C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

52mm BBK, Is this right?

Thread Tools
 
Search this Thread
 
Old Apr 5, 2002 | 01:29 AM
  #1  
khornet's Avatar
khornet
Thread Starter
Pro
 
Joined: Sep 2001
Posts: 587
Likes: 0
From: Phx/but its a dry blast furnace kinda heat AZ
Default 52mm BBK, Is this right?

I know this topic has come up before...

Is the roughness or lack thereof a machined airfoil normal for these?
Doesn't look entirely terrible but I guess I expected more. Silly me :crazy:

FYI..This is a BBK (Power-Plus) #1543, no mention of Edelbrock on the box either.
Reply
Old Apr 5, 2002 | 01:51 AM
  #2  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: 52mm BBK, Is this right? (khornet)

I have the 52mm BBK on my '88 and it's rough too. Also the boot is very hard to slip over the opening (bad sizing by BBK).

Had I seen the AS&M TB first it would be on both my rides. Compared to the BBK the AS&M unit is a fine precision piece.
Reply
Old Apr 5, 2002 | 01:56 AM
  #3  
khornet's Avatar
khornet
Thread Starter
Pro
 
Joined: Sep 2001
Posts: 587
Likes: 0
From: Phx/but its a dry blast furnace kinda heat AZ
Default Re: 52mm BBK, Is this right? (65Z01)

Compared to the BBK the AS&M unit is a fine precision piece.
It better be for the additional $200+!


[Modified by khornet, 9:56 PM 4/4/2002]
Reply
Old Apr 5, 2002 | 02:09 AM
  #4  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: 52mm BBK, Is this right? (khornet)

Ouch! I didn't price it out when I was at AS&M checking out their LT runners. Since their runners are competitively priced I assumed their TB would be too.
Reply
Old Apr 5, 2002 | 11:53 AM
  #5  
lead_foot's Avatar
lead_foot
Racer
15 Year Member
 
Joined: Jan 2002
Posts: 341
Likes: 1
From: Cave Creek AZ
Default Re: 52mm BBK, Is this right? (khornet)

I just bought a BBK for my 96. It looks the same.I decided to go with the BBK instead of the AS&M unit, which is a rebuild. Might have been a mistake. I did price the AS&M and it was under $300. w/ exchange.
Reply
Old Apr 5, 2002 | 01:39 PM
  #6  
tomservo's Avatar
tomservo
Drifting
10 Year Member
 
Joined: May 1999
Posts: 1,556
Likes: 0
From: Springfield Va
Default Re: 52mm BBK, Is this right? (lead_foot)

This is a question along similar lines......does your 52mm BBK look different than your stock TB? I assumed when I got it that it would look the same only bigger, but in actuality it appears that certain intakes etc are cut differently. Is this normal? I can post pics if that would help explain what I mean...
Reply
Old Apr 5, 2002 | 02:11 PM
  #7  
vettmanlt4's Avatar
vettmanlt4
Racer
15 Year Member
 
Joined: Sep 1999
Posts: 341
Likes: 0
From: Mt. Prospect Illinois
Default Re: 52mm BBK, Is this right? (tomservo)

I just got the BBK a few days ago and I was gonna ask the same question mine looks the same with the rough cast surface finish. I can easily smooth it out , I am wondering if the airfoil piece you can spend $40.00 on will help
much and will it seat properly on the throttle body rough cast surface.


Reply
Old Apr 5, 2002 | 02:41 PM
  #8  
khornet's Avatar
khornet
Thread Starter
Pro
 
Joined: Sep 2001
Posts: 587
Likes: 0
From: Phx/but its a dry blast furnace kinda heat AZ
Default Re: 52mm BBK, Is this right? (tomservo)

This is a question along similar lines......does your 52mm BBK look different than your stock TB? I assumed when I got it that it would look the same only bigger, but in actuality it appears that certain intakes etc are cut differently. Is this normal? I can post pics if that would help explain what I mean...
Haven't got that far yet.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 5, 2002 | 03:46 PM
  #9  
SPD DMN's Avatar
SPD DMN
Le Mans Master
20 Year Member
 
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Default Re: 52mm BBK, Is this right? (khornet)

I ran a 52MM BBK for a while. The casting was rough. I am not sure smoothing it out will improve anything and it would most likely not be worth it to get an aftermarket air foil. I liked it, but opted for the Holley unit. Much nicer as it is a solid billet aluminum peice whereas the BBK is a cast unit. Both function well though.
Reply
Old Apr 5, 2002 | 08:56 PM
  #10  
Jim85IROC's Avatar
Jim85IROC
Le Mans Master
10 Year Member
 
Joined: Jul 2001
Posts: 5,297
Likes: 0
From: Stamford VT
Default Re: 52mm BBK, Is this right? (Vette92)

I was just about to ask about the holley, since they don't cost much more than the BBK. I take it you're happy with the holley?
Reply
Old Apr 5, 2002 | 09:07 PM
  #11  
ezmoney92's Avatar
ezmoney92
Racer
 
Joined: Apr 2001
Posts: 318
Likes: 0
From: Tinley Park, IL.
Default Re: 52mm BBK, Is this right? (Jim85IROC)

I looked at the BBK and have heard lots of complaints about the quality. The ASM 52mm is a stock unit bored out to 52mm. I would say pay the extra and go with the ASM 54mm unit. It is billet and is a very nice piece. Check with Speed Demon Motorsports, I heard they had a good price on them. :seeya
Reply
Old Apr 5, 2002 | 09:34 PM
  #12  
Nathan Plemons's Avatar
Nathan Plemons
Race Director
15 Year Member
 
Joined: May 2001
Posts: 14,165
Likes: 9
Default Re: 52mm BBK, Is this right? (khornet)

I've got the Holley. It's a very pretty piece, but I've dyno proven it useless on my current setup. Unless you have a set of heads I can tell you that you are wasting your money. I'm part of that club, but I got mine VERY cheap so I'm not upset about it.
Reply
Old Apr 5, 2002 | 10:44 PM
  #13  
Hutch's Avatar
Hutch
Melting Slicks
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2000
Posts: 2,069
Likes: 25
From: Orlando FL
Default Re: 52mm BBK, Is this right?

Boys, boys, boys... First of all, listen up to what Nathan said. Don't expect ANY improvement with a larger TB unless you've got a good set of heads behind it. It generally won't hurt anything but don't expect the world, either. Its a simple bolt-on mod that may help as you build up the engine further. One caveat... I don't suggest putting a 58mm on a stock displacement motor.

I ran a 52mm Edelbrock/BBK on my GS for a couple years and it worked great. Never had a problem. As I recall the inside of it was fairly smooth but not polished. Don't sweat it, it won't make any difference.

And as far as cost goes, the BBK is outright. I think the others are exchange. My advice is to save your money for a heads and cam package.
:yesnod:
Reply
Old Apr 6, 2002 | 04:36 PM
  #14  
Guest
Guest
 
Posts: n/a
Default Re: 52mm BBK, Is this right? (Z06VERT)

The BBK is slightly rough, I have both the Holley 58mm (daddy likes :yesnod:) and the BBK 58mm, the Holley is what I'm using and I have no complaints, looks are great. I wouldn't expect you to gain much by smoothing but what the hey, go for it.

Ditto the heads and cam comments.
Reply
Old Apr 6, 2002 | 05:28 PM
  #15  
Jim85IROC's Avatar
Jim85IROC
Le Mans Master
10 Year Member
 
Joined: Jul 2001
Posts: 5,297
Likes: 0
From: Stamford VT
Default Re: 52mm BBK, Is this right? (Mark84_L383)

I'm interrested in the holley more or less because my stock one looks like hell, but for now I may just polish it.
Reply

Get notified of new replies

To 52mm BBK, Is this right?





All times are GMT -4. The time now is 05:39 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE