Welcome to City-Data.com Forum!
U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Automotive
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
Reply Start New Thread
 
Old 03-22-2009, 09:41 PM
 
3,223 posts, read 10,094,453 times
Reputation: 2227

Advertisements

What was the best GM big block motor ever made?
Reply With Quote Quick reply to this message

 
Old 03-22-2009, 10:10 PM
 
Location: Earth
4,237 posts, read 24,770,378 times
Reputation: 2274
I'd say the 1970 455 Stage I engine. Rated at only 370 hp but was rated a 510 ft. lbs of torque at a low 2800 rpms. Talk about a stump puller. I'll bet you could run 13's in a 3500 lb Skylark with a TH400 and a 3.08 rear end gear with that thing. Impressive for 1970.

Next in line would be a 454/502/572 Chevy engine.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:17 PM
 
Location: Boardman, OH
602 posts, read 2,033,120 times
Reputation: 386
Quote:
Originally Posted by Deez Nuttz View Post
I'd say the 1970 455 Stage I engine. Made 510 ft. lbs of torque at a low 2800 rpms. Talk about a stump puller.
I assume you mean the 455 Buick? Pontiac and Olds also had a 455. Same displacement but completely different engines.

If I had to choose a GM BB, I'd go with the 427 Chevy. I'd love to have C2 Corvette convertible with a 427 and side pipes.

That said, I'm probably a bigger fan of Ford and Mopar big blocks.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:22 PM
 
Location: Northeast Tennessee
7,305 posts, read 28,211,967 times
Reputation: 5523
ALL of the GM 455 engines were good engines... the Pontiac, Olds and Buick. I have a 455 Pontiac in my 73 Pontiac and its a super good engine. I had a 455 Buick as well... super reliable engines.
I have had an Olds 455 as well.... again, no complaints.

I have once heard that the Buick 455 is the "toughest" one of all, the Pontiac 455 is the best one to "build up" as a performance engine and the Olds 455 is a mix of both, but all are rated to be about the same.

The Cadillac 472 is also a very good engine, as is the 500 Cadillac engine.

I have had two big block Chevrolets... one was a '69 396 and my current one is a '72 402 and dads brother has a 396 in his '69 Chevelle Malibu SS that he bought brand new. Very good engines, but the big block Chevies tend to have cam shafts that wear out faster than the other GM big blocks.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:23 PM
 
3,223 posts, read 10,094,453 times
Reputation: 2227
Quote:
Originally Posted by truemuck View Post
I assume you mean the 455 Buick? Pontiac and Olds also had a 455. Same displacement but completely different engines.

If I had to choose a GM BB, I'd go with the 427 Chevy. I'd love to have C2 Corvette convertible with a 427 and side pipes.

That said, I'm probably a bigger fan of Ford and Mopar big blocks.
I always thought the 455 motors were exactly the same in all cars, I never knew the 455's in the Buicks, Oldsmobile's and Pontiac's were completely different engines, weren't the 455's first introduced on the Oldsmobile's?
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:23 PM
 
Location: Earth
4,237 posts, read 24,770,378 times
Reputation: 2274
Quote:
Originally Posted by truemuck View Post
I assume you mean the 455 Buick? Pontiac and Olds also had a 455. Same displacement but completely different engines.
Yes I meant Buick. Olds and Pontiac 455's didn't quite have the same torque rating as a 455 Buick Stage I engine did.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:24 PM
 
3,223 posts, read 10,094,453 times
Reputation: 2227
Quote:
Originally Posted by Deez Nuttz View Post
I'd say the 1970 455 Stage I engine. Rated at only 370 hp but was rated a 510 ft. lbs of torque at a low 2800 rpms. Talk about a stump puller. I'll bet you could run 13's in a 3500 lb Skylark with a TH400 and a 3.08 rear end gear with that thing. Impressive for 1970.

Next in line would be a 454/502/572 Chevy engine.

I always thought 370hp from a big block motor was an awful lot of power and they were also really torquey motors.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:25 PM
 
3,223 posts, read 10,094,453 times
Reputation: 2227
Quote:
Originally Posted by Tennesseestorm View Post
ALL of the GM 455 engines were good engines... the Pontiac, Olds and Buick. I have a 455 Pontiac in my 73 Pontiac and its a super good engine. I had a 455 Buick as well... super reliable engines.
I have had an Olds 455 as well.... again, no complaints.

I have once heard that the Buick 455 is the "toughest" one of all, the Pontiac 455 is the best one to "build up" as a performance engine and the Olds 455 is a mix of both, but all are rated to be about the same.

The Cadillac 472 is also a very good engine, as is the 500 Cadillac engine.

I have had two big block Chevrolets... one was a '69 396 and my current one is a '72 402. Very good engines, but the big block Chevies tend to have cam shafts that wear out faster than the other GM big blocks.
The Cadillac 472's never seem to get as much recognition as the Chevy 427's, Chevy 454's and the GM 455's, what kind of Chevrolet's did you own that had the big block motors?
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:42 PM
 
Location: Earth
4,237 posts, read 24,770,378 times
Reputation: 2274
I had a Chevelle that had a 408 big block...which was really just a .060 over 396 block. It was quite an animal but required a big cam, fairly big stall and a low gear to make it one. Although I don't rate it as the best big block especially since it carries a weight penalty with a reduction of cubes.

How about the worse GM big block? I give that one to the 366 truck engines.
Reply With Quote Quick reply to this message
 
Old 03-22-2009, 10:50 PM
 
Location: Northeast Tennessee
7,305 posts, read 28,211,967 times
Reputation: 5523
Quote:
Originally Posted by Mopac1980 View Post
The Cadillac 472's never seem to get as much recognition as the Chevy 427's, Chevy 454's and the GM 455's, what kind of Chevrolet's did you own that had the big block motors?
I think its where the big block 472 was standard in the Cadillac... it was optional in the other cars so people tend to take more notice.

Both of my cars were/are Caprices. The 1969 396 was a Caprice 4dr hardtop sedan and the 1972 (which I have now) is a Caprice Estate wagon.

Photo time...
Here is my old '69 Caprice sedan





and my '72 Caprice wagon (I have since repaired the back window)

this was before the engine cleaning/rebuild...



Last edited by Tennesseestorm; 03-22-2009 at 10:59 PM..
Reply With Quote Quick reply to this message
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.

Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.


Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Automotive

All times are GMT -6. The time now is 12:00 PM.

© 2005-2024, Advameg, Inc. · Please obey Forum Rules · Terms of Use and Privacy Policy · Bug Bounty

City-Data.com - Contact Us - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 - Top