engine casting #'s - Chevelle Tech
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post #1 of 11 (permalink) Old Oct 20th, 10, 5:25 PM Thread Starter
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Larry
 
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engine casting #'s

OK, first, I'm no pc geek. I tried to search but can't seem to find what I need. Can somebody tell me the block casting # for a 66 396/375? Going to look at a car friday and want some facts to go by.
Thank you!!!

67 chevelle, 496/400/12bolt.
red/black int.
"Sure, I can make that slower for ya."
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post #2 of 11 (permalink) Old Oct 20th, 10, 5:39 PM
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Ethan
 
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Re: engine casting #'s

I believe it would be 3855962. I'm pretty sure that is it.

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post #3 of 11 (permalink) Old Oct 20th, 10, 5:45 PM
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Re: engine casting #'s

If your trying to validate originality ,you'll want more than just the block casting number.
Get what you can that's shown in the pic


Casting date and engine id are great to tell if this is the engine the vehicle was born with.

Here's the 66 Chevelle BBC engine id codes
ED 66 396 Chevelle 325 L-35 4-Spd 4-Brl
EF 66 396 Chevelle 360 L-34 4-Spd 4-Brl
EG 66 396 Chevelle 375 L-78 4-Spd 4-Brl
EH 66 396 Chevelle 325 L-35 4-Spd 4-Brl
EJ 66 396 Chevelle 360 L-34 4-Spd 4-Brl Holley, A.I.R.
EK 66 396 Chevelle 325 L-35 Power Glide 4-Brl Holley
EL 66 396 Chevelle 360 L-34 Power Glide 4-Brl Holley
EM 66 396 Chevelle 325 L-35 Power Glide 4-Brl A.I.R.
EN 66 396 Chevelle 360 L-34 Power Glide 4-Brl Holley, A.I.R.

Block should be the 962 as posted but if it's not a 375hp ,it should be the 961.
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post #4 of 11 (permalink) Old Oct 20th, 10, 5:49 PM
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Re: engine casting #'s

Quote:
Originally Posted by Ethan1 View Post
I believe it would be 3855962. I'm pretty sure that is it.
Usually... I think there were some 961 4-bolt blocks, as well as perhaps some late 406 blocks, depending on the cars build date...

Quote:
Block should be the 962 as posted but if it's not a 375hp ,it should be the 961.
Some 360 HP came with 4-bolt blocks (#962s too)

Not fool proof, but fairly reliable to look for the large oil fittings above the oil filter (2 bolt blocks usually only had one fitting, while 4-bolt blocks usually had two LARGE fittings). 375 HP will use the 4-bolt. Some 360 HP also used the 4-bolt blocks.

Heads should be 858s, intake 069... Pulleys should be deep grooved, with a cast-iron crank pulley.

Check the sticky in the "restoration" forum, and it will tell you what the proper radiator should be.

Once you go RAT, you never go back...
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post #5 of 11 (permalink) Old Oct 20th, 10, 6:00 PM
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Re: engine casting #'s

"Can somebody tell me the block casting # for a 66 396/375? "

Tony is correct, 961 4-bolt used at end of year (approx. late May through July) with the possiblity of 406 4-bolt at the very end. Otherwise, a 962 4-bolt.

66 El Camino 396/325HP 4-Spd
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post #6 of 11 (permalink) Old Oct 20th, 10, 6:10 PM
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Re: engine casting #'s

Additional info so you don't need to look too far
http://chevellestuff.net/1966/index.htm

Dale's site has codes and how to interpret the VIN and cowl tag's.
Sorry Dean ,it's just easier on the poster if I just link it
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post #7 of 11 (permalink) Old Oct 21st, 10, 3:07 AM Thread Starter
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Re: engine casting #'s

Thanks guys. Trim tag says built 5th week oct. which I guess is good. Heard 375 was a late option in 66?

67 chevelle, 496/400/12bolt.
red/black int.
"Sure, I can make that slower for ya."
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post #8 of 11 (permalink) Old Oct 21st, 10, 7:49 AM
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Re: engine casting #'s

That would be the 5th wk of Oct 1965! Which would be early in the model year. Model years ran August to July of following year*, * which is the model year.


In Oct of 1966 they would have already been building 1967 models for 2 months.
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post #9 of 11 (permalink) Old Oct 21st, 10, 1:20 PM
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Re: engine casting #'s

Quote:
Originally Posted by R66SS427 View Post
Thanks guys. Trim tag says built 5th week oct. which I guess is good. Heard 375 was a late option in 66?
375 hp was an option late in the 67 model year, not 66. Available all year from what I know in 66.

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post #10 of 11 (permalink) Old Oct 21st, 10, 5:29 PM Thread Starter
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Re: engine casting #'s

Quote:
Originally Posted by bcmiller View Post
375 hp was an option late in the 67 model year, not 66. Available all year from what I know in 66.
Yup. You're right.

67 chevelle, 496/400/12bolt.
red/black int.
"Sure, I can make that slower for ya."
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post #11 of 11 (permalink) Old Oct 23rd, 10, 1:16 PM Thread Starter
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Re: engine casting #'s

Well, the guy was a fraud. Said he had XXXthousands in receipts but "oh dard, he forgot them". Car was nothing like the add. He was just trying to steal a high dollar car in trade for his junk. Needles to say, I didn't bite. Thanks anyway guys.

67 chevelle, 496/400/12bolt.
red/black int.
"Sure, I can make that slower for ya."
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