427 heads question.
Thread Starter
Racer
Joined: Oct 2004
Posts: 413
Likes: 0
From: Cohutta GA
427 heads question.
What application would the #396297 heads off of a 427 be? I am pretty sure the motor is out of an Impala (69, I think). So are the heads correct?
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See below for the correct numbers.
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See below for the correct numbers.
Last edited by sedowney; Sep 7, 2007 at 07:32 PM.
Team Owner
Joined: Aug 2006
Posts: 24,125
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From: Columbia Missouri
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
I can't find that number either...from any source...books and manuals or on-line.
Make sure you copied the casting number down correctly and also make sure it isn't an aftermarket head.
Make sure you copied the casting number down correctly and also make sure it isn't an aftermarket head.
I will check again on Friday and post results.
Thread Starter
Racer
Joined: Oct 2004
Posts: 413
Likes: 0
From: Cohutta GA
Ok lets try again, my fault the first time.
Heads.
Driver side... F 8 8....GM4T....396428(maybe 9?)7
Passenger....I 10 9....GM4T....3964297
Block.........3963512....GM6
On the pad.....TO5I4LI....192091224
Thanks.
Heads.
Driver side... F 8 8....GM4T....396428(maybe 9?)7
Passenger....I 10 9....GM4T....3964297
Block.........3963512....GM6
On the pad.....TO5I4LI....192091224
Thanks.
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
The block casting you give is for a 1969-1971 427-454 cubic inch Corvette, Chevelle, Impala, Monte Carlo.
For the cylinder heads, are you sure the numbers you're giving are correct? There is a casting number 3964290...it's for a 1970 454 cubic inch 390 hp Corvette, Impala, Chevelle and Monte Carlo (except LS6). They should be oval port.
That's the best information I can come up with for you.
For the cylinder heads, are you sure the numbers you're giving are correct? There is a casting number 3964290...it's for a 1970 454 cubic inch 390 hp Corvette, Impala, Chevelle and Monte Carlo (except LS6). They should be oval port.
That's the best information I can come up with for you.
Thread Starter
Racer
Joined: Oct 2004
Posts: 413
Likes: 0
From: Cohutta GA
The block casting you give is for a 1969-1971 427-454 cubic inch Corvette, Chevelle, Impala, Monte Carlo.
For the cylinder heads, are you sure the numbers you're giving are correct? There is a casting number 3964290...it's for a 1970 454 cubic inch 390 hp Corvette, Impala, Chevelle and Monte Carlo (except LS6). They should be oval port.
That's the best information I can come up with for you.
For the cylinder heads, are you sure the numbers you're giving are correct? There is a casting number 3964290...it's for a 1970 454 cubic inch 390 hp Corvette, Impala, Chevelle and Monte Carlo (except LS6). They should be oval port.
That's the best information I can come up with for you.
