67 Corvette

[Anders]

Hi

I am about to buy a 67 Big block 427 Corvette.

Did 427 big Blocks come with aluminum intake from the factory or was it an option ?

What kind of carburator came with this engine ?

I will appriciate your help !

Thanks in advance

Anders

[Tom B.]

Re: 67 Corvette

Anders,

I think you should "hold up" a minute. I don't think you have enough information to make a purchase yet, at least not without some qualified, Expert help. Are you an NCRS Member OR do you have access to an local NCRS Chapter? If so contact them and try to have someone that is qualified with 67's to physically go and look at the car with you.

To answer your questions, more information is needed. There were 5 427 options in 1967, four of them had aluminum intake manifolds, with two different carburator set ups. If the car still has its original engine / engine block you will be able to determine it's correct intake set-up from it's stamped two letter code.

Please reassure us that you are taking the right steps in your purchase. Best wishes. Tom #24014

[Tom B.]

Re: 67 Corvette

Anders,

I think you should "hold up" a minute. I don't think you have enough information to make a purchase yet, at least not without some qualified, Expert help. Are you an NCRS Member OR do you have access to an local NCRS Chapter? If so contact them and try to have someone that is qualified with 67's to physically go and look at the car with you.

To answer your questions, more information is needed. There were 5 427 options in 1967, four of them had aluminum intake manifolds, with two different carburator set ups. If the car still has its original engine / engine block you will be able to determine it's correct intake set-up from it's stamped two letter code.

Please reassure us that you are taking the right steps in your purchase. Best wishes. Tom #24014

[Joe L.]

Re: 67 Corvette

Anders----

For 1967 Corvette 427s were originally equipped with one of 5 different manifolds, depending on engine option installed. 427 390 hp (L-36)engines were equipped with cast iron intake manifolds. Two different versions were used, but both were very similar. These carried GM casting numbers 3866948 or 3883948 and were of oval port configuration. 427 400 hp (L-68) tri-carb engines were equipped with an aluminum intake manifold, casting #3894382 and of oval port configuration. 427 435 hp (L-71) tri-carb engines used an aluminum manifold, casting number 3894374, which was of rectangular port configuration. 427-430 hp (L-88) engines used an aluminum manifold, casting number 3885069, which was of rectangular port configuration. On any given engine, there was NO intake manifold option.

All 1967 Corvette engines used Holley carburetors. L-36 engines used a Holley 4 barrel, L-68 and L-71 engines used 3 Holley 2 barrel carburetors, and L-88 engines used a large Holley 4 barrel carburetor.

[Joe L.]

Re: 67 Corvette

Anders----

For 1967 Corvette 427s were originally equipped with one of 5 different manifolds, depending on engine option installed. 427 390 hp (L-36)engines were equipped with cast iron intake manifolds. Two different versions were used, but both were very similar. These carried GM casting numbers 3866948 or 3883948 and were of oval port configuration. 427 400 hp (L-68) tri-carb engines were equipped with an aluminum intake manifold, casting #3894382 and of oval port configuration. 427 435 hp (L-71) tri-carb engines used an aluminum manifold, casting number 3894374, which was of rectangular port configuration. 427-430 hp (L-88) engines used an aluminum manifold, casting number 3885069, which was of rectangular port configuration. On any given engine, there was NO intake manifold option.

All 1967 Corvette engines used Holley carburetors. L-36 engines used a Holley 4 barrel, L-68 and L-71 engines used 3 Holley 2 barrel carburetors, and L-88 engines used a large Holley 4 barrel carburetor.

[Jeff C.]

Re: 67 Corvette

Hi Anders,

As Tom said there were 5 427 engine options in 1967. 1- 390 HP, cast iron manifold, 600 cfm Holley, hyd lifters, 10.25 compression 2- 400 HP, aluminum manifold, 3 X 2 bl Holley, hyd lifters, 10.25 compression 3- 435 HP, aluminum manifold, 3 X 2 bl Holley, solid lifters, 11.0 compression 4- 435 HP, aluminum manifold and heads, 3 X 2 bl holley solid lifters, 11.0 compression 5- 430 HP L88 aluminum manifold, 1 big Holley, solid lifters, 12.0 compression, only 20 real ones built

I have a 390 HP, its a great engine runs very well on 92 octane pump gas.

Hope this helps.

Jeff

[Jeff C.]

Re: 67 Corvette

Hi Anders,

As Tom said there were 5 427 engine options in 1967. 1- 390 HP, cast iron manifold, 600 cfm Holley, hyd lifters, 10.25 compression 2- 400 HP, aluminum manifold, 3 X 2 bl Holley, hyd lifters, 10.25 compression 3- 435 HP, aluminum manifold, 3 X 2 bl Holley, solid lifters, 11.0 compression 4- 435 HP, aluminum manifold and heads, 3 X 2 bl holley solid lifters, 11.0 compression 5- 430 HP L88 aluminum manifold, 1 big Holley, solid lifters, 12.0 compression, only 20 real ones built

I have a 390 HP, its a great engine runs very well on 92 octane pump gas.

Hope this helps.

Jeff

[Gary M.]

Re: 67 Corvette

Hi Anders, Whoa! #1. Take a deep breath. #2. Join the NCRS. #3. Get the latest NCRS Technical Information Manual and Judging Guide for 1967 Corvettes. #4. STUDY the 1967 TIM. #5. Ask questions. #6. Ask more questions. #7. Now consider buying a car.

Don't be penny wise and pound foolish. It's an old saying, but I talk to too many folks who ignore it's wisdom.

[Gary M.]

Re: 67 Corvette

Hi Anders, Whoa! #1. Take a deep breath. #2. Join the NCRS. #3. Get the latest NCRS Technical Information Manual and Judging Guide for 1967 Corvettes. #4. STUDY the 1967 TIM. #5. Ask questions. #6. Ask more questions. #7. Now consider buying a car.

Don't be penny wise and pound foolish. It's an old saying, but I talk to too many folks who ignore it's wisdom.