C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

cheapest 383 rotating kit

Thread Tools
 
Search this Thread
 
Old Aug 23, 2013 | 12:33 PM
  #1  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default cheapest 383 rotating kit

what is the cheapest kit, idk if it would be cheaper buying a crank, rods, and pistons separately? I have a 78 3970010 block that it will be going into, and I would prefer an internal balance so I can keep driving my vette until the build is complete so I can reuse the current flywheel
Reply
Old Aug 23, 2013 | 12:40 PM
  #2  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,062
From: altered state
St. Jude Donor '05
Default

Check Ohio crank or speedmotive.

Know that you may need more clearancing for rods ck the cam also. Sometimes the cheap mismatched kits require more to balance.
Just have to make the calls and do your research.
Reply
Old Aug 23, 2013 | 12:46 PM
  #3  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

Im going to have the machine shop build the short block for me so they can degree the cam and make sure everything will work together
Reply
Old Aug 23, 2013 | 01:16 PM
  #4  
MrJlr's Avatar
MrJlr
Race Director
15 Year Member
 
Joined: Feb 2006
Posts: 12,239
Likes: 19
From: Chino CA
Default

Originally Posted by 1977L48
Im going to have the machine shop build the short block for me so they can degree the cam and make sure everything will work together
what are they charging for that ?

Reply
Old Aug 23, 2013 | 01:19 PM
  #5  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

im not sure, I just tore down the engine today, when I pulled a head I noticed the NR3 piston was hitting it, pulled the piston and the bearing from the cap of the rod spun between the crank and rod, moving it up, idk if it will be able to be turned or not to correct it, its about a step of the thickness of a dime from where the bearing came to rest. I was just looking at options, everything else looked great, it had 2.02 heads on it, tons of sludge and 103k miles
Reply
Old Aug 23, 2013 | 01:35 PM
  #6  
Scott Marzahl's Avatar
Scott Marzahl
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,339
Likes: 416
From: Seattle Area WA
Default

What size combustion chambers do you have? Competition Products has a great pro street kit with 4340 rods, Icon forged pistons for less than $900.
Reply
Old Aug 23, 2013 | 01:50 PM
  #7  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

I have an extra set of big valve 882's that i would like to run, so 76cc
Reply
Old Aug 23, 2013 | 02:00 PM
  #8  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

I found fully balanced assemblies with damper and flexplate for $900 on eBay.

Google Searched on "383 Balanced Rotating Assembly 2pc"
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Aug 23, 2013 | 02:01 PM
  #9  
Rally68's Avatar
Rally68
Burning Brakes
 
Joined: Sep 2008
Posts: 805
Likes: 5
From: Naperville Illinois
Default

I saved an article on my computer some time back from Super Chevy or Chevy Hi Performance about a build they did with a 383 kit from a company called Powerhouse. I can't find it right this second, but if you google it I'm sure it's there
Reply
Old Aug 23, 2013 | 02:03 PM
  #10  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

ok, and I have the TKO500 in my vette, so I would like to go with an internal balanced crank
Reply
Old Aug 23, 2013 | 02:19 PM
  #11  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

I think powerhouse is going to be the hot ticket, I had forgotten about them but a kit, crank, pistons, rings, rods, balancer, and flywheel is 549$
Reply
Old Aug 23, 2013 | 02:26 PM
  #12  
Scott Marzahl's Avatar
Scott Marzahl
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,339
Likes: 416
From: Seattle Area WA
Default

For internally balanced?
Reply
Old Aug 23, 2013 | 02:34 PM
  #13  
1977L48's Avatar
1977L48
Thread Starter
Pro
 
Joined: Sep 2012
Posts: 600
Likes: 6
From: Key West Florida
Default

they said they do external, but I have a neutral balanced flywheel so they will use one like it to balance it before its shipped.
Reply
Old Aug 23, 2013 | 02:40 PM
  #14  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

Originally Posted by 1977L48
I think powerhouse is going to be the hot ticket, I had forgotten about them but a kit, crank, pistons, rings, rods, balancer, and flywheel is 549$
I wondered if Powerhouse was still around. They had the best price several years ago when the 383 conversion popularity really took off.

I see balancing adds $200 to the $550 price. Still a good deal at $750. However, are the parts all name-brand? Hard to tell from the advertisement. That price is also cast pistons. I assume cast 3.75 crank also.

Last edited by TedH; Aug 23, 2013 at 02:45 PM.
Reply
Old Aug 23, 2013 | 02:48 PM
  #15  
Ibanez540r's Avatar
Ibanez540r
Drifting
Supporting Member
10 Year Member
Liked
 
Joined: Oct 2012
Posts: 1,524
Likes: 61
From: Medina Ohio
Default

http://www.skipwhiteperformance.com/...roduct=T&Sub=B

http://www.whiteperformance.com/assemblies.html
Reply
Old Aug 23, 2013 | 02:57 PM
  #16  
TedH's Avatar
TedH
Le Mans Master
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 1999
Posts: 8,351
Likes: 75
From: Tampa Bay FL
Default

I think this is the outfit on eBay as the stock photo and descriptions are nearly identical.
Reply
Old Aug 23, 2013 | 08:01 PM
  #17  
63mako's Avatar
63mako
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Default

You get what you pay for. If it has a balancer and flywheel included it is externally balanced. Fast, Durable, Cheap, pick two.
Reply

Get notified of new replies

To cheapest 383 rotating kit





All times are GMT -4. The time now is 06:10 PM.

story-0
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-1
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
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE