Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Transmission - Engine dowels

Thread Tools
 
Search this Thread
 
Old Dec 29, 2014 | 10:49 AM
  #1  
curtis73's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2010
Posts: 66
Likes: 0
Default Transmission - Engine dowels

I assumed they were the same .625" as previous SBC, but the GMPP part lists .621". I don't want to get 5/8" dowels and have them be too tight, but also don't want to get .621" and have it be loose. The only pins I have are so wasted and rusty that I can't really measure them. Only thing I have to measure the hole is a questionable set of chinese calipers that I trust about as far as I trust a politician.

Can someone help me out with the correct size?
Reply
Old Dec 29, 2014 | 12:51 PM
  #2  
03Sssnake's Avatar
TECH Resident
iTrader: (20)
 
Joined: Mar 2007
Posts: 1,000
Likes: 0
From: H-Town/Cypress
Default

GM P#1453658

.621 is the correct diameter for the bell housing dowl pins.
Reply
Old Dec 29, 2014 | 01:16 PM
  #3  
curtis73's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2010
Posts: 66
Likes: 0
Default

Thanks, ssnake.
Reply




All times are GMT -5. The time now is 11:55 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE