840, Jan. 1967. The only draw back is the block was decked, but other wise in excellent condition.
Any ideas as to price range?
Thanks
Any ideas as to price range?
Thanks
Le Mans Master
Joined: Dec 2000
Posts: 7,245
Likes: 4
Re: Big Block Engine (plaidside)
<quote>
I have a chance to purchase a 427, 4 bolt main, #3963512, date May 13, 1970 and pair of heads, rectangular port, #3919840, Jan. 1967. The only draw back is the block was decked, but other wise in excellent condition.
Any ideas as to price range? Thanks
<unquote>
**If** the 3963512 block has a crankshaft that is 'externally balanced' and based on its date of May 13, 1970, then it is **likely** a 454 block used with open-chamber heads. There were 1969 427 blocks with this number, but they took closed-chamber heads. It's not wise to mix these two different designs as weird things happen to compression ratios and air flow.
I have a chance to purchase a 427, 4 bolt main, #3963512, date May 13, 1970 and pair of heads, rectangular port, #3919840, Jan. 1967. The only draw back is the block was decked, but other wise in excellent condition.
Any ideas as to price range? Thanks
<unquote>
**If** the 3963512 block has a crankshaft that is 'externally balanced' and based on its date of May 13, 1970, then it is **likely** a 454 block used with open-chamber heads. There were 1969 427 blocks with this number, but they took closed-chamber heads. It's not wise to mix these two different designs as weird things happen to compression ratios and air flow.
